Casting powder stirring device

Abstract

The utility model belongs to the technical field of casting powder production, and particularly relates to a casting powder stirring device which comprises a storage tank, a speed reducing motor mounted at the top of the storage tank is in driving connection with a stirrer, a feed opening is formed in the bottom of the storage tank, and a scraping assembly is mounted at the bottom of the feed opening and connected with a circulating pipe. The circulating pipe is connected with a water inlet of the feeding pump through a bent pipe, a water outlet of the feeding pump is communicated with the tank top of the storage tank through the circulating pipe, a discharging valve is installed on the circulating pipe, the scraping assembly comprises a flange plate, a supporting frame is arranged on the inner side of the flange plate, a rotating shaft is rotationally clamped on the supporting frame, an impeller and a fixing plate are installed on the rotating shaft, and a scraping plate is installed on the fixing plate; and the bottom surface of the scraper is adaptively attached to the inner bottom of the storage tank. The material liquid in the material storage tank circularly flows from the bottom of the tank to the top of the tank under the conveying of the feeding pump, so that the homogeneous mixing can still be effectively kept when the liquid level of the material liquid in the material storage tank is lower than the stirrer; and the scraping plate rotates by taking water flow as power to effectively scrape slurry deposited above the discharging opening.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective slag production, and in particular relates to a protective slag stirring device. Background Art

[0002] Shielding slag is generally produced by spray granulation, wherein spray granulation is a drying equipment that produces products after the particle size requirements are met by subjecting the material to fluidization, dust removal, atomization, solidification and other treatments. In order to make the produced shielding slag product uniform, a stirring device is usually provided before spray granulation to stir the slurry to make the slurry more uniform, thereby ensuring the uniformity of the shielding slag product.

[0003] When the existing protective slag slurry is stirred in a storage tank, the center of the tank bottom, i.e., the feed outlet, is prone to sinking; and when the liquid level of the slurry in the tank is lower than the bottom of the agitator, the slurry cannot be effectively stirred and mixed by the agitator. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a protective slag stirring device to solve the problem that when the existing protective slag slurry is stirred in a storage tank, the center of the tank bottom, i.e., the feed outlet, is prone to sinking; and when the liquid level of the slurry in the tank is lower than the bottom end of the agitator, the slurry cannot be effectively stirred and mixed by the agitator.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a protective slag stirring device, comprising a storage tank, a reduction motor is installed on the top of the storage tank, the reduction motor drives a stirrer connected and rotatably installed in the storage tank, a discharge port is provided at the bottom of the storage tank, a scraper assembly is installed at the bottom of the discharge port, the scraper assembly is connected to one end of a circulation pipe, the other end of the circulation pipe is connected to the water inlet of a feeding pump through a bend pipe, the water outlet of the feeding pump is connected to the tank top of the storage tank through the circulation pipe, a discharge valve is installed on the circulation pipe, the scraper assembly comprises a flange, a support frame is provided on the inner side of the flange, a rotating shaft is rotatably mounted on the support frame, an impeller and a fixed plate are installed on the rotating shaft, a scraper is installed on the fixed plate, and the bottom surface of the scraper fits the inner bottom of the storage tank.

[0006] The beneficial effects of the utility model are as follows: the material liquid in the storage tank circulates from the bottom of the tank to the top of the tank under the delivery of the feeding pump, ensuring that the slurry liquid level in the storage tank can still be effectively maintained homogeneous mixing when it is lower than the agitator; the scraper rotates with the water flow as the power to effectively scrape up the slurry deposited above the discharge port.

[0007] In order to ensure the stability of the scraper assembly installation;

[0008] As a further improvement of the above technical solution: the feed port and one end of the bent pipe facing the scraper assembly are both welded with flanges, and the flanges are connected to the feed port and the flanges on the bent pipe by bolts.

[0009] The beneficial effect of this improvement is that the connection method of the flange and the bolts can effectively ensure the stability of the installation of the scraper assembly.

[0010] In order to keep the rotating shaft in stable rotation;

[0011] As a further improvement of the above technical solution: the support frame is a cross-shaped structure, and the axis of the rotating shaft is colinear with the axis of the flange.

[0012] The beneficial effect of this improvement is that the rotating shaft can rotate stably under the support of the support frame.

[0013] In order to effectively reduce the difficulty of loading and unloading the scraper assembly;

[0014] As a further improvement of the above technical solution: the scraper is rotatably connected to the fixed plate through a pin shaft, and the straight-line distance from the end of the fixed plate to the axis of the rotating shaft is not greater than 1 / 2 of the inner diameter of the discharge port.

[0015] The beneficial effect of this improvement is that the scraper can be rotated and retracted upward, so that the scraper assembly can be smoothly inserted into the discharge port and the storage tank or taken out from the discharge port.

[0016] In order to ensure the uniformity of force when the rotating shaft drives the scraper to scrape the slurry;

[0017] As a further improvement of the above technical solution: the number of the scrapers is multiple, and they are arranged at equal intervals around the axis of the rotating shaft.

[0018] The beneficial effect of this improvement is that the multiple scrapers can ensure the uniformity of the force applied to the rotating shaft in the radial direction when scraping off the slurry, thereby ensuring the stability of the rotation of the rotating shaft.

[0019] In order to effectively ensure the smooth rotation of the rotating shaft;

[0020] As a further improvement of the above technical solution: the rotating shaft is a nylon cylindrical structure with a smooth surface, and the supporting frame is provided with a nylon bushing structure that is rotatably sleeved on the rotating shaft.

[0021] The beneficial effect of this improvement is that the self-lubricating property of the rotating shaft enables the rotating shaft to rotate smoothly in an environment filled with slurry.

[0022] In order for the impeller to effectively drive the rotating shaft to rotate;

[0023] As a further improvement of the above technical solution: the number of the impellers is multiple and they are installed on the rotating shaft at equal intervals.

[0024] The beneficial effect of this improvement is that the plurality of impellers can drive the rotating shaft to rotate effectively under the impetus of the slurry.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional structural diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the scraper assembly in the utility model;

[0029] Figure 4 It is an enlarged view of A in the utility model;

[0030] In the figure: 1. Storage tank; 2. Speed ​​reduction motor; 3. Agitator; 4. Feeding port; 5. Scraper assembly; 51. Flange; 52. Support frame; 53. Rotating shaft; 54. Impeller; 55. Fixed plate; 56. Scraper; 6. Circulation pipe; 7. Feeding pump; 8. Discharge valve; 9. Bend pipe. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1—4 shows: a protective slag stirring device, comprising a storage tank 1, a reduction motor 2 is installed on the top of the storage tank 1, the reduction motor 2 drives the stirrer 3 connected and rotated installed in the storage tank 1, a discharge port 4 is arranged at the bottom of the storage tank 1, a scraper assembly 5 is installed at the bottom of the discharge port 4, the scraper assembly 5 is connected to one end of a circulation pipe 6, the other end of the circulation pipe 6 is connected to the water inlet of a feed pump 7 through a bend pipe 9, the water outlet of the feed pump 7 is connected to the tank top of the storage tank 1 through the circulation pipe 6, a discharge valve 8 is installed on the circulation pipe 6, the scraper assembly 5 comprises a flange 51, the inner side of the flange 51 is provided with A support frame 52 is provided on which a rotating shaft 53 is rotatably mounted. An impeller 54 and a fixed plate 55 are mounted on the rotating shaft 53. A scraper 56 is mounted on the fixed plate 55. The bottom surface of the scraper 56 fits the inner bottom of the storage tank 1. The liquid in the storage tank 1 circulates from the bottom of the tank to the top of the tank under the delivery of the feeding pump 7, ensuring that the slurry level in the storage tank 1 can still be effectively maintained in a homogeneous mixture when it is lower than the agitator 3; the scraper 56 rotates with the water flow as the power to effectively scrape up the slurry deposited above the discharge port 4. The discharge port 4 and the end of the curved pipe 9 facing the scraper assembly 5 are both welded with flanges, and the flange 51 is connected by bolts The flanges on the discharge port 4 and the elbow 9, the connection method of the flanges and bolts can effectively ensure the stability of the installation of the scraper assembly 5. The support frame 52 is a cross-shaped structure. The axis of the rotating shaft 53 is colinear with the axis of the flange 51. The rotating shaft 53 can rotate stably under the support of the support frame 52. The scraper 56 is rotatably connected to the fixed plate 55 through a pin shaft. The straight-line distance from the end of the fixed plate 55 to the axis of the rotating shaft 53 is not greater than 1 / 2 of the inner diameter of the discharge port 4. The scraper 56 can be rotated and retracted upward, so that the scraper assembly 5 can be smoothly inserted into the discharge port 4 and the storage tank 1 or taken out from the discharge port 4. The number of scrapers 56 There are multiple impellers 54, which are equidistantly arranged around the axis of the rotating shaft 53. When scraping off the slurry, the multiple scrapers 56 can ensure the uniformity of the force on the rotating shaft 53 in the radial direction, thereby ensuring the stability of the rotation of the rotating shaft 53. The rotating shaft 53 is a nylon cylindrical structure with a smooth surface. The support frame 52 is provided with a nylon bushing structure that is rotatably sleeved on the rotating shaft 53. The self-lubricating property of the rotating shaft 53 enables the rotating shaft 53 to rotate smoothly in an environment filled with slurry. There are multiple impellers 54, which are equidistantly installed on the rotating shaft 53. The multiple impellers 54 can drive the rotating shaft 53 to rotate effectively under the push of the slurry.

[0034] The working principle of the present technical solution is as follows: the reduction motor 2 and the feeding pump 7 are started, and the reduction motor 2 drives the agitator 3 to rotate and stir the slurry in the storage tank 1; the feeding pump 7 sucks and transports the slurry in the storage tank 1, so that the slurry in the storage tank 1 passes through the discharge port 4, the scraper assembly 5, the elbow 9, and the circulation pipe 6 and then flows back to the top of the storage tank 1, so that the slurry in the storage tank 1 circulates, and the use of the agitator 3 improves the uniformity of the slurry mixing, and when the slurry level in the storage tank 1 is lower than the agitator 3, it can still maintain homogeneous mixing under the transportation of the feeding pump 7; in the process of the slurry passing through the scraper assembly 5, the impeller 54 is pushed by the slurry and drives the rotating shaft 53 to rotate, and the rotating shaft 53 then drives the fixed plate 55 and the scraper 56 installed on the fixed plate 55 to rotate synchronously, and when the scraper 56 rotates, the slurry deposited at the bottom of the storage tank 1 on the side of the discharge port 4 is scraped up and thrown to the surrounding side under the action of centrifugal force, so that the slurry is pushed by the agitator 3 to flow.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A mold slag stirring device, characterized in that: The invention comprises a material storage tank (1), wherein a reduction motor (2) is installed on the top of the material storage tank (1), wherein the reduction motor (2) drives a stirrer (3) connected and rotatably installed in the material storage tank (1), wherein a discharge port (4) is provided at the bottom of the material storage tank (1), wherein a scraper assembly (5) is installed at the bottom of the discharge port (4), wherein the scraper assembly (5) is connected to one end of a circulation pipe (6), wherein the other end of the circulation pipe (6) is connected to the water inlet of a feeding pump (7) through a bend pipe (9), and wherein the water outlet of the feeding pump (7) is connected to the water outlet of the feeding pump (7) through a circulation pipe (9). The annular pipe (6) is connected to the tank top of the storage tank (1), a discharge valve (8) is installed on the circulation pipe (6), and the scraper assembly (5) comprises a flange (51), a support frame (52) is arranged on the inner side of the flange (51), a rotating shaft (53) is rotatably mounted on the support frame (52), an impeller (54) and a fixed plate (55) are installed on the rotating shaft (53), a scraper (56) is installed on the fixed plate (55), and the bottom surface of the scraper (56) is adapted to fit the inner bottom of the storage tank (1).

2. A mold slag stirring device according to claim 1, characterized in that: The feed opening (4) and the end of the curved pipe (9) facing the scraper assembly (5) are both welded with flanges, and the flange (51) is connected to the feed opening (4) and the flange on the curved pipe (9) by bolts.

3. The mold slag stirring device according to claim 1, characterized in that: The support frame (52) is a cross-shaped structure, and the axis of the rotating shaft (53) is colinear with the axis of the flange (51).

4. The mold slag stirring device according to claim 1, characterized in that: The scraper (56) is rotatably connected to the fixed plate (55) via a pin shaft, and the straight-line distance from the end of the fixed plate (55) to the axis of the rotating shaft (53) is no greater than 1 / 2 of the inner diameter of the feed opening (4).

5. The mold slag stirring device according to claim 1, characterized in that: The scrapers (56) are multiple in number and are arranged at equal intervals around the axis of the rotating shaft (53).

6. The mold slag stirring device according to claim 1, characterized in that: The rotating shaft (53) is a nylon cylindrical structure with a smooth surface, and the support frame (52) is provided with a nylon bushing structure that is rotatably sleeved on the rotating shaft (53).

7. The mold slag stirring device according to claim 1, characterized in that: The impellers (54) are multiple in number and are installed on the rotating shaft (53) at equal intervals.

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