Paper pulp raw material crushing device

Abstract

The utility model discloses a paper pulp raw material crushing device which comprises an equipment support and a pre-shearing assembly, the bottom of the pre-shearing assembly and the top of the equipment support are installed through bolts, a feeding hopper is fixedly installed on the top of the pre-shearing assembly, the pre-shearing assembly comprises a shearing machine box, a gear and a shearing roller, and stand columns are fixedly installed at the four corners of the bottom of the shearing machine box. The middle of the top of the shearing machine box is fixedly connected with the outer surface of the bottom end of the feeding hopper in a sleeving mode, a housing is fixedly installed on the side face of the shearing machine box, a first motor is fixedly installed on the surface of the housing, the multiple gears are arranged, the output end of the first motor is fixedly connected with the middle of one gear in a sleeving mode through a shaft rod, and the three shearing rollers are rotationally installed in the shearing machine box. The end parts of the three shearing rollers are fixedly sleeved with the inner surfaces of the middle parts of the three gears respectively; and through pre-crushing treatment of structures such as the pre-shearing assembly, the effect of reducing the fiber connecting length of the paperboard raw materials is achieved, and the blocking condition during subsequent treatment of the grinding and crushing assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of pulp crushing devices, and more specifically, to a pulp raw material crushing device. Background Technology

[0002] Pulp raw materials refer to natural fibrous materials used in the production of paper and paperboard, mainly divided into two categories: wood fibers and non-wood fibers. Pulp raw material crushing equipment is a key piece of equipment for breaking these raw materials into smaller pieces for subsequent processing and pulping. However, in practical applications, some pulp crushing equipment still faces some problems. For example, in some common operations, raw materials are crushed into pulp using crushing discs that rub against each other. However, compared to pre-treated and sheared paper sheets, larger paperboard raw materials, when fed into a disc crusher, are prone to getting stuck in the feed inlet or crushing chamber due to their longer fiber connections, causing blockages. This requires shutdown for cleaning, affecting production continuity and efficiency. While pre-treating the pulp raw materials with additional equipment can solve the blockage problem, it also adds extra steps and reduces the continuity of the production process. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pulp raw material crushing device to solve the problem that when large paperboard raw materials are fed into a disc crusher, the long fibers are easy to get stuck in the feed inlet or crushing chamber, resulting in blockage and shutdown for cleaning, which affects the continuity and efficiency of production, while pretreatment will add extra steps.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pulp raw material crushing device, comprising...

[0005] Equipment bracket;

[0006] A pre-shearing assembly is bolted to the bottom of the equipment support and has a feed hopper fixedly mounted on its top. The pre-shearing assembly includes a shearing housing, gears, and shearing rollers. Columns are fixedly mounted at the four corners of the bottom of the shearing housing, and the bottoms of these columns are bolted to the upper surfaces of the four corners of the equipment support. The middle of the top of the shearing housing is fixedly sleeved to the outer surface of the bottom of the feed hopper. A cover is fixedly mounted on the side of the shearing housing, and a motor is fixedly mounted on the surface of the cover. Several gears are provided, and the output end of the motor is fixedly sleeved to the middle of one of the gears via a shaft. Three shearing rollers are rotatably mounted inside the shearing housing, and the ends of the three shearing rollers are respectively fixedly sleeved to the inner surfaces of the middle of the three gears.

[0007] The equipment also includes a grinding and crushing component, a material-supporting ring groove, and a discharge port. The grinding and crushing component is located in the middle of the equipment support. The bottom of the material-supporting ring groove is fixedly installed with the support plate at the bottom of the equipment support. The side edge of the material-supporting ring groove has a discharge port.

[0008] The system comprises six gears in total. Four of the gears are arranged in parallel and mesh with each other in pairs. The middle part of the two gears at both ends is fixedly sleeved with the ends of the two parallel shearing rollers. One of the remaining two gears is fixedly sleeved with the end of the shearing roller at the bottom, and meshes with the gear above through the other gear. The remaining gears are driven by the gear sleeved with the output end of the motor.

[0009] The grinding and crushing assembly includes a feeding hopper, an upper grinding disc, a supporting base, and a lower grinding mechanism. The outer surface of the top of the feeding hopper is fixedly sleeved with the inner surface of the bottom of the shearing machine box, and the outer surface of the bottom is in contact with the middle of the top of the equipment support and the top of the upper grinding disc. The outer surface of the top of the upper grinding disc is fixedly installed with the inner surface of the top of the equipment support. The lower grinding mechanism is located inside the upper grinding disc, and the bottom of the supporting base is fixedly installed with the upper surface of the bottom of the material receiving ring groove.

[0010] The lower grinding mechanism includes a lower grinding disc, a vertical plate, a second motor, and a scraper. A connecting column is fixedly installed at the bottom of the lower grinding disc. The outer surface of the top of the connecting column is rotatably installed with the inner surface of the support base and the middle of the material-bearing ring groove. A worm gear is fixedly sleeved at the bottom of the connecting column. The vertical plate is located at the bottom of the support plate at the bottom of the material-bearing ring groove. A worm is rotatably installed in the middle of the vertical plate. The worm meshes with the worm gear. The middle of the worm is fixedly sleeved with the output end of the second motor. The side of the second motor is fixedly installed with the surface of the vertical plate. The top of the scraper is fixedly installed with the bottom of the lower grinding disc, and its outer surface is movably installed with the inner wall at the junction of the material-bearing ring groove and the support base.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In the above scheme, by setting up a pre-shearing component, during the process of crushing paperboard raw materials into pulp, the workers first feed the paperboard and other raw materials into the pre-shearing component through the feed hopper, and start motor one. The gear and shearing roller connected to the output end of motor one begin to rotate. At the same time, the parallel shearing rollers rotate in opposite directions to the shearing roller near the output end of motor one under the transmission action of the meshing gears. The paperboard raw materials are cut and divided into smaller paper pieces by the lower shearing roller, that is, the three rotating shearing rollers in total. Afterwards, the paper pieces fall along the inner wall of the feed hopper into the upper grinding disc for further crushing. Thus, by using the pre-crushing treatment of the pre-shearing component and other structures, the fiber connection length of the paperboard raw materials is reduced, thereby reducing the possibility of clogging during the subsequent grinding and crushing process.

[0013] In the above scheme, by setting up a grinding and crushing component, after the paper raw material falls into the upper grinding disc along the hopper, the second motor is started, and the worm gear connected to the output end of the second motor rotates, driving the meshing worm wheel to rotate, so that the lower grinding disc connected by the connecting column rotates against the upper surface of the support base, and grinds and crushes the raw material inside the junction of the top of the lower grinding disc and the bottom of the upper grinding disc. During the crushing process, smaller fiber pulp falls along the interlacing gaps inside the lower and upper grinding discs (existing structure, not shown in the figure) into the ring groove formed by the material receiving ring groove and the support base. While the lower grinding disc rotates, the scraper set on its edge will rotate along the inner wall of the material receiving ring groove and the support base, thereby scraping the pulp to the discharge port for discharge, improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the pre-shearing component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the grinding and crushing component, the material receiving ring groove, the discharge port, etc. of this utility model;

[0017] Figure 4 This is a schematic diagram of the lower grinding mechanism of this utility model.

[0018] [Figure Labels]

[0019] 1. Equipment support frame; 2. Feed hopper; 3. Pre-shearing assembly; 4. Grinding and crushing assembly; 5. Material receiving ring groove; 6. Discharge port; 30. Shearing machine box; 31. Column; 32. Cover; 33. Motor 1; 34. Gear; 35. Shearing roller; 40. Feed hopper; 41. Upper grinding disc; 42. Support base; 43. Lower grinding mechanism; 430. Lower grinding disc; 431. Connecting column; 432. Vertical plate; 433. Worm gear; 434. Motor 2; 435. Worm wheel; 436. Scraper. Detailed Implementation

[0020] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides a pulp raw material crushing device, including...

[0022] Equipment bracket 1;

[0023] The pre-shearing assembly 3 is bolted to the top of the equipment support 1 at its bottom. The feed hopper 2 is fixedly installed on the top of the pre-shearing assembly 3. The pre-shearing assembly 3 includes a shearing box 30, gears 34, and shearing rollers 35. Columns 31 are fixedly installed at the four corners of the bottom of the shearing box 30. The bottom of the columns 31 is bolted to the upper surface of the four corners of the equipment support 1. The middle part of the top of the shearing box 30 is fixedly sleeved with the outer surface of the bottom of the feed hopper 2. A cover 32 is fixedly installed on the side of the shearing box 30. A motor 33 is fixedly installed on the surface of the cover 32. Several gears 34 are provided. The output end of the motor 33 is fixedly sleeved with the middle part of one gear 34 through a shaft. Three shearing rollers 35 are rotatably installed inside the shearing box 30. The ends of the three shearing rollers 35 are fixedly sleeved with the inner surfaces of the middle parts of the three gears 34, respectively.

[0024] It also includes a grinding and crushing component 4, a material-bearing ring groove 5, and a discharge port 6. The grinding and crushing component 4 is located in the middle of the equipment support 1. The bottom of the material-bearing ring groove 5 is fixedly installed with the support plate at the bottom of the equipment support 1. The side edge of the material-bearing ring groove 5 is provided with a discharge port 6.

[0025] There are six gears 34 in total. Four of the gears 34 are arranged in parallel and mesh with each other in pairs. The middle part of the two gears 34 at both ends is fixedly sleeved with the ends of the two parallel shearing rollers 35. One of the remaining two gears 34 is fixedly sleeved with the end of the shearing roller 35 at the bottom, and meshes with the gear 34 above through the other gear 34. The remaining gears 34 are driven by the gear 34 sleeved with the output end of the motor 33.

[0026] The grinding and crushing assembly 4 includes a feeding hopper 40, an upper grinding disc 41, a supporting base 42, and a lower grinding mechanism 43. The outer surface of the top of the feeding hopper 40 is fixedly sleeved with the inner surface of the bottom of the shearing box 30, and the outer surface of the bottom is in contact with the middle of the top of the equipment support 1 and the top of the upper grinding disc 41. The outer surface of the top of the upper grinding disc 41 is fixedly installed with the inner surface of the top of the equipment support 1. The lower grinding mechanism 43 is located inside the upper grinding disc 41. The bottom of the supporting base 42 is fixedly installed with the upper surface of the bottom of the material receiving ring groove 5.

[0027] The lower grinding mechanism 43 includes a lower grinding disc 430, a vertical plate 432, a second motor 434, and a scraper 436. A connecting column 431 is fixedly installed at the bottom of the lower grinding disc 430. The outer surface of the top of the connecting column 431 is rotatably installed with the inner surface of the support base 42 and the middle of the material bearing ring groove 5. A worm gear 435 is fixedly sleeved at the bottom of the connecting column 431. The vertical plate 432 is set at the bottom of the support plate at the bottom of the material bearing ring groove 5. A worm 433 is rotatably installed in the middle of the vertical plate 432. The worm 433 meshes with the worm gear 435. The middle of the worm 433 is fixedly sleeved with the output end of the second motor 434. The side of the second motor 434 is fixedly installed with the surface of the vertical plate 432. The top of the scraper 436 is fixedly installed with the bottom of the lower grinding disc 430, and its outer surface is movably installed with the inner wall at the junction of the material bearing ring groove 5 and the support base 42.

[0028] By setting up the grinding and crushing component 4, after the paper raw material falls into the upper grinding disc 41 along the feed hopper 40, the second motor 434 is started. The worm gear 433 connected to the output end of the second motor 434 rotates, driving the meshing worm wheel 435 to rotate. This causes the lower grinding disc 430, connected by the connecting column 431, to rotate against the upper surface of the support base 42, grinding and crushing the raw material inside the junction of the top of the lower grinding disc 430 and the bottom of the upper grinding disc 41. During the crushing process, smaller fiber pulp falls along the intersecting gaps (existing structure, not shown in the figure) inside the lower grinding disc 430 and the upper grinding disc 41 into the ring groove formed by the material receiving ring groove 5 and the support base 42. While the lower grinding disc 430 rotates, the scraper 436 set on its edge rotates along the inner wall of the material receiving ring groove 5 and the support base 42, thereby scraping the pulp to the discharge port 6 for discharge, improving the practicality of the device.

[0029] The working process of this utility model is as follows:

[0030] In the process of crushing paperboard raw materials into pulp, the workers first feed the paperboard and other raw materials into the pre-shearing assembly 3 through the feed hopper 2, and start the motor 33. The gear 34 and the shearing roller 35, which are connected to the output end of the motor 33, begin to rotate. At the same time, the parallel shearing roller 35 rotates in opposite directions to the shearing roller 35 near the output end of the motor 33 under the transmission action of the meshing gear 34. The paperboard raw materials are cut and divided into smaller paper pieces by the lower shearing roller 35, that is, the three rotating shearing rollers 35. After that, the paper pieces fall along the inner wall of the feed hopper 40 into the upper grinding disc 41 for further crushing. In this way, the pre-crushing treatment of the pre-shearing assembly 3 and other structures reduces the fiber connection length of the paperboard raw materials, thereby reducing the possibility of clogging during the subsequent grinding and crushing assembly 4.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulp raw material crushing device characterized by comprising: The utility model relates to a shearing machine, including Device support (1); Pre -shear assembly (3), the bottom of pre -shear assembly (3) is bolted with the top of device support (1), the top of pre -shear assembly (3) is fixedly installed with the inlet hopper (2), pre -shear assembly (3) includes shearing machine box (30), gear (34), shear roll (35), the bottom of shearing machine box (30) four corners is fixedly installed with stand (31), the bottom of stand (31) is bolted with the upper surface of the four corners of device support (1), the top of shearing machine box (30) and the outer surface of the bottom end of inlet hopper (2) fixed sleeve joint in the middle part, the side of shearing machine box (30) is fixedly installed with cover (32), the surface of cover (32) is fixedly installed with motor one (33), gear (34) is provided with several, the output end of motor one (33) and the middle part of one gear (34) are fixed sleeve joint through the shaft, three shear rolls (35) are rotatably installed in the inside of shearing machine box (30), and the end of three shear rolls (35) is fixed sleeve joint with the inner surface of the middle part of three gears (34) respectively.

2. The paper pulp feedstock crushing device according to claim 1, characterized in that Still including grinding and crushing assembly (4), material receiving annular groove (5), discharge port (6), grinding and crushing assembly (4) is arranged in the middle part of device support (1), the bottom of material receiving annular groove (5) is fixedly installed with the supporting plate of the bottom of device support (1), and the side edge of material receiving annular groove (5) is provided with discharge port (6).

3. The paper stock breaking device according to claim 1, characterized in that Six gears (34) are provided, wherein four gears (34) are arranged in parallel, are engaged with each other, and the middle part of two gears (34) at both ends is fixedly sleeved with the end of two shear rolls (35) arranged in parallel, one of the remaining two gears (34) is fixedly sleeved with the end of the shear roll (35) arranged at the bottom, and is engaged with the gear (34) above through another gear (34), and the remaining gears (34) are driven and connected through the gear (34) sleeved with the output end of motor one (33).

4. The paper stock breaking device according to claim 2, characterized in that The grinding and crushing assembly (4) includes a lower hopper (40), an upper grinding disc (41), a supporting base (42), and a lower grinding mechanism (43). The outer surface of the top of the lower hopper (40) is fixedly sleeved with the inner surface of the bottom of the shearing machine box (30), and the outer surface of the bottom is fitted with the middle part of the top of the device support (1) and the top of the upper grinding disc (41). The outer surface of the top of the upper grinding disc (41) is fixedly installed with the inner surface of the top of the device support (1). The lower grinding mechanism (43) is arranged inside the upper grinding disc (41). The bottom of the supporting base (42) is fixedly installed with the upper surface of the bottom of the material receiving annular groove (5).

5. The paper stock breaking device according to claim 4, characterized in that The lower mill mechanism (43) includes a lower mill disc (430), a vertical plate (432), a motor two (434), a scraper (436), the bottom of the lower mill disc (430) is fixedly installed with a connecting column (431), the outer surface of the top end of the connecting column (431) is rotatably installed with a bearing base (42) and the inner surface of the middle part of a material bearing ring groove (5), the bottom of the connecting column (431) is fixedly sleeved with a worm wheel (435), the vertical plate (432) is arranged at the bottom of the bearing plate at the bottom of the material bearing ring groove (5), the middle part of the vertical plate (432) is rotatably installed with a worm (433), the worm (433) is engaged with the worm wheel (435), the middle part of the worm (433) is fixedly sleeved with the output end of the motor two (434), the side surface of the motor two (434) is fixedly installed with the surface of the vertical plate (432), and the top end of the scraper (436) is fixedly installed with the bottom of the lower mill disc (430), and the outer surface is movably installed with the inner wall of the intersection of the material bearing ring groove (5) and the bearing base (42).

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