CN218563988U - Sealed pulping medium-concentration pump - Google Patents

Abstract

The utility model discloses a dense pump in sealed slurrying, including the pump body and demountable installation in the rear end cap of pump body one side, the delivery port has been seted up between two parties on the top of the pump body, and the pump body keeps away from one side of rear end cap and has seted up the water inlet between two parties, the through-hole that supplies transmission assembly fixed mounting is seted up at the center that pump body one side was kept away from to the rear end cap, and transmission assembly includes welded fastening in the mechanical seal spare in the through-hole, the mechanical seal spare internal rotation is provided with the transmission shaft, and mechanical seal spare has been supported towards one side of water inlet and has been connect the cover and locate the epaxial protection component of transmission, protection component includes the lantern ring and a plurality of is the internal thread seat of fixed welding on lantern ring inner edge face of annular array. This concentrated pump in sealed slurrying possesses protective structure, can carry out the separation to solid particle, can prevent that quick reduction from appearing in mechanical seal's sealing performance and even lose the condition emergence of sealed effect, guarantee user's normal use, and the practicality is stronger.

Description

Sealed pulping medium-concentration pump

Technical Field

The utility model belongs to the technical field of papermaking equipment, concretely relates to thick pump in sealed slurrying.

Background

The medium-consistency pulp pump is important process equipment in a chlorine-free bleaching or chlorine-less bleaching process in the papermaking and pulping industry, and is used for conveying medium-consistency pulp with the concentration of more than 8 percent and no flowability to realize the medium-consistency bleaching process.

The dynamic seal between the main shaft and the shell of the traditional medium-consistency pulp pump mainly adopts two sealing modes. One is soft packing sealing, the method has simple structure, low processing requirement on parts and low manufacturing cost, but has the defects that the packing is easy to abrade due to the high-speed rotation of the main shaft, the main shaft is easy to abrade, and simultaneously, higher power is consumed, so that the efficiency of the pump is reduced; the other one is mechanical seal, the method has the advantages of good sealing performance, basically no power consumption, high pump efficiency and the defects of more complex structure, higher requirements on part processing, high requirements on installation, high manufacturing cost and high replacement cost of easily damaged parts.

It may cause damage to the sealing surface of the mechanical seal due to the presence of small amounts of solid particles in the medium consistency pulp. The sealing performance of the mechanical seal is reduced rapidly and even the sealing effect is lost, and the normal use of a user is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dense pump in sealed slurrying to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme does:

a sealed pulping medium consistency pump comprises a pump body and a rear end cover which is detachably arranged on one side of the pump body;

a water outlet is formed in the middle of the top end of the pump body, and a water inlet is formed in the middle of one side, far away from the rear end cover, of the pump body;

a through hole for fixedly installing a transmission assembly is formed in the center of one side, away from the pump body, of the rear end cover, the transmission assembly comprises a mechanical sealing element fixed in the through hole in a welding mode, a transmission shaft is arranged in the mechanical sealing element in a rotating mode, and a protection assembly sleeved on the transmission shaft is connected to one side, facing the water inlet, of the mechanical sealing element in a butting mode;

the protective component comprises a lantern ring and a plurality of inner wire seats which are in annular array fixed welding on the inner edge surface of the lantern ring, the inner wire seats are fixedly welded with mounting rings, and the wear-resistant rubber rings abutted to the outer edge surface of the attached transmission shaft are installed in the mounting rings in an interference fit mode.

Furthermore, one side of the mechanical sealing element, which is far away from the water inlet, is abutted with a fixing ring sleeved on the transmission shaft, and one side of the fixing ring is provided with a plurality of through holes in an annular array.

Further, a plurality of bolts are movably arranged in the through holes, and one side of the mechanical sealing element is matched with the bolts to form a plurality of through holes in an annular array.

Furthermore, an inner screw hole is formed in the middle of one side of the inner screw seat, and one end of the bolt penetrating through the through hole is connected into the inner screw hole in a threaded mode.

Furthermore, the water outlet and the water inlet are internally and fixedly provided with water pipes, and one ends of the water pipes far away from the pump body are respectively provided with a flange plate in a welded and fixed mode.

Furthermore, fixing seats are constructed on two sides of the bottom end of the pump body, and two through grooves are symmetrically formed in the top ends of the fixing seats.

Compared with the prior art, the utility model discloses following beneficial effect has:

thanks to the arrangement of the pump body and the rear end cover provided with the transmission assembly, the wear-resistant rubber ring arranged in the mounting ring can block solid particles to prevent the solid particles from entering a joint of the transmission shaft and the mechanical sealing element as far as possible, so that the situation that the sealing performance of the mechanical sealing element is rapidly reduced or even the sealing effect is lost is prevented, and the normal use of a user is ensured;

benefit from the setting of rear end housing and drive assembly, through taking off the rear end housing by drive assembly to twist out in having a plurality of interior screw seats respectively with a plurality of bolts, thereby remove the fixed to protection component, so that the staff changes the wear-resisting rubber ring that sets up in to the installation ring, convenient to use, easy operation, the practicality is stronger.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic exploded view of the transmission assembly of the present invention;

fig. 3 is a schematic view of the protection assembly according to the present invention.

In the figure: 1. a pump body; 2. a rear end cap; 3. a transmission assembly; 301. a mechanical seal; 302. a fixing ring; 303. a drive shaft; 4. a guard assembly; 401. a collar; 402. an inner wire seat; 403. a mounting ring; 404. a wear-resistant rubber ring; 5. a water pipe; 6. a flange plate; 7. a fixed seat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1, fig. 2, fig. 3, a sealed thick pump in slurrying, including the pump body 1 and demountable installation in the rear end cap 2 of pump body 1 one side, the delivery port has been seted up between two parties to the top of the pump body 1, and the pump body 1 has been seted up between two parties in one side of rear end cap 2, the through-hole that supplies transmission assembly 3 fixed mounting is seted up at the center that rear end cap 2 kept away from pump body 1 one side, and transmission assembly 3 includes welded fastening in the mechanical seal 301 in the through-hole, the mechanical seal 301 internal rotation is provided with transmission shaft 303, and one side butt joint of mechanical seal 301 towards the water inlet has the protection component 4 of cover locating on transmission shaft 303, protection component 4 includes lantern ring 401 and a plurality of be the fixed internal thread seat 402 that welds on lantern ring 401 inner thread seat 402, and a plurality of welded fastening has mounting ring 403 between the internal thread seat 402, and interference fit installs the wear-resistant rubber ring 404 that butt joint has laminating transmission shaft 303 outer fringe face in mounting ring 403, can carry out the separation to solid particle through wear-resistant rubber ring 404 that mounting ring 403 inside sets up to prevent it from getting into the seam department of transmission shaft 303 and mechanical seal 301 as far as possible, thereby prevent that the sealing performance from losing the sealing performance from taking place the normal condition that the sealing from taking place, the user from taking place.

As shown in fig. 1 and 2, wherein, one side butt joint that mechanical seal 301 kept away from the water inlet has set up the solid fixed ring 302 of cover on locating transmission shaft 303, and one side of solid fixed ring 302 is annular array and has seted up a plurality of through-holes, and is a plurality of bolts that all move about in the through-hole, and one side cooperation a plurality of bolts of mechanical seal 301 is annular array and has seted up a plurality of through-holes, interior screw hole has been seted up between two parties to one side of interior screw seat 402, and the bolt passes one end threaded connection of through-hole in interior screw hole, through taking off rear end cap 2 from transmission assembly 3 to screw out in having a plurality of interior screw seats 402 respectively with a plurality of bolts, thereby remove the fixed to protective component 4, so that the staff changes the abrasive rubber ring 404 that sets up in collar 403, convenient to use, easy operation, the practicality is stronger.

As shown in fig. 1, a water pipe 5 is fixedly installed in each of the water outlet and the water inlet, a flange 6 is fixedly welded to one end of the water pipe 5 away from the pump body 1, fixing seats 7 are constructed on both sides of the bottom end of the pump body 1, two through grooves are symmetrically formed in the top end of each fixing seat 7, and screws prepared in advance are screwed into the through grooves in the two fixing seats 7 respectively and screwed into designated positions, so that the middle concentration pump can be fixed.

The working principle is as follows: this concentrated pump in sealed slurrying, during the use, will be used for carrying the pipeline of liquid to switch on respectively in two water pipes 5 through two ring flanges 6, thereby the start-up is used for driving transmission shaft 303 pivoted motor, can start pump body 1 entering operating condition, the solid particle that wraps up under the palm in the liquid can carry out the separation to it through wear-resisting rubber ring 404, thereby prevent its seam crossing that gets into transmission shaft 303 and mechanical seal 301, take place with the condition that prevents that mechanical seal's sealing performance from appearing reducing fast or even losing sealed effect, guarantee user's normal use, when maintaining, the accessible is gone up rear end housing 2 by drive assembly 3 and is taken off, and have a plurality of bolts to twist out in having a plurality of interior screw bases 402 respectively, thereby relieve the fixed to protection component 4, so that the staff changes wear-resisting rubber ring 404 that sets up in the collar 403, high durability and convenient use, and simple operation, and high practicability.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A sealed pulping medium consistency pump comprises a pump body (1) and a rear end cover (2) which is detachably arranged on one side of the pump body (1);

the method is characterized in that: a water outlet is formed in the middle of the top end of the pump body (1), and a water inlet is formed in the middle of one side, away from the rear end cover (2), of the pump body (1);

a through hole for fixedly installing the transmission assembly (3) is formed in the center of one side, away from the pump body (1), of the rear end cover (2), the transmission assembly (3) comprises a mechanical sealing element (301) fixed in the through hole in a welding mode, a transmission shaft (303) is rotatably arranged in the mechanical sealing element (301), and a protection assembly (4) sleeved on the transmission shaft (303) is abutted to one side, facing the water inlet, of the mechanical sealing element (301);

protection subassembly (4) are the interior silk seat (402) of fixed welding on the border face in lantern ring (401) including lantern ring (401) and a plurality of annular array, and are a plurality of welded fastening has collar (403) between interior silk seat (402), and interference fit installs wear-resisting rubber ring (404) that have the butt joint to have laminating transmission shaft (303) outer border face in collar (403).

2. The sealed pulping medium consistency pump of claim 1, characterized in that: one side of the mechanical sealing element (301) far away from the water inlet is connected with a fixing ring (302) sleeved on the transmission shaft (303) in a butting mode, and one side of the fixing ring (302) is provided with a plurality of through holes in an annular array mode.

3. The sealed pulping medium consistency pump of claim 2, characterized in that: a plurality of bolts are movably arranged in the through holes, and one side of the mechanical sealing element (301) is matched with the bolts to form a plurality of through holes in an annular array.

4. The sealed pulping medium consistency pump of claim 3, characterized in that: an inner screw hole is formed in the middle of one side of the inner screw seat (402), and one end of a bolt penetrating through the through hole is connected into the inner screw hole in a threaded mode.

5. The sealed pulping medium consistency pump of claim 1, characterized in that: the water outlet and the water inlet are internally and fixedly provided with water pipes (5), and the flange plates (6) are welded and fixed at the ends, far away from the pump body (1), of the water pipes (5).

6. The sealed pulping medium consistency pump of claim 1, characterized in that: fixing seats (7) are constructed on two sides of the bottom end of the pump body (1), and two through grooves are symmetrically formed in the top ends of the fixing seats (7).

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