Novel slurry press filter pump

Abstract

The utility model relates to the technical field of filter pressing pumps, in particular to a novel slurry filter pressing pump. Comprising a pump body, an impeller nut, an impeller, a pump cover, a mechanical sealing component, a bearing end cover, an anti-rotation chuck, a bearing and a shaft body, the shaft body is installed in the middle of the pump body and divided into a shaft body front end and a shaft body rear end, the impeller is installed at the shaft body front end through the impeller nut, the anti-rotation chuck is installed on the impeller nut, and the bearing end cover is installed on the bearing. The pump cover is installed between the front end of the shaft body and the pump body, a mechanical sealing part is installed between the front end of the shaft body and the pump cover, the bearing end cover is installed between the rear end of the shaft body and the pump body, the bearing end cover is installed on the pump body through bolts, and a plurality of bearings are installed between the rear end of the shaft body and the pump body. The anti-rotation chuck and the anti-rotation bolt are additionally arranged, so that the risk that the impeller and the seal are damaged due to reverse rotation of the pump is reduced; therefore, the problem that the spring is blocked by the materials is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter press pumps, and more specifically to a novel slurry pressure filter pump. Background Art

[0002] Slurry hydraulic filter pumps have a wide range of applications. They are mechanical equipment that provides power for the transportation, transfer, transfer, concentration, and filtration of abrasive slurries and slurries between various production processes. In the mining industry, slurry hydraulic filter pumps are not only used to transport tailings and waste, but also to transport flotation liquid in the mineral processing process and mortar in the grinding process. In the chemical industry, the pump can be used to transport solutions containing solid particles, such as abrasive slurries such as sulfuric acid and nitric acid. In addition, slurry hydraulic filter pumps can also be used in the metallurgical industry to transport metallurgical molten slag, coolant, etc.

[0003] The slurry filter pump uses the centrifugal force generated by the rotation of the impeller. The pump body generates a vacuum through the rotation of the impeller, so that the liquid is sucked into the pump, allowing the material to enter the sealed chamber to achieve the purpose of conveying the solid-liquid mixed medium. However, during use, the material in the sealed chamber will pass through the impeller and enter the sealed chamber, causing the pump to reverse and damage the impeller and sealing components, reducing the service life of the water pump. At the same time, the material may contact the spring, causing the spring to be blocked and the pump body to stop working.

[0004] Therefore, it is an urgent problem for technicians in this field to provide a new type of slurry filter pump that can reduce the wear of the sealing component and prevent the pump body from reversing. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide a novel slurry filter pump which can prevent the pump body from reversing, reduce material wear and tear on the sealing components, and extend the service life.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, which mainly include:

[0007] A new type of slurry pressure filter pump includes a pump body, an impeller nut, an impeller, a pump cover, a mechanical sealing component, a bearing end cover, an anti-rotation chuck and a shaft body. The shaft body is installed in the middle of the pump body, and the shaft body is divided into a front end and a rear end of the shaft body. The impeller is installed at the front end of the shaft body through the impeller nut, and the anti-rotation chuck is installed on the impeller nut. The pump cover is installed between the front end of the shaft body and the pump body, and a mechanical sealing component is installed between the front end of the shaft body and the pump cover. The bearing end cover is installed between the rear end of the shaft body and the pump body, and the bearing end cover is installed on the pump body through bolts.

[0008] Preferably, the mechanical sealing component includes a spring seat, a stationary ring seat, a dynamic ring seat, a seal, a spring, a dynamic ring, a stationary ring, a sleeve and a sealing end cover, the sealing end cover is installed on the pump cover by bolts, the front end of the shaft body is wrapped with a sleeve on the outside, a seal is provided between the sleeve and the sealing end cover, a spring seat is provided between the seal and the pump cover, a spring is installed on the spring seat, a stationary ring seat is provided between the spring seat and the pump cover, a dynamic ring seat is provided between the stationary ring seat and the impeller, a stationary ring is installed between the stationary ring seat and the dynamic ring seat, and a dynamic ring is installed between the dynamic ring seat and the impeller.

[0009] Preferably, a skeleton oil seal is provided between the sealing end cover and the shaft sleeve.

[0010] Preferably, a skeleton oil seal is provided between the bearing end cover and the rear end of the shaft body.

[0011] Preferably, a bearing seat is installed between the rear bearing and the outside of the pump body.

[0012] Preferably, the anti-rotation chuck is mounted on the impeller nut via an anti-rotation bolt.

[0013] Preferably, a front bearing is installed on one side of the rear end of the shaft body close to the bearing end cover, and a plurality of rear bearings are installed on the other side of the rear end of the shaft body.

[0014] It can be seen from the above technical solution that compared with the prior art, the impeller nut of the utility model adds an anti-rotation chuck and an anti-rotation bolt to reduce the risk of pump reversal damaging the impeller and seal; a mechanical sealing component is provided between the shaft and the pump body, and only the dynamic and static rings of the mechanical seal contact the material, and the spring does not contact the material, thereby solving the problem of the spring not working due to the material contacting the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the mechanical sealing component of the utility model.

[0018] Explanation of the reference numerals: 1-pump body, 2-impeller nut, 3-impeller, 4-pump cover, 5-stationary ring seat, 6-spring seat, 7-seal, 8-sealing end cover, 9-skeleton oil seal, 10-shaft sleeve, 11-bearing end cover, 12-front bearing, 13-rear end of the shaft body, 14-bearing seat, 15-shaft body, 16-front end of the shaft body, 17-spring, 18-moving ring seat, 19-stationary ring, 20-moving ring, 21-anti-rotation chuck, 22-anti-rotation bolt, 23-rear bearing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] A new type of slurry filter pump, such as Figure 1 to Figure 2 As shown, it includes a pump body 1, an impeller nut 2, an impeller 3, a pump cover 4, a mechanical sealing component, a bearing end cover 11, an anti-rotation chuck 21 and a shaft body 15, wherein the shaft body 15 is installed in the middle of the pump body 1, and the shaft body 15 is divided into a shaft body front end 16 and a shaft body rear end 13, the impeller 3 is installed on the shaft body front end 16 through the impeller nut 2, and the impeller nut 2 is installed with the anti-rotation chuck 21, the pump cover 4 is installed between the shaft body front end 16 and the pump body 1, and a mechanical sealing component is installed between the shaft body front end 16 and the pump cover 4, the bearing end cover 11 is installed between the shaft body rear end 13 and the pump body 1, and the bearing end cover 11 is installed on the pump body 1 by bolts.

[0022] In order to further optimize the above scheme, the mechanical sealing component includes a spring seat 6, a stationary ring seat 5, a dynamic ring seat 18, a seal 7, a spring 17, a dynamic ring 20, a stationary ring 19, a sleeve 10 and a sealing end cover 8, wherein the sealing end cover 8 is mounted on the pump cover 4 by bolts, the front end 16 of the shaft body is wrapped with a sleeve 10, a seal 7 is arranged between the sleeve 10 and the sealing end cover 8, a spring seat 6 is arranged between the seal 7 and the pump cover 4, a spring 17 is installed on the spring seat 6, a stationary ring seat 5 is arranged between the spring seat 6 and the pump cover 4, a dynamic ring seat 18 is arranged between the stationary ring seat 5 and the impeller 3, a stationary ring 19 is installed between the stationary ring seat 5 and the dynamic ring seat 18, and a dynamic ring 20 is installed between the dynamic ring seat 18 and the impeller 3.

[0023] In order to further optimize the above solution, a front bearing 12 is installed on one side of the rear end 13 of the shaft body close to the bearing end cover 11, and a plurality of rear bearings 23 are installed on the other side of the rear end 13 of the shaft body.

[0024] In order to further optimize the above solution, a skeleton oil seal 9 is provided between the sealing end cover 8 and the shaft sleeve 10 to separate the front end 16 of the shaft body from the interior of the pump body 1 to prevent external dust, impurities, etc. from entering the mechanical sealing components.

[0025] In order to further optimize the above solution, a skeleton oil seal 9 is provided between the bearing end cover 11 and the rear end 13 of the shaft body.

[0026] In order to further optimize the above solution, a bearing seat 14 is installed between the rear bearing 23 and the outside of the pump body 1 to reduce friction and wear of the bearing 12 .

[0027] In order to further optimize the above solution, the anti-rotation chuck 21 is installed on the impeller nut 2 through the anti-rotation bolt 22.

[0028] In order to further optimize the above scheme, the gap between the back blade of the impeller 3 and the pump body 1 is between 0.75 and 1.00 mm, which greatly reduces the material entering the sealing cavity and solves the disadvantage of the seal being worn by the material.

[0029] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new type of slurry filter pump, characterized in that: It includes a pump body, an impeller nut, an impeller, a pump cover, a mechanical sealing component, a bearing end cover, an anti-rotation chuck and a shaft body. The shaft body is installed in the middle of the pump body, and the shaft body is divided into a front end and a rear end of the shaft body. The impeller is installed at the front end of the shaft body through the impeller nut, and the anti-rotation chuck is installed on the impeller nut. The pump cover is installed between the front end of the shaft body and the pump body, and a mechanical sealing component is installed between the front end of the shaft body and the pump cover. The bearing end cover is installed between the rear end of the shaft body and the pump body, and the bearing end cover is installed on the pump body through bolts.

2. A new type of slurry filter pump according to claim 1, characterized in that: The mechanical sealing component includes a spring seat, a stationary ring seat, a dynamic ring seat, a seal, a spring, a dynamic ring, a stationary ring, a sleeve and a sealing end cover. The sealing end cover is installed on the pump cover by bolts. The front end of the shaft body is wrapped with a sleeve. A seal is provided between the sleeve and the sealing end cover. A spring seat is provided between the seal and the pump cover. A spring is installed on the spring seat. A stationary ring seat is provided between the spring seat and the pump cover. A dynamic ring seat is provided between the stationary ring seat and the impeller. A stationary ring is installed between the stationary ring seat and the dynamic ring seat. A dynamic ring is installed between the dynamic ring seat and the impeller.

3. A new type of slurry filter pump according to claim 2, characterized in that: A skeleton oil seal is arranged between the sealing end cover and the shaft sleeve.

4. A novel slurry filter pump according to claim 1, characterized in that: A skeleton oil seal is arranged between the bearing end cover and the rear end of the shaft body.

5. A novel slurry filter pump according to claim 1, characterized in that: A front bearing is installed on one side of the rear end of the shaft body close to the bearing end cover, and a plurality of rear bearings are installed on the other side of the rear end of the shaft body.

6. A novel slurry filter pump according to claim 5, characterized in that: A bearing seat is installed between the rear bearing and the outside of the pump body.

7. A novel slurry filter pump according to claim 1, characterized in that: The anti-rotation chuck is mounted on the impeller nut via an anti-rotation bolt.

Images