Corrosion-resistant and wear-resistant slurry pump

Abstract

The utility model relates to the technical field of slurry pumps, and discloses a corrosion-resistant and wear-resistant slurry pump which comprises a base, a rear shell is fixedly connected to the top of the base, a motor cover is fixedly connected to the rear side of the rear shell, a servo motor is fixedly connected to the interior of the motor cover, a wall scraping mechanism is fixedly connected to the front end of the servo motor, and a water pumping opening is formed in the left side of the rear shell. The front side of the rear shell body is provided with a front shell body, the front end of the front shell body is fixedly connected with a connecting disc, a filtering mechanism is clamped in the connecting disc, a sealing gasket is arranged between the rear shell body and the front shell body, and the edge of the rear shell body is fixedly connected with the edge of the front shell body through screws. And part of viscous substances in the pumped slurry are prevented from being attached to the inner wall of the shell to cause corrosion, large-particle impurities mixed in the slurry can be filtered out through the filtering mechanism before the slurry is pumped in, and the situation that the service life is affected due to the fact that the large-particle impurities collide and are abraded with an internal structure after the large-particle impurities are pumped in is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry pumps, in particular to a corrosion-resistant and wear-resistant slurry pump. Background Art

[0002] A slurry pump is a common pump in industrial and mining production. It is used to transport slurry containing particulate solids, mainly for the beneficiation of iron ore, copper ore, aluminum ore, gold ore, etc.; as well as for coal washing in coal washing plants, power plants, cement building materials, etc. It provides power for the transportation, transmission, transfer, concentration, and filtration of abrasive slurries and slurries between various production process steps. The centrifugal force generated by the high-speed rotation of the impeller enables the fluid to gain energy, that is, after the fluid passes through the impeller, the pressure energy and kinetic energy can be increased, so that it can be transported to a high or distant place. During the transportation process, because there are many particles in the slurry, it will cause wear to the inside of the pump body, affecting the service life of the device, and some slurries are corrosive, and some corrosive substances will remain in the pump body, causing corrosion of the inner wall. In this regard, this case provides a corrosion-resistant and wear-resistant slurry pump to improve it. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The purpose of the utility model is to provide a corrosion-resistant and wear-resistant slurry pump to solve the problem in the above-mentioned background technology that it is inconvenient to adjust the safety protection range according to different usage scenarios and usage requirements.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrosion-resistant and wear-resistant slurry pump, comprising a base, a rear shell body fixedly connected to the top of the base, a motor cover fixedly connected to the rear side of the rear shell body, a servo motor fixedly connected to the inside of the motor cover, a wall scraping mechanism fixedly connected to the front end of the servo motor, a water suction port provided on the left side of the rear shell body, a front shell body provided on the front side of the rear shell body, a connecting disk fixedly connected to the front end of the front shell body, and a filtering mechanism clamped inside the connecting disk.

[0007] Preferably, the front end of the motor cover is fixedly connected to the rear side of the rear shell by screws, the water suction port is symmetrically arranged on the left side of the rear shell and the front shell, a sealing gasket is arranged between the rear shell and the front shell, and the edges of the rear shell and the front shell are fixedly connected by screws.

[0008] Preferably, the wall scraping mechanism includes a transmission shaft, which is fixedly connected to the front end of the servo motor shaft, a connecting ring is fixedly connected to the middle of the transmission shaft, an arc-shaped scraper blade is fixedly connected to the outer side of the connecting ring, a rear scraper blade is fixedly connected to the rear side of the arc-shaped scraper blade, and an impeller is plugged into the front end of the transmission shaft.

[0009] Preferably, the wall scraping mechanism is arranged inside the rear shell and the front shell, the number of the arc-shaped scraping blades is six, and the six arc-shaped scraping blades are equidistantly fixedly connected to the outside of the connecting ring.

[0010] Preferably, the arc scraper blade and the rear scraper blade are arc-shaped on the left and right sides, the outer side of the arc scraper blade is attached to the inner wall of the rear shell and the front shell, the rear side of the rear scraper blade is attached to the rear side of the rear shell, and the impeller surface is sprayed with a corrosion-resistant coating.

[0011] Preferably, the filtering mechanism comprises a circular groove, which is arranged on the front side of the connecting plate, a circular ring is clamped inside the circular groove, a filter cover is fixedly connected to the rear side of the circular ring, an insertion rod is fixedly connected to the rear edge of the circular ring at equal distances, and a fixing ring is arranged on the front side of the circular ring.

[0012] Preferably, the circular groove, the circular ring and the fixed ring have the same diameter, a plug hole is provided inside the circular groove, the plug rod is plugged into the plug hole inside the circular groove, and the filter cover is made of corrosion-resistant material.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can scrape the inner wall of the casing through the scraping mechanism when the impeller is pumping slurry, so as to prevent some viscous substances in the pumped slurry from adhering to the inner wall of the casing. The attached substances are difficult to handle for a long time and will cause corrosion to the inner wall of the casing, thereby affecting the service life of the casing. At the same time, the rear scraper arranged on the rear side of the arc top scraper can prevent the slurry from accumulating on the rear side of the rear shell, preventing corrosion and preventing impurities from blocking the rotating shaft. The corrosion-resistant coating arranged on the surface of the impeller can also increase the service life of the impeller.

[0015] 2. The utility model can filter the large particles of impurities mixed in the slurry before the slurry is pumped in through the filtering mechanism, so as to avoid the collision of the large particles of impurities with the impeller after being pumped in and the scraping off of the corrosion-resistant coating on the impeller surface, and also avoid the scratches between the large particles of impurities and the outer shell, which may reduce the corrosion resistance. When cleaning the filtered large particles of impurities, it is only necessary to remove the filter cover for cleaning, and the filter cover can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic side view of a corrosion-resistant and wear-resistant slurry pump of the utility model;

[0017] Figure 2 This is a schematic diagram of an expanded view of a corrosion-resistant and wear-resistant slurry pump of the utility model;

[0018] Figure 3 This is a schematic diagram of an expanded view of a corrosion-resistant and wear-resistant slurry pump of the utility model;

[0019] Figure 4It is a schematic side view of a corrosion-resistant and wear-resistant slurry pump wall scraping mechanism of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of an expanded view of a corrosion-resistant and wear-resistant slurry pump filtering mechanism.

[0021] In the figure: 1. base; 2. rear shell; 3. motor cover; 4. servo motor; 5. scraper mechanism; 511. transmission shaft; 512. connecting ring; 513. arc scraper; 514. rear scraper; 515. impeller; 6. water suction port; 7. front shell; 8. connecting plate; 9. filter mechanism; 911. circular groove; 912. circular ring; 913. filter cover; 914. plug rod; 915. fixing ring. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution: a corrosion-resistant and wear-resistant slurry pump, including a base 1, a rear shell 2 is fixedly connected to the top of the base 1, a motor cover 3 is fixedly connected to the rear side of the rear shell 2, a servo motor 4 is fixedly connected inside the motor cover 3, a scraper mechanism 5 is fixedly connected to the front end of the servo motor 4, a water suction port 6 is arranged on the left side of the rear shell 2, a front shell 7 is arranged on the front side of the rear shell 2, a connecting plate 8 is fixedly connected to the front end of the front shell 7, a filtering mechanism 9 is clamped inside the connecting plate 8, the front end of the motor cover 3 is fixedly connected to the rear side of the rear shell 2 by screws, the water suction port 6 is symmetrically arranged on the left sides of the rear shell 2 and the front shell 7, a sealing gasket is arranged between the rear shell 2 and the front shell 7, and the edges of the rear shell 2 and the front shell 7 are fixedly connected by screws.

[0024] Furthermore, the wall scraping mechanism 5 includes a transmission shaft 511, which is fixedly connected to the front end of the rotating shaft of the servo motor 4, a connecting ring 512 is fixedly connected to the middle of the transmission shaft 511, an arc scraper 513 is fixedly connected to the outer side of the connecting ring 512, a rear scraper 514 is fixedly connected to the rear side of the arc scraper 513, and an impeller 515 is plugged into the front end of the transmission shaft 511;

[0025] The wall scraping mechanism 5 is arranged inside the rear shell body 2 and the front shell body 7. There are six arc-shaped scraping blades 513. The six arc-shaped scraping blades 513 are equidistantly fixedly connected to the outside of the connecting ring 512. The arc-shaped scraping blades 513 and the rear scraping blades 514 are arc-shaped on the left and right sides. The outer sides of the arc-shaped scraping blades 513 are attached to the inner walls of the rear shell body 2 and the front shell body 7, and the rear side of the rear scraping blades 514 is attached to the rear side of the rear shell body 2. The surface of the impeller 515 is sprayed with a corrosion-resistant coating.

[0026] It should be noted that when the slurry is pumped in, the servo motor 4 fixedly connected to the motor cover 3 is started, and the servo motor 4 drives the transmission shaft 511 to rotate, and then drives the impeller 515 fixed at the front end of the transmission shaft 511 to rotate. Under the high-speed rotation of the impeller 515, the centrifugal force generated makes the slurry obtain kinetic energy and flow out from the water pumping port 6 upward. When the impeller 515 rotates, the connecting ring 512 fixed in the middle of the transmission shaft 511 also rotates. When pumping the slurry, due to the viscosity of the slurry, part of the viscous slurry is dissipated under the action of centrifugal force. The substance will adhere to the inner walls of the rear shell 2 and the front shell 7, making it difficult to pump out. At this time, the arc-shaped scraper 513 fixedly connected to the surface of the connecting ring 512 can scrape off the substance adhered to the inner walls of the rear shell 2 and the front shell 7, so that it can be pumped out with the slurry, which can prevent the substance from adhering to the inside and causing corrosion, and can also ensure the concentration of the pumped slurry. The rear scraper 514 fixedly connected to the rear side of the arc-shaped scraper 513 can hang down the substance gathered on the rear side of the rear shell 2 to avoid gathering at the transmission shaft 511 and affecting the transmission of the servo motor 4.

[0027] Furthermore, the filtering mechanism 9 includes a circular groove 911, which is provided on the front side of the connecting plate 8. A circular ring 912 is clamped inside the circular groove 911. A filter cover 913 is fixedly connected to the rear side of the circular ring 912. A plug rod 914 is fixedly connected to the rear edge of the circular ring 912 at equal distances. A fixing ring 915 is provided on the front side of the circular ring 912. The circular groove 911, the circular ring 912 and the fixing ring 915 have the same diameter. A plug hole is provided inside the circular groove 911. The plug rod 914 is plugged into the plug hole inside the circular groove 911. The filter cover 913 is made of corrosion-resistant material.

[0028] It should be noted that when pumping slurry, some large particles of impurities will be included in the slurry. The filter cover 913 that is snap-fitted into the circular groove 911 can filter out such impurities to prevent large particles of impurities from entering the pump body and colliding with the inner walls of the rear shell 2 and the front shell 7, causing scratches on the inner walls, increasing the wear of the device and affecting the service life of the device. At the same time, it can also prevent particles from colliding with the impeller 515 and scraping off the corrosion-resistant coating sprayed on the surface of the impeller 515, thereby affecting the corrosion resistance of the impeller 515. For the filtered particles, the ring 912 only needs to be removed from the circular groove 911 for cleaning, which is convenient for reuse. At the same time, the rod 914 arranged on the rear side of the ring 912 can effectively prevent the filter cover 913 from being rushed into the device due to excessive impact force of the slurry.

[0029] Working principle: When in use, connect the connection plate 8 on the front side of the front housing 7 to the input pipe, and then connect the top of the water pumping port 6 to the output pipe. By starting the servo motor 4 fixedly connected to the inside of the motor cover 3, the servo motor 4 drives the transmission shaft 511 to rotate, and then drives the impeller 515 fixed to the front end of the transmission shaft 511 to rotate. Under the high-speed rotation of the impeller 515, the centrifugal force generated enables the slurry to obtain kinetic energy and flow upward from the water pumping port 6. Before the slurry is pumped in, some large particles of impurities will be attached to the slurry. The filter cover 913 that is clamped in the circular groove 911 can filter such impurities, preventing large particles of impurities from entering the pump body and colliding with the inner walls of the rear shell 2 and the front shell 7, causing scratches on the inner walls, increasing the wear of the device and affecting the service life of the device. At the same time, it can also prevent particles from colliding with the impeller 515, scraping off the corrosion-resistant coating sprayed on the surface of the impeller 515, and affecting the corrosion resistance of the impeller 515. When the impeller 515 rotates, the connecting ring 512 fixed to the middle of the transmission shaft 511 also rotates. During the pumping, due to the viscosity of the slurry, under the action of centrifugal force, some viscous substances will adhere to the inner walls of the rear shell 2 and the front shell 7, making it difficult to pump out. At this time, the arc-shaped scraper 513 fixedly connected to the surface of the connecting ring 512 can scrape off the substances attached to the inner walls of the rear shell 2 and the front shell 7, so that they can be pumped out with the slurry, which can prevent the substances from adhering to the inside and causing corrosion, and can also ensure the concentration of the pumped slurry. The rear scraper 514 fixedly connected to the rear side of the arc-shaped scraper 513 can scrape off the substances gathered on the rear shell 2 and the inner walls of the front shell 7, so that they can be pumped out with the slurry. The materials on the rear side are hung down to avoid gathering on the transmission shaft 511 and affecting the transmission of the servo motor 4. For the filtered particles, the ring 912 can be cleaned by simply removing it from the circular groove 911, which is convenient for reuse. At the same time, the plug rod 914 arranged on the rear side of the ring 912 can effectively prevent the filter cover 913 from being rushed into the device due to excessive impact force of the slurry. The fixing ring 915 arranged on the front side of the ring 912 can further fix the ring 912 to prevent the slurry from rushing the filter cover 913 out of the circular groove 911.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A corrosion-resistant and wear-resistant slurry pump, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a rear shell (2), the rear side of the rear shell (2) is fixedly connected to a motor cover (3), the interior of the motor cover (3) is fixedly connected to a servo motor (4), the front end of the servo motor (4) is fixedly connected to a wall scraping mechanism (5), a water suction port (6) is provided on the left side of the rear shell (2), a front shell (7) is provided on the front side of the rear shell (2), the front end of the front shell (7) is fixedly connected to a connecting plate (8), and a filtering mechanism (9) is clamped inside the connecting plate (8).

2. A corrosion-resistant and wear-resistant slurry pump according to claim 1, characterized in that: The front end of the motor cover (3) is fixedly connected to the rear side of the rear housing (2) by means of screws, the water extraction port (6) is symmetrically arranged on the left side of the rear housing (2) and the front housing (7), a sealing gasket is arranged between the rear housing (2) and the front housing (7), and the edges of the rear housing (2) and the front housing (7) are fixedly connected by means of screws.

3. The corrosion-resistant and wear-resistant slurry pump according to claim 1, characterized in that: The wall scraping mechanism (5) comprises a transmission shaft (511), the transmission shaft (511) is fixedly connected to the front end of the rotating shaft of the servo motor (4), a connecting ring (512) is fixedly connected to the middle of the transmission shaft (511), an arc-shaped scraping blade (513) is fixedly connected to the outside of the connecting ring (512), a rear scraping blade (514) is fixedly connected to the rear side of the arc-shaped scraping blade (513), and an impeller (515) is plugged into the front end of the transmission shaft (511).

4. A corrosion-resistant and wear-resistant slurry pump according to claim 3, characterized in that: The wall scraping mechanism (5) is arranged inside the rear housing (2) and the front housing (7), and the number of the arc-shaped scraping blades (513) is six. The six arc-shaped scraping blades (513) are fixedly connected to the outside of the connecting ring (512) at equal distances.

5. The corrosion-resistant and wear-resistant slurry pump according to claim 3, characterized in that: The arc-shaped scraper blade (513) and the rear scraper blade (514) are designed to be arc-shaped on the left and right sides; the outer side of the arc-shaped scraper blade (513) is attached to the inner wall of the rear housing (2) and the front housing (7); the rear side of the rear scraper blade (514) is attached to the rear side of the rear housing (2); and the surface of the impeller (515) is sprayed with a corrosion-resistant coating.

6. The corrosion-resistant and wear-resistant slurry pump according to claim 1, characterized in that: The filtering mechanism (9) comprises a circular groove (911), the circular groove (911) being arranged on the front side of the connecting plate (8), a circular ring (912) being clamped inside the circular groove (911), a filter cover (913) being fixedly connected to the rear side of the circular ring (912), an insertion rod (914) being fixedly connected to the rear edge of the circular ring (912) at equal distances, and a fixing ring (915) being arranged on the front side of the circular ring (912).

7. The corrosion-resistant and wear-resistant slurry pump according to claim 6, characterized in that: The circular groove (911), the circular ring (912) and the fixing ring (915) have the same diameter. A plug hole is provided inside the circular groove (911). The plug rod (914) is plugged into the plug hole inside the circular groove (911). The filter cover (913) is made of corrosion-resistant material.

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