Impeller of feeding pump of filter press

Abstract

The utility model discloses a feed pump impeller of a filter press, which comprises an impeller housing main body, an impeller panel is mounted in the impeller housing main body, an impeller stabilizing cover is mounted on one side of the impeller panel, and a detachable structure is arranged between the impeller panel and the impeller stabilizing cover. The center of the surface of the impeller panel is fixedly connected with the center of the surface of the impeller stabilizing cover through a transmission shaft, a fastening shaft ring is arranged at the center of the surface of the impeller stabilizing cover, a first flange plate is arranged on the side surface of the impeller housing body, and the impeller housing body is in sealed connection with an impeller side cover through the first flange plate. And the impeller stabilizing cover is fixedly connected with the impeller panel through a positioning screw. The impeller panel structure convenient to assemble and fix is arranged, the impeller stabilizing cover is installed on the side surface of the impeller panel structure, the safety and stability of the impeller during operation can be improved, meanwhile, the outside of the impeller is subjected to quick-disassembly type sealing protection, and the impeller has the advantages of being tight and stable in connection and convenient to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, in particular to an impeller for a feed pump of a filter press. Background Art

[0002] The impeller is a wheel disc equipped with moving blades, mainly composed of a rear cover, blades, a wheel hub, a front cover, and an impeller sealing ring. It is a component of the impulse steam turbine rotor. The impeller is an important component of the filter press feed pump. The filter press is a filtering mechanical equipment used for solid-liquid separation. It is widely used in chemical, metallurgical, mining, sewage treatment, coal washing, ceramics, inorganic salts, textiles, printing and dyeing, dyes, papermaking, starch, petroleum, sugar making, pharmaceuticals, food, beverages, oils, alcohol and other fields.

[0003] The Chinese authorized patent document with the publication number CN213331667U discloses a filter press feed pump impeller, which belongs to the technical field of feed pump impellers, including a rear plate, an impeller handle, blades and an arc-shaped protrusion, wherein the left middle of the rear plate is provided with an impeller handle, a mounting groove is provided in the impeller handle, a plurality of blades are evenly distributed on the right surface of the rear plate, a front cover is provided on the side of the blade away from the rear plate, and a guide groove is formed between the rear plate, two adjacent blades and the front cover; the outer surface of the rear plate and the outer surface of the front cover are both provided with an arc-shaped protrusion. The utility model can increase the firmness of the rear plate and the front cover by providing the arc-shaped protrusion, prevent the rear plate and the front cover from being deformed due to the stress of the material when drawing materials, and extend the service life of the rear plate and the front cover; by providing the two side edges and the front end of the arc-shaped protrusion as inclined surfaces, the resistance of the arc-shaped protrusion can be reduced, and the resistance of the arc-shaped protrusion can be prevented from being too large to reduce the lift.

[0004] The impeller in the above-mentioned prior art has poor installation stability and cannot be quickly disassembled and repaired inside, so it is necessary to develop a new type of filter press feed pump impeller. Utility Model Content

[0005] The utility model aims to provide a filter press feed pump impeller to solve the problem that the impeller in the prior art proposed in the above background technology has poor installation stability and cannot be quickly disassembled for maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter press feed pump impeller, comprising an impeller cover shell body, an impeller panel is installed inside the impeller cover shell body, an impeller stabilizing cover is installed on one side of the impeller panel, a detachable structure is formed between the impeller panel and the impeller stabilizing cover, and the impeller panel and the impeller stabilizing cover are fixedly connected at the center of the surface by a transmission shaft, a fastening shaft ring is provided at the center of the surface of the impeller stabilizing cover, and the side surface of the fastening shaft ring is fixedly connected to the inner wall of the impeller stabilizing cover through a locking bracket, a first flange is provided on the side surface of the impeller cover shell body, the impeller cover shell body is sealed and connected to the impeller side cover through the first flange, and the impeller stabilizing cover and the impeller panel are fixedly connected by positioning screws.

[0007] Preferably, a second flange is provided on the side surface of the impeller side cover, and the second flange is correspondingly connected to the first flange by bolts.

[0008] Preferably, a first bearing and a second bearing are respectively mounted on the transmission shaft.

[0009] Preferably, the side surface of the impeller side cover is sealed and connected to the shaft protection sleeve via a flange, a sealing cover is installed on the front end surface of the shaft protection sleeve, an axial hole is opened at the center of the surface of the sealing cover, and the bottom of the shaft protection sleeve is fixedly connected to a support plate via bolts.

[0010] Preferably, a support frame is provided at the bottom end of the impeller cover body, the support frame is fixed to the impeller cover body by welding, and a fixing slot hole is provided on the surface of the support frame.

[0011] Preferably, an air inlet is provided on the front end surface of the impeller cover body, and an air outlet duct is installed on the side surface of the impeller cover body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with an impeller panel structure which is convenient for assembly and fixation, and an impeller stabilizing cover is installed on its side surface, and the impeller panel and the impeller stabilizing cover are quickly aligned and fixed by means of positioning screws, and a locking bracket structure is provided on the impeller stabilizing cover, so as to improve the safety and stability of the impeller during operation, and at the same time, the outside of the impeller is quickly sealed and protected, and the cover structure is quickly aligned and installed by means of a flange connection structure, and has the advantages of tight and stable connection, and convenient disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion decomposition structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal installation structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 It is a side structural schematic diagram of the utility model.

[0018] In the figure: 1. air outlet duct; 2. impeller cover body; 3. first flange; 4. support frame; 5. impeller panel; 6. positioning screws; 7. impeller stabilizing cover; 8. locking bracket; 9. fastening shaft ring; 10. support plate; 11. transmission shaft; 12. first bearing; 13. second bearing; 14. sealing cover; 15. shaft protection sleeve; 16. impeller side cover; 17. second flange; 18. air inlet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-4 The utility model provides an embodiment: a filter press feed pump impeller, including an impeller cover body 2, an impeller panel 5 is installed inside the impeller cover body 2, an impeller stabilizing cover 7 is installed on one side of the impeller panel 5, the impeller panel 5 and the impeller stabilizing cover 7 are detachable, and the impeller panel 5 and the impeller stabilizing cover 7 are fixedly connected at the center of the surface by a transmission shaft 11, a fastening collar 9 is provided at the center of the surface of the impeller stabilizing cover 7, the side surface of the fastening collar 9 is fixedly connected to the inner wall of the impeller stabilizing cover 7 by a locking bracket 8, a first flange 3 is provided on the side surface of the impeller cover body 2, the impeller cover body 2 is sealed and connected to the impeller side cover 16 through the first flange 3, and the impeller stabilizing cover 7 and the impeller panel 5 are fixedly connected by positioning screws 6.

[0021] Furthermore, a second flange 17 is provided on the side surface of the impeller side cover 16, and the second flange 17 and the first flange 3 are correspondingly connected by bolts, which has the advantages of stable sealing connection and convenient assembly and disassembly.

[0022] Furthermore, a first bearing 12 and a second bearing 13 are respectively mounted on the transmission shaft 11 , so as to reduce the friction force at the transmission shaft 11 .

[0023] Furthermore, the side surface of the impeller side cover 16 is connected to the shaft protection sleeve 15 through a flange seal, and a sealing cover 14 is installed on the front end surface of the shaft protection sleeve 15. An axial hole is opened at the center of the surface of the sealing cover 14. The bottom of the shaft protection sleeve 15 is fixedly connected to a support plate 10 by bolts, which is used to support and stabilize the bottom of the shaft protection sleeve 15.

[0024] Furthermore, a support frame 4 is provided at the bottom end of the impeller casing body 2. The support frame 4 is fixed to the impeller casing body 2 by welding. A fixing slot is provided on the surface of the support frame 4 for supporting and stabilizing the bottom of the impeller casing body 2.

[0025] Furthermore, an air inlet 18 is provided on the front end surface of the impeller housing body 2, and an air outlet duct 1 is installed on the side surface of the impeller housing body 2, so as to facilitate air inlet and air outlet control.

[0026] Working principle: When in use, the motor drive control transmission shaft 11 is turned on to drive the impeller panel 5 to rotate rapidly. An impeller stabilizing cover 7 is installed on one side of the impeller panel 5. A fastening collar 9 is arranged at the center of the surface of the impeller stabilizing cover 7. The side surface of the fastening collar 9 is fixedly connected to the inner wall of the impeller stabilizing cover 7 through a locking bracket 8. The impeller panel 5 and the impeller stabilizing cover 7 are quickly aligned and fixed by positioning screws 6. The impeller stabilizing cover 7 is provided with a locking bracket 8 structure, which can improve the safety and stability of the impeller panel 5 during operation. A first flange 3 is arranged on the side surface of the impeller cover body 2. The impeller cover body 2 is sealed and connected to an impeller side cover 16 through the first flange 3. A second flange 17 is arranged on the side surface of the impeller side cover 16. The second flange 17 and the first flange 3 are correspondingly connected by bolts. The outside of the impeller is quickly sealed and protected, and the cover structure is quickly aligned and installed using a flange connection structure, which has the advantages of tight and stable connection and convenient disassembly and maintenance.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art. In addition, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description is given here.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter press feed pump impeller, comprising an impeller casing body (2), characterized in that: An impeller panel (5) is installed inside the impeller cover body (2), and an impeller stabilizing cover (7) is installed on one side of the impeller panel (5). The impeller panel (5) and the impeller stabilizing cover (7) are detachable structures, and the impeller panel (5) and the impeller stabilizing cover (7) are fixedly connected at the center of the surface via a transmission shaft (11). A fastening collar (9) is provided at the center of the surface of the impeller stabilizing cover (7), and the side surface of the fastening collar (9) is fixedly connected to the inner wall of the impeller stabilizing cover (7) via a locking bracket (8). A first flange (3) is provided on the side surface of the impeller cover body (2), and the impeller cover body (2) is sealedly connected to an impeller side cover (16) via the first flange (3). The impeller stabilizing cover (7) and the impeller panel (5) are fixedly connected via positioning screws (6).

2. A filter press feed pump impeller according to claim 1, characterized in that: A second flange (17) is provided on the side surface of the impeller side cover (16), and the second flange (17) and the first flange (3) are correspondingly connected via bolts.

3. The filter press feed pump impeller according to claim 1, characterized in that: The transmission shaft (11) is respectively provided with a first bearing (12) and a second bearing (13).

4. The filter press feed pump impeller according to claim 1, characterized in that: The side surface of the impeller side cover (16) is sealedly connected to a shaft protection sleeve (15) via a flange, a sealing cover (14) is installed on the front end surface of the shaft protection sleeve (15), an axial hole is opened at the center of the surface of the sealing cover (14), and the bottom of the shaft protection sleeve (15) is fixedly connected to a support plate (10) via bolts.

5. The filter press feed pump impeller according to claim 1, characterized in that: A support frame (4) is provided at the bottom end of the impeller casing body (2); the support frame (4) and the impeller casing body (2) are fixed by welding; and a fixing slot hole is provided on the surface of the support frame (4).

6. The filter press feed pump impeller according to claim 1, characterized in that: The front end surface of the impeller casing body (2) is provided with an air inlet (18), and the side surface of the impeller casing body (2) is installed with an air outlet duct (1).

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