What Is a Rope Pump?

Corrosion-resistant pumps, as the name suggests, are pumps with corrosion resistance, mainly used for the transportation of corrosive liquids. It is a widely used pump in general equipment pumps. At present, the most widely used domestic market for corrosive liquid transportation is the corrosion-resistant pumps made of fluoroplastics. The corrosion-resistant pumps made of their materials have the advantages of wide and superior corrosion resistance range, low product cost, and convenient maintenance operations.

Corrosion resistant pump

Corrosion-resistant pump is a cantilever single-stage single-suction centrifugal pump, which is specially designed for the transportation of corrosive media containing fine particles. The pump is made of steel-lined ultra-high molecular weight polyethylene (UHMW-PE). The material is The latest generation of corrosion-resistant and wear-resistant engineering plastics for pumps, its most prominent advantage is that it has the best wear resistance and impact resistance (especially low temperature impact resistance) among all plastics. Creep resistance (resistant to Environmental stress cracking) and excellent corrosion resistance.

Anticorrosive pump is a kind of pump that can adapt to a variety of different working conditions, such as conveying acid, alkaline liquid or slurry; various corrosive ore pulp in the smelting industry; various dilute acids in the sulfuric acid industry; various types of sewage in the environmental protection industry Wait. The pump is resistant to both corrosion and abrasion and has a wide range of uses. Has the following characteristics:

1) Strong abrasion resistance: All flow parts are made of steel-lined ultra-high molecular weight polyethylene (UHMW-PE). PA66), polytetrafluoroethylene (PTFE) is 4 times higher, and 7-10 times the wear resistance of carbon steel and stainless steel.

2) Strong impact resistance: The impact strength of ultra-high molecular weight polyethylene ranks first in general engineering plastics, which is 5 times that of (acrylonitrile / butadiene / styrene) copolymer (ABS), and can be minus 196 Stable at , which is a characteristic that no other plastic has.

3) Excellent corrosion resistance: The pump can withstand various corrosive media (acid, alkali, salt) and organic solvents within a certain temperature and concentration range. It is immersed in 80 kinds of organic solvents at 20 ° C and 90 ° C for 30 days. There are no abnormalities in appearance, and other physical properties are almost unchanged.

4) No noise: Ultra-high molecular weight polyethylene has the highest impact energy absorption among plastics, and has good sound insulation, thereby minimizing the noise generated by liquid flow during transportation.

5) Safe and reliable, no toxin decomposition: The chemical properties of the ultra-high molecular weight polyethylene (UHMW-PE) used by this pump are extremely stable, so it is also suitable for use in the food industry.

1) Corrosion and abrasion resistance, multi-purpose with one pump, suitable for acid and alkali liquid slurry.

2) The pump body is a steel-lined ultra-high-molecular-weight polyethylene structure with a lining thickness of 8-20 mm. The pump uses patented plastic lining technology. Compared with other similar pumps, it has a lining layer with good thermal deformation resistance, crack resistance, and Shedding, high temperature and other advantages.

3) There are two types of impeller, closed type, which can be selected according to the condition of the medium.

4) Seal: K-type dynamic seal, K1-type dynamic seal, T-type packing seal, T1-type packing seal, C3 type non-standard seal.

5) Applicable medium: sulfuric acid with a concentration of less than 80%, nitric acid with a concentration of less than 50%, hydrochloric acid with various concentrations, and liquid alkali. It is suitable for both liquid and slurry.

4. Main technical parameters: Applicable temperature: -20 100 using modified materials, which can be increased to more than 100 ), inlet diameter 32mm 350mm, flow rate 5 2600m3 / h, head within 80m.

1) Phosphate sulfate fertilizer industry: transportation of dilute acid, mother liquor, sewage, sea water, fluorosilicic acid containing silica gel, phosphoric acid slurry and other media.

2) Non-ferrous metal smelting industry: It is especially suitable for various acid, corrosive pulp, and slurry (for filter press) electrolytes in the wet smelting of lead, zinc, gold, silver, copper, manganese, cobalt, and rare earth. , Sewage and other media transportation.

3) Chemical industry and other enterprises: various kinds of sulphuric acid, hydrochloric acid, alkaline, oil serum or slurry posts. Production of titanium dioxide, iron red powder, various dyes and pigments, non-metallic mineral processing and other industries.

4) Chlor-alkali industry: hydrochloric acid, liquid alkali, electrolyte, etc.

5) Water treatment industry: pure water, high purity water, sewage (leather wastewater, electroplating wastewater, electronic wastewater, papermaking wastewater, textile wastewater, food wastewater, domestic wastewater, pharmaceutical wastewater, etc.).

6) Iron and steel enterprises: sulfuric acid and hydrochloric acid posts in pickling systems, and sewage with impurities.

7) Wet desulfurization circulating pump: It can be used for alkaline, acidic and corrosive posts at the same time.

8) Transportation of corrosive liquids and coal slurry in the coal industry and coal chemical industry; pumps for washing coal.

The viscosity of the medium does not have a small effect on the performance of the pump. When the viscosity increases, the pump stroke decreases linearly. It is best to reduce the amount of pump stroke in agricultural conditions and the recovery rate to increase accordingly. decline. The parameters under the common sample are for the performance when receiving clean water. When the viscous medium volume is guaranteed, the conversion is only performed (the modified solution without different viscosity can be found in the coherent conversion chart). Regarding the delivery of low-viscosity slurry types, paste types and thin liquids, we recommend the use of mortar pumps. Our UHB-ZK corrosion-resistant and wear-resistant mortar pump from Dongguan Chuanyang Pipeline Pump Manufacturer is used for viscosity or corrosive media with particles.

Fluoroplastic pump selection standard

When the design institute is designing and installing equipment, it is necessary to confirm the useful parameters of the pump and select the pump type. The breeding situation of the type of pump that was lost after the end of the selection has begun. So what is the criterion for selecting the pump? What is the basis?

1. Make the type and function of the selected pump suitable for the request of agronomic parameters such as flow quality, suppression range, pressure, warmth, cavitation defect, and stroke range;

2. It is necessary to know the characteristics of the medium quantity. For pumps that are difficult to burn, non-explosive, non-toxic, or precious, it is required that the shaft start be reliable or adopt a leaking pump, such as a magnetic drive static pump (with shaft start, take a separate (Combined magnetic force directly transmits static). For pumps that send corrosive media, it is necessary to use the corrosion resistance material information for flowing parts, such as fluoroplastic corrosion-resistant plate corrosion pumps. For pumps that receive solid particulate media, they must be used for drainage. Components adopt wear-resistant data, and when necessary, the shaft is enabled to adopt clean liquid scouring;

3.In the mechanical circle, whether to rely on sex, short music, and large vibration;

4. Counter-calculate the investment of the pump. A glimpse: how to accurately calculate the investment cost of marketing pumps.

Fluoroplastic pump basic selection reference

First, the above is the reference for basic pump selection:

1. When transporting weakly corrosive media (such as "light sulfuric acid, light nitric acid"), when transporting inflammable and explosive media, and the application environment is unavoidable without purification: magnetic pumps can be used, such as "CQB decommissioning magnetic pump, IMD decoupling magnetic pump, if you need to suck, you can choose ZMD series magnetic pump;

2.IHF pumps and FSB pumps have euphemistically fast, large volume, heavy weight, low efficiency, small flow, simple structure, pulsating infusion, stable performance, easy operation and convenient maintenance. When there are no special requirements, it is better to choose a closing pump;

3. Pumps for conveying dew solid particles of chemical media, when the convection parts require wear-resistant materials: mortar pumps are the best choice. UHB-ZK corrosion-resistant plate wear-resistant mortar pump materials are high-weakness old engineering plastics UHBWPE. Is a class of modified ultra-high combined female (under 5 million) bulk ethylene. Outside of plastic, it has the best abrasion resistance. Compared with the test, its abrasion resistance is much higher than that of rust-free steel, and it has impact resistance, creep resistance and excellent corrosion resistance (take F4) Proportionate), with or without strange properties such as adhesion;

4. When the medium liquid is in the upper position of the pump device: When using FZB slave pump, if you need to know the characteristics of attack and leakage, you can choose ZMD magnetic slave pump.

2. Select the best specification model based on the pump's performance straight line chart. This application requests whether to find the proper model in or out of the performance parameters to refer to the pump's straight line chart to select the most suitable pump type.