Efficient crushing and screening equipment for food-grade calcium hydroxide raw material

Abstract

The utility model discloses efficient crushing and screening equipment for food-grade calcium hydroxide raw materials, which comprises a mounting rack, a connecting cylinder is fixedly mounted on the upper surface of the mounting rack, two groups of crushing wheels are rotatably mounted in the connecting cylinder, and the two groups of crushing wheels are horizontally opposite to each other; two groups of crushing wheels are arranged in the mounting frame and can crush a calcium hydroxide raw material into particles with the same distance as the two groups of crushing wheels, two groups of connecting plates are fixedly mounted in the mounting frame and are downwards inclined by 25 degrees, guide grooves are formed in one ends of the inner sides of the two groups of connecting plates, and a screening mechanism is slidably mounted between the two groups of guide grooves; and the screening mechanism can screen the crushed calcium hydroxide raw material. By means of the screening mechanism, power for screening operation comes from power generated when the crushing wheel is driven by the gear motor to rotate, a crushing power part is used for screening operation, a power source does not need to be independently arranged for screening, existing power of equipment is fully utilized, and the energy utilization rate of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of calcium hydroxide production equipment, specifically to a high-efficiency crushing and screening device for food-grade calcium hydroxide raw materials. Background Technology

[0002] To ensure the chemical stability of calcium hydroxide, a homogenization process is required during its production, which involves homogenizing the lumpy raw material into powder.

[0003] Patent CN213223181U discloses a large particle impurity removal device for calcium hydroxide, comprising a rectangular box and two vertically spaced partitions arranged in the box. An impurity screening section is formed between the two partitions in the box, and impurity removal sections are formed on the sides of the two partitions opposite to the impurity screening section. The box is also equipped with a pusher plate for leveling the material to be screened in the impurity screening section and pushing large particles of impurities screened out in the impurity screening section into the impurity removal section. This device can reduce dust diffusion generated during impurity removal and avoid clogging, thereby improving the continuity and production efficiency of calcium hydroxide production.

[0004] The above-mentioned device cannot perform sieving and powder separation of crushed calcium hydroxide. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency crushing and screening device for food-grade calcium hydroxide raw materials, so as to solve the technical problem that existing screening devices cannot perform large-size screening and powder separation after crushing calcium hydroxide.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency crushing and screening device for food-grade calcium hydroxide raw materials includes a mounting frame. A connecting cylinder is fixedly mounted on the upper surface of the mounting frame. Two sets of crushing wheels are rotatably mounted inside the connecting cylinder, and the two sets of crushing wheels are horizontally opposite each other, which can crush the calcium hydroxide raw materials into particles with a spacing of the same size as the distance between the two sets of crushing wheels.

[0008] The mounting frame has two sets of connecting plates fixedly installed inside. Both sets of connecting plates are inclined downward at 25°. A guide groove is opened on one end of the inner side of each set of connecting plates. A screening mechanism is slidably installed between the two sets of guide grooves, so that the screening mechanism can screen the crushed calcium hydroxide raw material.

[0009] In a preferred embodiment of this utility model, a set of crushing wheels is fixedly connected to the output shaft of a reduction motor, and the reduction motor is fixedly mounted on one end of the upper surface of the mounting frame.

[0010] As a preferred embodiment of this utility model, the transmission columns at the other ends of the two sets of crushing wheels both extend through the connecting cylinder and are fixedly mounted with gears at their ends, and the two sets of gears mesh with each other.

[0011] As a preferred embodiment of this utility model, when the gear is driven to rotate by the reduction motor, this crushing wheel can mesh with the gear of another set of crushing wheels, thereby realizing the operation of driving the two sets of gears to rotate synchronously relative to each other, and can crush the calcium hydroxide raw material into particles with a distance between the two sets of crushing wheels.

[0012] As a preferred embodiment of this utility model, the screening mechanism includes a screen frame, with a screen mesh laid at the bottom inside the screen frame, and guide blocks fixedly installed on both sides of the screen frame. The screen frame is slidably installed in the guide grooves of two sets of connecting plates through the guide blocks on both sides, and the lower end of the screen frame is flush with the connecting cylinder.

[0013] As a preferred embodiment of this utility model, a first transmission disc is rotatably mounted on one end of the connecting plate, a transmission belt is fitted on the outer surface of the first transmission disc, the other end of the transmission belt is fitted on the outer surface of the second transmission disc, the second transmission disc is fixedly mounted on one end of one set of gears, a connecting arm is rotatably mounted on one end of the first transmission disc, the other end of the connecting arm is rotatably mounted on the outer surface of the rotating rod, the rotating rod is fixedly mounted on one end of the guide block, and the rotating rod passes through the push port, the push port is opened at one end of the connecting plate, and the push port is connected to and flush with the guide groove.

[0014] Compared with existing technologies, the advantages of this utility model's efficient crushing and screening equipment for food-grade calcium hydroxide raw materials are as follows:

[0015] 1. When crushing and screening calcium hydroxide, a reduction motor can be started to drive one set of crushing wheels to rotate inside the connecting cylinder. This crushing wheel then meshes with the gears of the other set of crushing wheels, achieving synchronous relative rotation of the two sets of gears. Calcium hydroxide raw material is poured into the connecting cylinder, where the two sets of crushing wheels crush the calcium hydroxide into particles the size of the gap between them. The crushed calcium hydroxide falls into the screening mechanism and is repeatedly pushed and pulled between the two connecting plates. Calcium hydroxide particles larger than the mesh size of the screening mechanism are screened out, while smaller, powdery calcium hydroxide falls through the mesh to the bottom. A receiving container is placed at the bottom of the screening mechanism for... This process enables the sieving and powder separation of calcium hydroxide, effectively separating calcium hydroxide of different particle sizes to obtain products that meet requirements and ensure the uniformity of product particle size, thus satisfying different production needs. The reciprocating sieving power of the sieving mechanism is driven by the rotation of the crushing wheel, eliminating the need for an additional motor. The entire crushing and sieving device has a simple structure without complex mechanical components. In particular, the reciprocating sieving power of the sieving mechanism is driven by the rotation of the crushing wheel, eliminating the need for an additional motor, reducing the number of parts in the equipment, and lowering the probability of equipment failure. In the event of a failure, the simple structure also facilitates quick troubleshooting and repair by maintenance personnel, reducing equipment downtime.

[0016] 2. When the crushing wheel is driven to rotate by the reduction motor, the crushing wheel drives the second transmission disc, which is fixedly mounted on one end of the gear, to rotate together. A transmission belt is fitted onto the outer surface of the second transmission disc, and the other end of the transmission belt is fitted onto the outer surface of the first transmission disc, thus driving the first transmission disc to rotate. The first transmission disc drives a connecting arm, which is rotatably mounted at one end, to reciprocately push and pull the rotating rod, causing it to rotate on the outer surface of the rotating rod. This reciprocating motion of the rotating rod pushes and pulls the screen frame, which slides back and forth in the guide grooves opened on the inner sides of the two sets of connecting plates via guide blocks on both sides. This process performs size screening and powder separation of the crushed calcium hydroxide. The above screening method can be used to... The particle size range of screening can be flexibly adjusted by changing the mesh size of the screen within the screen frame. Whether larger particles of calcium hydroxide are needed for a specific production process, or finer powdered calcium hydroxide is required, precise screening can be achieved by changing screens with different mesh sizes, thereby meeting different production processes and product requirements. Furthermore, the power for the entire screening operation comes from the power generated when the crushing wheel is driven to rotate by the geared motor. This method of using part of the crushing power for screening operations eliminates the need for a separate power source for screening, making full use of the existing power of the equipment, improving the energy utilization rate of the equipment, and helping to reduce the operating costs of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the meshing structure of two sets of gears in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of two sets of crushing wheels facing each other in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the sieving mechanism in an embodiment of the present invention.

[0022] Reference numerals: 1. Mounting frame; 101. Connecting plate; 102. Pushing port; 103. Guide groove; 104. Connecting cylinder; 105. Crushing wheel; 106. Gear motor; 107. Gear; 2. Screening mechanism; 201. Screen frame; 202. Guide block; 203. Second transmission disc; 204. First transmission disc; 205. Transmission belt; 206. Connecting arm; 207. Rotating rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0026] See Figures 1-4 As shown in the figure, an embodiment of the present invention provides a high-efficiency crushing and screening device for food-grade calcium hydroxide raw materials, including a mounting frame 1. A connecting cylinder 104 is fixedly installed on the upper surface of the mounting frame 1. Two sets of crushing wheels 105 are rotatably installed inside the connecting cylinder 104, and the two sets of crushing wheels 105 are horizontally opposite each other, which can crush the calcium hydroxide raw materials into particles with a spacing of the same size as the distance between the two sets of crushing wheels 105.

[0027] The mounting frame 1 has two sets of connecting plates 101 fixedly installed inside. Both sets of connecting plates (101) are inclined downward at 25°. One end of the inner side of each set of connecting plates 101 is provided with a guide groove 103. A screening mechanism 2 is slidably installed between the two sets of guide grooves 103, so that the screening mechanism 2 can screen the crushed calcium hydroxide raw material.

[0028] One set of crushing wheels 105 is fixedly connected to the output shaft of the reduction motor 106, and the reduction motor 106 is fixedly installed on one end of the upper surface of the mounting bracket 1.

[0029] The transmission columns at the other end of the two sets of crushing wheels 105 both extend through the connecting cylinder 104 and are fixedly mounted with gears 107 at their ends, and the two sets of gears 107 mesh with each other.

[0030] When gear 107 is driven to rotate by gear motor 106, it enables the crushing wheel 105 to mesh with the gear 107 of another set of crushing wheels 105, thereby achieving the operation of driving the two sets of gears 107 to rotate synchronously relative to each other, and crushing the calcium hydroxide raw material into particles with a spacing between the two sets of crushing wheels 105.

[0031] During the crushing and screening of calcium hydroxide, the reduction motor 106 can be started to drive one set of crushing wheels 105 to rotate inside the connecting cylinder 104. This crushing wheel 105 then meshes with the gear 107 of the other set of crushing wheels 105, thus achieving synchronous relative rotation of the two sets of gears 107. This allows workers to pour calcium hydroxide raw material into the connecting cylinder 104, where the two sets of crushing wheels 105 crush the calcium hydroxide into particles with a spacing between them. The crushed calcium hydroxide falls into the screening mechanism 2 and is repeatedly pushed and pulled between the two connecting plates 101. This allows calcium hydroxide particles larger than the mesh size of the screening mechanism 2 to be screened out, while smaller, powdery calcium hydroxide falls through the mesh size of the screening mechanism 2. At the lower end, a receiving container can be placed at the bottom of the screening mechanism 2 for receiving, thereby realizing the operation of screening and separating calcium hydroxide by size and powder. This screening method can effectively separate calcium hydroxide of different particle sizes to obtain products that meet the requirements, ensuring the uniformity of product particle size, which is conducive to meeting different production needs. The reciprocating screening power of the screening mechanism 2 is driven by the rotation of the crushing wheel 105, without the need for an additional motor. Moreover, the entire crushing and screening device has a simple structure without complex mechanical structure. In particular, the reciprocating screening power of the screening mechanism 2 is driven by the rotation of the crushing wheel 105, without the need for an additional motor. This reduces the number of parts in the equipment and lowers the probability of equipment failure. Once a failure occurs, the simple structure also makes it easy for maintenance personnel to quickly troubleshoot and repair the problem, reducing equipment downtime.

[0032] like Figure 4 As shown, the sieving mechanism 2 includes a sieve frame 201, with a sieve mesh laid at the bottom inside the sieve frame 201. Guide blocks 202 are fixedly installed on both sides of the sieve frame 201. The sieve frame 201 is slidably installed in the guide grooves 103 of the two sets of connecting plates 101 through the guide blocks 202 on both sides. The sieve frame 201 is flush with the lower end of the connecting cylinder 104.

[0033] A first transmission disc 204 is rotatably mounted on one end of the connecting plate 101. A transmission belt 205 is fitted on the outer surface of the first transmission disc 204. The other end of the transmission belt 205 is fitted on the outer surface of the second transmission disc 203. The second transmission disc 203 is fixedly mounted on one end of one set of gears 107. A connecting arm 206 is rotatably mounted on one end of the first transmission disc 204. The other end of the connecting arm 206 is rotatably mounted on the outer surface of the rotating rod 207. The rotating rod 207 is fixedly mounted on one end of the guide block 202 and extends through the push port 102. The push port 102 is opened at one end of the connecting plate 101 and is connected to and flush with the guide groove 103.

[0034] When the crushing wheel 105 is driven to rotate by the reduction motor 106, it can drive the second transmission disc 203, which is fixedly mounted on one end of the gear 107, to rotate together. The outer surface of the second transmission disc 203 is fitted with a transmission belt 205, and the other end of the transmission belt 205 is fitted on the outer surface of the first transmission disc 204, thereby driving the first transmission disc 204 to rotate. The first transmission disc 204 can drive the connecting arm 206, which is rotatably mounted on one end, to push and pull the rotating rod 207 back and forth, and rotate on the outer surface of the rotating rod 207. This allows the rotating rod 207 to push and pull the screen frame 201 back and forth through the guide blocks 202 on both sides, sliding back and forth in the guide grooves 103 opened on the inner side of the two sets of connecting plates 101, thereby enabling the crushed hydrogen and oxygen to be processed. The calcium hydroxide is sieved and separated into powders. This sieving method allows for flexible adjustment of the particle size range based on the mesh size of the screen within the sieve frame 201. Whether larger particles of calcium hydroxide are needed for a specific production stage, or finer powdered calcium hydroxide is required, precise sieving can be achieved by changing the screen with different mesh sizes, thus meeting different production processes and product requirements. Furthermore, the power for the entire sieving operation comes from the power generated when the crushing wheel 105 is driven to rotate by the reduction motor 106. This method of using part of the crushing power for the sieving operation eliminates the need for a separate power source for sieving, making full use of the existing power of the equipment and improving the overall energy efficiency of the equipment, which helps to reduce the operating costs of the equipment.

[0035] When crushing and screening calcium hydroxide using this embodiment of the invention, the reduction motor 106 is started to drive one set of crushing wheels 105 to rotate inside the connecting cylinder 104. The crushing wheels 105 mesh with the gears 107 of the other set of crushing wheels 105, thereby driving the two sets of gears 107 to rotate synchronously relative to each other. During the rotation of the crushing wheels 105, the crushing wheels 105 can drive the second transmission disc 203, which is fixedly installed at one end of the gears 107, to rotate together. The outer surface of the second transmission disc 203 is fitted with a transmission belt 205, and the other end of the transmission belt 205 is fitted with the outer surface of the first transmission disc 204, thereby driving the first transmission disc 204 to rotate together. The first transmission disc 204 can drive the connecting arm 206, which is rotatably installed at one end, to reciprocate pushing and pulling the rotating rod 2. 07, and rotate on the outer surface of the rotating rod 207, thereby enabling the rotating rod 207 to push and pull the screen frame 201 back and forth through the guide blocks 202 on both sides and slide back and forth in the guide grooves 103 opened on the inner side of the two sets of connecting plates 101, pouring the calcium hydroxide raw material into the connecting cylinder 104, so that the two sets of crushing wheels 105 crush the calcium hydroxide into particles with a spacing between the two sets of crushing wheels 105, and the crushed calcium hydroxide will fall into the screen frame 201. With the back and forth sliding of the screen frame 201, the crushed calcium hydroxide can be screened by size and separated into powder, and the calcium hydroxide particles larger than the mesh of the screen frame 201 will slide out along the screen frame 201, while the too small powdery calcium hydroxide will fall down along the mesh of the screen frame 201 to the lower end, where a receiving container is placed for receiving.

[0036] In summary, in this embodiment of the present invention, the power for the screening operation comes from the power generated when the crushing wheel 105 is driven to rotate by the reduction motor 106. By using part of the crushing power for the screening operation, there is no need to set up a separate power source for screening, which makes full use of the existing power of the equipment, improves the energy utilization rate of the equipment, and helps to reduce the operating cost of the equipment.

[0037] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A high efficiency crushing and screening apparatus for food grade calcium hydroxide feedstock, characterized by: Including the mounting bracket (1), the mounting bracket (1) upper surface is fixedly installed with the connecting barrel (104), the connecting barrel (104) is rotatably installed with two groups of crushing wheels (105), and the two groups of crushing wheels (105) are horizontally opposite; Wherein, the mounting bracket (1) is fixedly installed with two groups of connecting plates (101), two groups of the connecting plates (101) are downwardly inclined at 25°, and the inner side of two groups of the connecting plates (101) is provided with a guide groove (103), and two groups of the guide groove (103) are slidably installed with a screening mechanism (2).

2. A high efficiency crushing and screening apparatus for food grade calcium hydroxide raw material as claimed in claim 1, wherein: One group of the crushing wheel (105) is fixedly connected with the output shaft of the speed reducer motor (106), and the speed reducer motor (106) is fixedly installed on the upper surface of the mounting bracket (1).

3. A high efficiency crushing and screening apparatus for food grade calcium hydroxide raw material as claimed in claim 2, wherein: The transmission column of the other end of the two groups of crushing wheels (105) penetrates out from the connecting barrel (104) and is fixedly installed with a gear (107) at the end, and the two groups of gears (107) are engaged.

4. A high efficiency crushing and screening apparatus for food grade calcium hydroxide raw material as claimed in claim 3, wherein: When the gear (107) is driven to rotate by the speed reducer motor (106), the crushing wheel (105) can drive the gear (107) of the other group of crushing wheels (105) through the gear (107) engagement, thereby realizing the synchronous relative rotation of the two groups of gears (107), and the calcium hydroxide raw material can be crushed into particles with a size equal to the distance between the two groups of crushing wheels (105).

5. A high efficiency crushing and screening apparatus for food grade calcium hydroxide raw material as claimed in claim 1, wherein: The screening mechanism (2) includes a screen frame (201), the screen frame (201) is installed with a screen at the bottom, the screen frame (201) is fixedly installed with a guide block (202) on both sides, the screen frame (201) is slidably installed in the guide groove (103) of the two groups of connecting plates (101) through the guide block (202) on both sides, and the screen frame (201) is flush with the lower end of the connecting barrel (104).

6. A high efficiency crushing and screening apparatus for food grade calcium hydroxide raw material as claimed in claim 1, wherein: The connecting plate (101) is rotatably installed with a first transmission disc (204) at one end, the first transmission disc (204) is sleeved with a transmission belt (205) on the outer surface, the other end of the transmission belt (205) is sleeved on the outer surface of the second transmission disc (203), the second transmission disc (203) is fixedly installed at one end of one group of gears (107), the first transmission disc (204) is rotatably installed with a connecting arm (206) at one end, the other end of the connecting arm (206) is rotatably installed on the outer surface of the rotating rod (207), the rotating rod (207) is fixedly installed on one end of the guide block (202), and the rotating rod (207) penetrates out from the push port (102), the push port (102) is provided on one end of the connecting plate (101), and the push port (102) is flush with the guide groove (103).

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