CN202108775U

CN202108775U - Slurry pump

Info

Publication number: CN202108775U
Application number: CN2011201846300U
Authority: CN
Inventors: 李国中
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-02
Filing date: 2011-06-02
Publication date: 2012-01-11
Anticipated expiration: 2021-06-02

Abstract

The utility model relates to a slurry pump, particularly to a feed pump for a filter press in the coal washing industry, which comprises a bracket, wherein the bracket supports the pump body; the pump body comprises an impeller, a spindle and a pump shell, wherein the slurry pump is characterized in that: the pump shell comprises a suction chamber, a first-stage pump shell and a second-stage pump shell connected end to end; a first-stage impeller is arranged in the first-stage pump shell; a second-stage impeller is arranged in the second-stage pump shell; the first-stage impeller and the second-stage impeller are installed oppositely; a feeding hole is formed on the sidewall of the suction chamber; a suction chamber outlet is formed on the tail end face of the suction chamber; the suction chamber outlet is communicated with a first-stage pump shell inlet formed on the front end face of the first-stage pump shell; a first-stage pump shell outlet is formed on the sidewall of the first-stage pump shell; the outlet direction is set along the tangent direction of the wall of the first-stage pump shell; the first-stage pump shell outlet is communicated with a second-stage pump shell inlet formed on the outer end face of the second-stage pump shell; a discharge hole is formed on the sidewall of the second-stage pump shell; the surfaces of the first-stage impeller and the second-stage impeller are designed in twisty shape; and the impeller surfaces in twisty shape can reduce the resistance caused when the fluid flows through the impeller, save energy and increase the efficiency.

Description

A kind of slag stock pump

Technical field

The utility model relates to a kind of slag stock pump, particularly a kind of charging pump that is used for the coal washing industry pressure filter.

Background technique

At present, the charging pump that the coal washing industry pressure filter is used, the blade face of its impeller is straight blade face, and the Flow of Goods and Materials resistance is bigger, and air horsepower requires high, and energy consumption is big.

The model utility content

The utility model technical issues that need to address provide a kind of slag stock pump, improve through the blade face structure of existing impeller, reduce the Flow of Goods and Materials resistance, reduce air horsepower, reduce energy consumption.

For solving the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of slag stock pump comprises carriage; The bracket support pump housing, the pump housing comprise impeller, main shaft and pump case, and pump case is fixed on the carriage front end; Carriage is through the rotary pair supports main shaft, and the front-end of spindle assembling is arranged on the impeller of pump case inner chamber, the terminal coupling that passes through connects motor, and said pump case comprises suction chamber, one-level pump case and secondary pump case; The three is the cylinder type housing, and its end face head and the tail connect successively, be provided with in the one-level pump case in one-level impeller, the secondary pump case sencond stage impeller is set; The I and II impeller is installed relatively; The suction chamber sidewall is offered material feeding mouth, and the suction chamber terminal surface is axially established the suction chamber outlet, and the suction chamber outlet is communicated with the import of one-level pump case, the one-level pump case sidewall that are opened in one-level pump case front-end face the outlet of one-level pump case is set; The outlet of one-level pump case is communicated with the secondary pump case import that is arranged on secondary pump case exterior edge face through connecting tube, and the sidewall of secondary pump case is offered discharge port;

The blade face of said one-level impeller and sencond stage impeller is designed to twisted shape.

The further improvement of the utility model is:

Said one-level pump case Way out is provided with along one-level pump house wall tangent direction.

The suction chamber front end is provided with shaft sealing, and said shaft sealing comprises the axle sleeve that cooperates with main shaft, and sleeve outer surface cooperates two outside framework oil seals, and the space between two outside framework oil seals is a seal ring, stores lubricating grease, the stuffing box packing of outside framework oil seal arranged outside in the seal ring.

Because the technological progress of having adopted technique scheme, the utility model to obtain is:

The utility model is designed to twist the blade face with the blade face of impeller, and resistance, energy saving in the time of can reducing fluid through impeller are raised the efficiency.

One-level pump case Way out is provided with along the pump house wall tangent direction, and the outlet of one-level pump case connects pipe, meets the water conservancy characteristic of fluid, has reduced fluid at the endoceliac resistance of pump, the favourable air horsepower that reduces.

Suction chamber, one-level pump case and secondary pump case head and the tail are connected successively, and the I and II impeller is installed relatively, when impeller is worked, makes suction chamber form relative negative pressure, makes the axial seal of water pump easier.

Drip ring and two filled multi-sealed forms of outside framework oil seal are adopted in shaft sealing, make axial sealing effect better.

Description of drawings

Fig. 1 is a kind of structural representation plan view of slag stock pump;

Fig. 2 is a kind of structural representation plan view of slag stock pump;

Fig. 3 is a kind of structural representation left view of slag stock pump;

Fig. 4 is the A enlarged view of Fig. 1;

Fig. 5 is the B enlarged view of Fig. 1.

Wherein: 1, secondary pump case, 1-1, discharge port, 2, the one-level pump case, 2-1, the outlet of one-level pump case, 3, sencond stage impeller; 4, one-level impeller, 5, suction chamber, 5-1, material feeding mouth, 6, backplate, 7, main shaft; 8, sub-propeller, 9, sealing cover, 10, axle sleeve, 11, connecting tube, 12, drip ring; 13, Gland, 14, carriage, 15, outside framework oil seal, 16, stuffing box packing.

Embodiment

Below in conjunction with accompanying drawing the utility model is explained further details:

Fig. 1,2,3, shown in 4 or 5, the utility model comprises carriage 14, carriage 14 supports the pump housings; The pump housing comprises impeller, main shaft 7 and pump case, and pump case is fixed on carriage 14 front ends, and carriage 14 is through rotary pair supports main shaft 7; The assembling of main shaft 7 front ends is arranged on the impeller of pump case inner chamber, the terminal coupling that passes through connects motor; Said pump case comprises suction chamber 5, one-level pump case 2 and secondary pump case 1, and the three is the cylinder type housing, and its end face head and the tail connect successively; Be provided with in the one-level pump case 2 in one-level impeller 4, the secondary pump case 1 sencond stage impeller 3 is set, I and II

impeller

4,3 is installed relatively;

The blade face of said one-level impeller 4, secondary pump case 1 is designed to distorted shape;

Suction chamber 5 sidewalls are offered material feeding mouth 5-1; Suction chamber 5 terminal surfaces are axially established the suction chamber outlet; The suction chamber outlet is communicated with the import of one-level pump case, the one-level pump case sidewall that are opened in one-level pump case front-end face one-level pump case outlet 2-1 is set, and one-level pump case outlet 2-1 is communicated with the secondary pump case import that is arranged on secondary pump case exterior edge face through connecting tube 11, and the sidewall of secondary pump case is offered discharge port 1-1; Said suction chamber 5 front ends are provided with shaft sealing; Said shaft sealing comprises the axle sleeve 10 that cooperates with main shaft 7, and it is seal ring 12 that axle sleeve 10 outer surfaces cooperate the space between 15, two outside framework oil seals 15 of two outside framework oil seals; Store lubricating grease, outside framework oil seal 15 arranged outside stuffing box packing 16 in the seal ring 12.

One-level pump case outlet 2-1 is provided with along one-level pump house wall tangent direction, and one-level pump case outlet 2-1 connects pipe 11.

Claims

1. a slag stock pump comprises carriage, the bracket support pump housing; The pump housing comprises impeller, main shaft and pump case, and pump case is fixed on the carriage front end, and carriage is through the rotary pair supports main shaft; The front-end of spindle assembling is arranged on the impeller of pump case inner chamber, the terminal coupling that passes through connects motor, and it is characterized in that: said pump case comprises suction chamber, one-level pump case and secondary pump case, and the three is the cylinder type housing; Its end face head and the tail connect successively; Be provided with in the one-level pump case in one-level impeller, the secondary pump case sencond stage impeller is set, the I and II impeller is installed relatively, and the suction chamber sidewall is offered material feeding mouth; The suction chamber terminal surface is axially established the suction chamber outlet; The suction chamber outlet is communicated with the import of one-level pump case, the one-level pump case sidewall that are opened in one-level pump case front-end face the outlet of one-level pump case is set, and the outlet of one-level pump case is communicated with the secondary pump case import that is arranged on secondary pump case exterior edge face through connecting tube, and the sidewall of secondary pump case is offered discharge port;

2. a kind of slag stock pump according to claim 1 is characterized in that: said one-level pump case Way out is provided with along one-level pump house wall tangent direction.

3. a kind of slag stock pump according to claim 1; It is characterized in that: said suction chamber front end is provided with shaft sealing; Said shaft sealing comprises the axle sleeve that cooperates with main shaft, and sleeve outer surface cooperates two outside framework oil seals, and the space between two outside framework oil seals is a seal ring; Store lubricating grease, the stuffing box packing of outside framework oil seal arranged outside in the seal ring.