Drying and crushing equipment with secondary crushing function

Abstract

The utility model discloses drying and crushing equipment with a secondary crushing function, which relates to the technical field of material crushing and comprises a shell, a main protective plate is fixedly mounted in the shell, a sliding protective plate is mounted on the shell in a sliding manner, the main protective plate and the sliding protective plate form a crushing chamber, an adjusting screw rod is rotatably mounted on the outer side of the shell, and the adjusting screw rod is rotatably mounted on the outer side of the shell. The adjusting lead screw is connected with the sliding protection plate through threads, the size of the smashing cavity can be adjusted by rotating the adjusting lead screw, a main rolling gear is arranged in the smashing cavity, an auxiliary rolling gear is further arranged in the smashing cavity, the main rolling gear is meshed with the auxiliary rolling gear, and the auxiliary rolling gear is meshed with the adjusting lead screw. According to the device, the distance between the main rolling gear and the auxiliary rolling gear is adjusted through the adjusting lead screw, so that the device adapts to congealed material balls with different sizes, meanwhile, the size of primarily crushed particles can be changed, and excessive material powder is avoided.

Description

Technical Field

[0001] This utility model relates to the field of material crushing technology, specifically a drying and crushing equipment with a two-stage crushing function. Background Technology

[0002] In many industrial production processes today, material crushing is a crucial step, widely used in chemical, building materials, metallurgy, food and other fields. For example, in the chemical industry, the degree of crushing of raw materials directly affects the efficiency of chemical reactions and product quality; in the building materials field, the crushing and processing of materials determines the performance and quality of the final product.

[0003] The physical properties of materials change under different production conditions and environments. In particular, differences in moisture content can cause materials to agglomerate into clumps of varying sizes. Many existing crushing equipment lacks an effective adaptive adjustment mechanism when faced with such unevenly sized clumps, and cannot perform precise crushing operations based on the actual size of the clumps. At the same time, excessively fine crushing does not meet the requirements for particle size, resulting in excessive powder in the material particles, which in turn affects product quality. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes the following technical solution:

[0005] A drying and pulverizing device with a two-stage crushing function includes a shell, a main guard plate fixedly installed inside the shell, and a sliding guard plate slidably installed on the shell. The main guard plate and the sliding guard plate form a pulverizing chamber. An adjusting screw is rotatably installed on the outside of the shell. The adjusting screw is threadedly connected to the sliding guard plate. Rotating the adjusting screw can adjust the size of the pulverizing chamber.

[0006] Furthermore, a main grinding gear and a secondary grinding gear are provided in the grinding chamber. The main grinding gear and the secondary grinding gear mesh with each other and can grind materials together. The main grinding gear is rotatably connected to the outer shell, and the secondary grinding gear is rotatably connected to the sliding guard plate. The distance between the main grinding gear and the secondary grinding gear can be adjusted by adjusting the lead screw, thereby adjusting the size of the crushed particles.

[0007] Furthermore, a swing screen is rotatably installed inside the outer casing, and the swing screen is positioned directly below the crushing chamber. A sliding plate is slidably installed on the swing screen. A servo motor is fixedly installed on the outer side of the swing screen. A misaligned lead screw is fixedly installed on the output shaft of the servo motor. The misaligned lead screw is threadedly connected to the sliding plate. A crank disc is rotatably installed inside the outer casing.

[0008] Furthermore, the oscillating screen is provided with filter holes, and the sliding plate is provided with closed holes. In the initial state, the filter holes on the oscillating screen are aligned with the closed holes on the sliding plate. When the filter holes are aligned with the closed holes, the oscillating screen is in its coarsest filtration state. When the closed holes on the sliding plate are misaligned with the filter holes on the oscillating screen, the amount of material that can pass through will be reduced accordingly.

[0009] Furthermore, a central rod is rotatably mounted on the crank disc, and the central rod is rotatably connected to the oscillating screen disc. The connection between the oscillating screen disc and the central rod is away from the shaft connecting the oscillating screen disc and the outer casing. The rotation of the crank disc is used to make the oscillating screen disc oscillate back and forth, thereby moving the material on the oscillating screen disc.

[0010] Furthermore, a secondary crushing box is fixedly installed inside the outer shell. A rubber cover is fixedly installed at one end of the secondary crushing box, and multiple secondary rolling wheels are rotatably installed inside the secondary crushing box for secondary crushing of the material.

[0011] Compared with the prior art, the advantages of this utility model are: (1) This device adjusts the distance between the main gear and the auxiliary gear by adjusting the screw, so as to adapt to the material agglomeration into different sizes, and at the same time, it can change the size of the initial crushed particles, thereby avoiding the appearance of too much material powder; (2) This device controls the size of the material particles screened by adjusting the misalignment distance between the filter hole and the closed hole, thereby expanding the applicable range and usage environment of this device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the sliding guard plate structure of this utility model.

[0014] Figure 3 This is a cross-sectional structural diagram of the main guard plate, sliding guard plate, main storage tank, auxiliary storage tank, swing screen, rubber cover, and main guard plate of this utility model.

[0015] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle.

[0016] Figure 5 This is a schematic diagram of the adjusting screw structure of this utility model.

[0017] Figure 6 This is a cross-sectional structural diagram of the rubber cover and secondary crushing box of this utility model.

[0018] Figure 7 This is a schematic diagram of the oscillating screen, sliding plate, servo motor, and misaligned lead screw structure of this utility model.

[0019] Reference numerals: 101-Outer shell; 102-Main guard plate; 103-Sliding guard plate; 104-Main storage tank; 105-Secondary storage tank; 106-Secondary conveying device; 107-Main conveying device; 201-Main gear; 202-Secondary gear; 203-Adjusting screw; 301-Crank disc; 302-Intermediate rod; 303-Oscillating screen; 304-Sliding plate; 305-Servo motor; 306-Offset screw; 401-Rubber cover; 402-Secondary crushing box; 403-Secondary rolling wheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] like Figures 1 to 3 As shown, a drying and pulverizing device with a two-stage crushing function includes a shell 101. A main storage tank 104 is provided on one side of the shell 101, and a secondary storage tank 105 is provided inside the shell 101. The main storage tank 104 and the secondary storage tank 105 are used to collect materials of different particle sizes. A main guard plate 102 is fixedly installed inside the shell 101, and a sliding guard plate 103 is slidably installed on the shell 101. The main guard plate 102 and the sliding guard plate 103 form a pulverizing chamber. An adjusting screw 203 is rotatably installed on the outside of the shell 101. The adjusting screw 203 is threadedly connected to the sliding guard plate 103. Rotating the adjusting screw 203 can adjust the size of the pulverizing chamber.

[0022] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a main grinding gear 201 and a secondary grinding gear 202 are provided in the grinding chamber. The main grinding gear 201 and the secondary grinding gear 202 mesh with each other, and the main grinding gear 201 and the secondary grinding gear 202 cooperate to grind the material. The main grinding gear 201 is rotatably connected to the outer shell 101, and the secondary grinding gear 202 is rotatably connected to the sliding guard plate 103. The distance between the main grinding gear 201 and the secondary grinding gear 202 can be adjusted by adjusting the lead screw 203, so as to adapt to the agglomeration of material clumps of different sizes, and at the same time, it can also change the size of the initial crushed particles, thereby avoiding the appearance of too much material powder.

[0023] like Figures 2 to 7As shown, a swing screen 303 is rotatably installed inside the outer casing 101. The swing screen 303 is located directly below the crushing chamber. A sliding plate 304 is slidably installed on the swing screen 303. A servo motor 305 is fixedly installed on the outside of the swing screen 303. A misaligned lead screw 306 is fixedly installed on the output shaft of the servo motor 305. The misaligned lead screw 306 is threadedly connected to the sliding plate 304. The swing screen 303 is provided with filter holes, and the sliding plate 304 is provided with closed holes. In the initial state, the filter holes on the swing screen 303 are aligned with the closed holes on the sliding plate 304. When the filter holes and closed holes are aligned, the swing screen 303 is in its coarsest filtration state. When the misaligned lead screw 306 rotates, causing the closed holes on the sliding plate 304 to be misaligned with the filter holes on the swing screen 303, the size of the material that can pass through is reduced.

[0024] like Figure 2 and Figure 3 As shown, a crank disc 301 is rotatably mounted inside the outer casing 101, and an intermediate rod 302 is rotatably mounted on the crank disc 301. The intermediate rod 302 is rotatably connected to the swing screen disc 303. The connection between the swing screen disc 303 and the intermediate rod 302 is away from the connecting shaft between the swing screen disc 303 and the outer casing 101. The rotation of the crank disc 301 is used to make the swing screen disc 303 swing back and forth, thereby moving the material on the swing screen disc 303.

[0025] like Figure 2 , Figure 3 , Figure 6 As shown, a main conveying device 107 is provided on the outer casing 101. The main conveying device 107 is located directly below the oscillating screen 303. The main conveying device 107 is used to collect the material falling from the oscillating screen 303. When working, the main conveying device 107 will send the material falling from the oscillating screen 303 into the main storage tank 104 for storage.

[0026] like Figure 2 , Figure 3 , Figure 6 As shown, a secondary crushing box 402 is also fixedly installed inside the outer shell 101. A rubber cover 401 is fixedly installed at one end of the secondary crushing box 402 near the oscillating screen 303. The rubber cover 401 is in contact with the oscillating screen 303. The material outlet section on the oscillating screen 303 is located inside the rubber cover 401. When the material on the oscillating screen 303 does not pass through the filter holes and the sealing holes, it will fall into the rubber cover 401 and the secondary crushing box 402. Multiple secondary rollers 403 are rotatably installed inside the secondary crushing box 402 for secondary crushing of the material. The multiple secondary rollers 403 mesh with each other. The distance between the secondary rollers 403 can only be changed by changing the size of the secondary rollers 403.

[0027] like Figure 2 , Figure 3 , Figure 6 As shown, a secondary conveying device 106 is provided on the outer shell 101. The secondary conveying device 106 is located directly below the secondary crushing box 402. The secondary conveying device 106 is used to send the material falling from the secondary crushing box 402 into the secondary storage box 105.

[0028] During the operation of this device, material is continuously fed into the crushing chamber from above the main guard plate 102 and the sliding guard plate 103. Then, the motor is started to drive the main grinding gear 201 and the auxiliary grinding gear 202 to crush the material. The main grinding gear 201, during operation... Figure 3 The middle gear rotates clockwise, while the secondary gear 202 rotates clockwise. Figure 3 The screen rotates counterclockwise, crushing any clumps of material. The material then falls onto the oscillating screen disc 303. Meanwhile, an external motor drives the crank disc 301 to rotate, causing the oscillating screen disc 303 to oscillate within the outer casing 101. This causes the material on the oscillating screen disc 303 to continuously tumble. Because the oscillating screen disc 303 is tilted within the outer casing 101, the material on it will tumble on its own. If the material falling onto the oscillating screen disc 303 is smaller than the channel formed by the filter holes and the closed holes, it will fall onto the main conveyor. After being placed on 107, the material is transported to the main storage tank 104 for storage. If the material on the oscillating screen 303 does not pass through the filter holes and sealing holes, it will fall into the rubber cover 401 and the secondary crushing box 402. The secondary roller 403 in the secondary crushing box 402 will further crush the material in the secondary crushing box 402. The particles crushed by the secondary roller 403 will enter the secondary storage tank 105 for storage through the auxiliary conveying device 106. The sieving by the oscillating screen 303 allows the device to further crush larger particles, while avoiding secondary crushing of smaller particles, thus reducing the probability of powder formation.

[0029] When this device is used to crush materials of different particle sizes, or when there is a serious agglomeration of materials in a batch, and it is necessary to avoid excessive powder, it is necessary to adjust the distance between the main gear 201 and the auxiliary gear 202 in advance. It is also necessary to adjust the misalignment between the filter hole and the sealing hole. When it is necessary to reduce powder, the channel formed by the filter hole and the sealing hole is generally set to the maximum. When controlling the particle size after crushing, the misalignment distance between the filter hole and the sealing hole can be adjusted. This expands the applicability and operating environment of this device.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A dry pulverizing apparatus with a secondary crushing function, comprising a housing (101), characterized in that: A main guard plate (102) is fixedly installed inside the outer shell (101), and a sliding guard plate (103) is slidably installed on the outer shell (101). The main guard plate (102) and the sliding guard plate (103) form a crushing chamber. An adjusting screw (203) is rotatably installed on the outside of the outer shell (101). The adjusting screw (203) is connected to the sliding guard plate (103) by a thread. The size of the crushing chamber can be adjusted by rotating the adjusting screw (203). The crushing chamber is provided with a main crushing gear (201) and a secondary crushing gear (202). The main crushing gear (201) and the secondary crushing gear (202) mesh with each other. The main crushing gear (201) and the secondary crushing gear (202) can crush materials by working together. The main crushing gear (201) is rotatably connected to the outer shell (101). The secondary crushing gear (202) is rotatably connected to the sliding guard plate (103). The secondary crushing gear (202) can adjust the distance between the main crushing gear (201) and the secondary crushing gear (202) by adjusting the lead screw (203), thereby crushing the particle size.

2. The dry pulverizing apparatus with a secondary crushing function according to claim 1, characterized in that: A swing screen (303) is rotatably installed inside the outer casing (101). The swing screen (303) is located directly below the crushing chamber. A sliding plate (304) is slidably installed on the swing screen (303). A servo motor (305) is fixedly installed on the outside of the swing screen (303). A misaligned lead screw (306) is fixedly installed on the output shaft of the servo motor (305). The misaligned lead screw (306) is threadedly connected to the sliding plate (304). A crank disc (301) is rotatably installed inside the outer casing (101).

3. The dry pulverizing apparatus with a secondary crushing function according to claim 2, characterized in that: The oscillating screen (303) is provided with filter holes, and the sliding plate (304) is provided with sealing holes. In the initial state, the filter holes on the oscillating screen (303) are aligned with the sealing holes on the sliding plate (304). When the filter holes and sealing holes are aligned, the oscillating screen (303) is in the coarsest filtration state. When the sealing holes on the sliding plate (304) are misaligned with the filter holes on the oscillating screen (303), the amount of material that can pass through will be reduced accordingly.

4. The dry pulverizing apparatus having a secondary crushing function according to claim 2, wherein: A middle rod (302) is rotatably mounted on the crank disc (301). The middle rod (302) is rotatably connected to the swing screen disc (303). The connection between the swing screen disc (303) and the middle rod (302) is away from the connecting shaft between the swing screen disc (303) and the outer casing (101). The rotation of the crank disc (301) is used to make the swing screen disc (303) swing back and forth, thereby moving the material on the swing screen disc (303).

5. The dry pulverizing apparatus having a secondary crushing function according to claim 2, wherein: A secondary crushing box (402) is also fixedly installed inside the outer shell (101). A rubber cover (401) is fixedly installed at one end of the secondary crushing box (402). Multiple secondary rolling wheels (403) are rotatably installed inside the secondary crushing box (402) for secondary crushing of materials.

Images