Gypsum crushing device

Abstract

The utility model discloses a gypsum crushing device. The gypsum crushing device is characterized in that a case I is provided with a feed port and a discharge port; two crushing rollers with opposite rotating directions are horizontally and rotatably supported in the case I, and the crushing rollers are arranged between the feed port and the discharge port; crushing teeth are fixed on the outer side walls of the crushing rollers; the driver I is in transmission connection with the two crushing rollers; the second machine box is provided with an oversize product discharging port and an undersize product discharging port, a conical screen drum with the two ends open is horizontally and rotationally supported on the inner side of the second machine box, screen holes are formed in the side wall of the conical screen drum, the discharging port is communicated with the small-caliber end of the conical screen drum, and the second driver is in transmission connection with the conical screen drum. The partition plate divides the interior of the second machine box into a first cavity and a second cavity, the screen holes are located in the first cavity, the screen underflow discharging port is communicated with the first cavity, a hole is formed in the partition plate, a conical screen drum is inserted into the partition plate, and the screen overflow discharging port is communicated with the second cavity. The gypsum crushing and screening device can effectively crush and screen gypsum, the crushing and screening assembly is simple and reliable in structure, and the gypsum crushing and screening effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gypsum crushing, more specifically to a gypsum crushing device. BACKGROUND

[0002] Calcium sulfate whisker is a loose fibrous white powder, which has smooth surface, stable structure and certain aspect ratio. Calcium sulfate whisker is low in price and widely used, and has been widely concerned at home and abroad in recent years. It has excellent performance and is applied in many fields, such as plastics, rubber, cement, papermaking, coating and the like.

[0003] At present, the raw materials for preparing calcium sulfate whisker at home and abroad mainly use natural gypsum, phosphogypsum and desulfurization gypsum. In order to prepare high-quality calcium sulfate whisker and make full use of gypsum resources, the gypsum needs to be ground into powder during the preparation of calcium sulfate whisker, and the existing gypsum crusher has complex structure and cannot completely crush the gypsum during crushing. The screening effect of the crushed gypsum is not good, and the oversize material cannot be collected and repeatedly crushed. At the same time, a large amount of dust is generated during the crushing of gypsum, which affects the health of operators.

[0004] Therefore, how to provide a gypsum crushing device that can overcome the above problems is a problem that technicians in the field need to solve urgently. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a gypsum crushing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A gypsum crushing device comprises:

[0008] A crushing assembly comprises a machine box one, crushing rollers, crushing teeth and a driving machine one, the upper and lower ends of the machine box one are respectively provided with a feeding port and a discharging port; two crushing rollers are horizontally rotatably supported in the machine box one, the shaft center lines of the two crushing rollers are parallel to each other, the feeding port is located between the shaft center lines of the two crushing rollers, and the crushing rollers are arranged between the feeding port and the discharging port; a plurality of crushing teeth are uniformly fixed on the outer side walls of the crushing rollers; the driving machine one is in driving connection with the two crushing rollers, and the two crushing rollers rotate in opposite directions;

[0009] The screening assembly comprises a machine box two, a driving machine two, a conical screen cylinder and a partition plate, the machine box two is provided with an oversize discharge outlet and an undersize discharge outlet, the machine box one, the driving machine one and the driving machine two are fixed on the machine box two, the conical screen cylinder is horizontally rotatably supported on the inner side of the machine box two, both ends of the conical screen cylinder are open, the side wall of the conical screen cylinder is uniformly provided with a plurality of screen holes, the discharge port is located above the small-diameter end of the conical screen cylinder and is communicated with the discharge port, the driving machine two is drivingly connected with the conical screen cylinder, the partition plate is fixed in the machine box two and divides the machine box two into a cavity one and a cavity two, the screen holes are located in the cavity one, the undersize discharge outlet is communicated with the cavity one, the partition plate is provided with a hole and the conical screen cylinder is inserted into the hole, and the oversize discharge outlet is communicated with the cavity two.

[0010] Compared with the prior art, the gypsum crushing device provided by the utility model has the advantages that two synchronous and opposite rotating crushing rollers are designed, the outer side wall of the crushing roller is fixed with crushing teeth, the gypsum to be crushed falls between the two crushing rollers after entering the machine box one, the gypsum is effectively crushed through the rotation of the two crushing rollers, the crushed gypsum enters the horizontally arranged and rotating conical screen cylinder through the design of the conical screen cylinder, the gypsum in the conical screen cylinder gradually moves to the large-diameter end of the conical screen cylinder, the gypsum passing through the screen hole is the crushed and filtered gypsum, and the gypsum removed from the large-diameter end of the conical screen cylinder is collected and re-enters the machine box one for crushing, the above design ensures that the crushed gypsum can be quickly and effectively screened, and the gypsum not passing through the screen hole can be effectively collected and re-loaded into the machine box one for crushing, thereby improving the utilization rate of the gypsum.

[0011] Preferably, the crushing assembly further comprises a feeding hopper and a discharge chute, the feeding hopper is vertically fixed above the machine box one, the small-diameter end of the feeding hopper corresponds to and is communicated with the feeding port, the discharge chute is inclined relative to the horizontal plane, the upper end of the discharge chute is fixed with the machine box one, the upper end of the discharge chute is communicated with the discharge port, the side wall of the machine box two is provided with a clearance hole, and the lower end of the discharge chute extends into the conical screen cylinder after passing through the clearance hole. The feeding hopper can contain more gypsum to be crushed, and the crushed gypsum can reliably enter the conical screen cylinder.

[0012] Preferably, the crushing assembly further comprises a gear one and a gear two, the gear one and the gear two are arranged outside the machine box one, the gear one and the gear two are respectively coaxially fixed with the two crushing rollers, the gear one is engaged with the gear two, and the output shaft of the driving machine one is coaxially fixed with one of the crushing rollers. The two crushing rollers can synchronously rotate and have opposite directions.

[0013] Preferably, two of the first gears are arranged, and one of the crushing rollers is arranged between the two first gears; and two of the second gears are arranged, and the other crushing roller is arranged between the two second gears. The two crushing rollers can stably rotate.

[0014] Preferably, the screening assembly further comprises a support shaft and a support frame, the support shaft is rotatably supported in the second case, the support shaft is coaxially arranged inside the conical screen cylinder, the support frame is fixed inside the conical screen cylinder, the support frame is fixed with the support shaft, and the output rotating shaft of the second driving machine is coaxially fixed with the support shaft. The second driving machine can be reliably connected with the conical screen cylinder.

[0015] Preferably, the screening assembly further comprises a drawer one, a drawer two, a transparent plate one and a transparent plate two, the drawer one is horizontally and tightly inserted inside the screening material outlet, the large-diameter end of the conical screen cylinder is located above the drawer one, and the large-diameter end of the conical screen cylinder is limited inside the top opening end of the drawer one; the drawer two is horizontally and tightly inserted inside the screened material outlet, the conical screen cylinder is located above the drawer two, and the plurality of screen holes are limited inside the top opening end of the drawer two; the through hole one is formed in the side wall of the second case, the transparent plate one is sealed at the through hole one, and the transparent plate one is located inside the cavity one; the through hole two is formed in the side wall of the second case, the transparent plate two is sealed at the through hole two, and the transparent plate two is located inside the cavity two. The crushed gypsum and the uncrushed gypsum can be reliably collected, and the operator can observe the internal condition of the second case through the transparent plate one and the transparent plate two.

[0016] Preferably, the dust suction assembly further comprises an air extractor and a filter element, the air extractor is fixed on the top of the second case, the air extractor is in communication with the air permeation hole, and the air extractor is in communication with the air permeation hole; and the filter element is fixed inside the second case, and the filter element is in communication with the air permeation hole. The dust generated during the crushing and screening of the gypsum will not fall randomly. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.

[0018] Figure 1 It is a perspective view of the gypsum crushing device;

[0019] Figure 2 is a partial axonometric view of a gypsum breaking device Figure One ;

[0020] Figure 3 is a partial axonometric view of a gypsum breaking device Figure Two ;

[0021] Figure 4 is a partial axonometric view of a gypsum breaking device Figure Three ;

[0022] Figure 5 is a partial axonometric view of a gypsum breaking device Figure Four .

[0023] In the drawings:

[0024] 1 is a machine box, 2 is a breaking roller, 3 is a breaking tooth, 4 is a driving machine one, 5 is a feeding hopper, 6 is a discharging chute, 7 is a gear one, 8 is a gear two, 9 is a machine box two, 90 is a sieve discharge port, 91 is a sieve discharge port, 92 is a ventilation hole, 10 is a driving machine two, 11 is a conical sieve cylinder, 110 is a sieve hole, 12 is a partition plate, 13 is a support shaft, 14 is a support frame, 15 is a drawer one, 16 is a drawer two, 17 is a transparent plate one, 18 is a transparent plate two, 19 is an exhaust fan, and 20 is a filter core. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] The present application discloses a gypsum breaking device, and the gypsum breaking device comprises a machine box one 1, two breaking rollers 2, a driving machine one 4, a feeding hopper 5, a discharging chute 6, a gear one 7, a gear two 8, a machine box two 9, a sieve discharge port 90, a sieve discharge port 91, a ventilation hole 92, a driving machine two 10, a conical sieve cylinder 11, a sieve hole 110, a partition plate 12, a support shaft 13, a support frame 14, a drawer one 15, a drawer two 16, a transparent plate one 17, a transparent plate two 18, an exhaust fan 19 and a filter core 20.

[0027] The gear one 7 and the gear two 8 are designed, and the driving machine one 4 can reliably drive the two breaking rollers 2 to synchronously rotate, so that the rotating speeds of the two breaking rollers 2 are ensured to be the same and the rotating directions of the two breaking rollers 2 are ensured to be opposite.

[0028] By designing a conical screen cylinder 11, the crushed gypsum enters the horizontally arranged and rotating conical screen cylinder 11. The gypsum inside the conical screen cylinder 11 gradually moves towards the large-diameter end of the conical screen cylinder 11. The gypsum that passes through the screen holes 110 is the crushed and filtered gypsum, while the gypsum that moves out from the large-diameter end of the conical screen cylinder 11 is collected and put back into the machine housing 1 for crushing. The above design ensures that the crushed gypsum can be screened quickly and effectively, while the gypsum that does not pass through the screen holes 110 can be effectively collected and put back into the machine housing 1 for crushing, which is beneficial to improving the utilization rate of gypsum.

[0029] By designing the support shaft 13 and support frame 14, the second drive motor 10 can reliably drive the conical screen cylinder 11 to rotate;

[0030] By designing drawer 15 and drawer 26, both the gypsum that has been sieved and the gypsum that has not passed through the sieve hole 110 can be reliably collected.

[0031] By designing transparent panels 17 and 18, the operator can directly observe the operation of the conical sieve cylinder 11 and whether drawers 15 and 16 are full of plaster.

[0032] By designing the dust collection components, negative pressure will be generated inside the first casing 1 and the second casing 9 when the exhaust fan 19 is working. The dust generated when the gypsum is crushed in the first casing 1 and the dust in the second casing 9 can be effectively intercepted by the filter element 20, and the dust generated by the crushing and screening of gypsum will not fall randomly.

[0033] Example

[0034] See appendix Figures 1-5 This is a schematic diagram of the overall and partial structure of one embodiment of the present invention. The present invention specifically discloses a gypsum crushing device, comprising:

[0035] The broken assembly comprises a machine box 1, a broken roller 2, a broken tooth 3 and a drive machine 4. The upper and lower ends of the machine box 1 are respectively provided with an inlet and a discharge port, and the gypsum to be broken is added from the inlet. The machine box 1 is internally horizontally rotatably supported by two cylindrical broken rollers 2. The two broken rollers 2 have parallel axial lines. The two broken rollers 2 have the same length and the end portions are aligned. The inlet is arranged in the middle between the axial lines of the two broken rollers 2. The inlet and the discharge port are arranged with the broken roller 2. The outer side wall of the broken roller 2 is uniformly fixed with a plurality of broken teeth 3. The plurality of broken teeth 3 are sequentially and equidistantly arranged along the length direction of the broken roller 2. The plurality of broken teeth 3 sequentially arranged along the axial line of one broken roller 2 and the plurality of broken teeth 3 sequentially arranged along the axial line of the other broken roller 2 are sequentially and alternately arranged. The broken tooth 3 on one broken roller 2 does not contact with the outer side wall of the other broken roller 2. The broken tooth 3 on one broken roller 2 does not contact with the broken tooth 3 on the other broken roller 2. The end portion of the broken tooth 3 on one broken roller 2 can be located between the two ends of the broken tooth 3 on the other broken roller 2. The drive machine 4 is in transmission connection with the two broken rollers 2. The drive machine 4 can simultaneously drive the two broken rollers 2 to rotate. The two broken rollers 2 rotate in opposite directions and have the same speed.

[0036] The screening assembly comprises a machine box 9, a drive machine 10, a conical screen cylinder 11 and a partition plate 12. The machine box 9 is provided with a rectangular screen discharge port 90 and a screen discharge port 91. The machine box 1, the drive machine 1 and the drive machine 2 are fixed on the machine box 9. The machine box 9 is internally horizontally rotatably supported by the conical screen cylinder 11. The two ends of the conical screen cylinder 11 are open. The side wall of the conical screen cylinder 11 is uniformly provided with a plurality of circular screen holes 110. The discharge port is located above the small-diameter end of the conical screen cylinder 11 and is in communication with the discharge port. The broken gypsum can be conveyed into the conical screen cylinder 11 through the discharge port. The drive machine 2 is in transmission connection with the conical screen cylinder 11. The drive machine 2 can drive the conical screen cylinder 11 to rotate. The conical screen cylinder 11 is horizontally arranged. The broken gypsum enters from the small-diameter end of the conical screen cylinder 11. The gypsum in the conical screen cylinder 11 slides obliquely downward. The partition plate 12 is vertically fixed in the machine box 9 and divides the machine box 9 into a cavity 1 and a cavity 2. The screen hole 110 is located in the cavity 1. The gypsum passing through the screen hole 110 can fall into the cavity 1. The screen discharge port 91 is in communication with the cavity 1. The partition plate 12 is provided with a hole and the conical screen cylinder 11 is inserted into the hole. The large-diameter end of the conical screen cylinder 11 is in communication with the cavity 2. The screen discharge port 90 is in communication with the cavity 2. The gypsum not passing through the screen hole 110 in the conical screen cylinder 11 can fall into the cavity 2.

[0037] Further, the crushing assembly further comprises a feeding hopper 5 and a discharging chute 6. The feeding hopper 5 is vertically fixed above the machine box 1, and the small-diameter end of the feeding hopper 5 is in communication with the feeding opening and corresponds to the position of the feeding opening, so that the gypsum to be crushed can be added to the inside of the feeding hopper 5. The discharging chute 6 is arranged to be inclined relative to the horizontal direction, and the upper end of the discharging chute 6 is fixed to the machine box 1. The upper end of the discharging chute 6 is in communication with the discharging opening, and the sidewall of the machine box 2 is provided with a clearance hole. The lower end of the discharging chute 6 extends into the conical sieve cylinder 11 after passing through the clearance hole. The crushed gypsum can slide through the discharging chute 6 and fall into the conical sieve cylinder 11.

[0038] Further, the crushing assembly further comprises a gear 1 7 and a gear 2 8. The gear 1 7 and the gear 2 8 are arranged outside the machine box 1. The gear 1 7 and the gear 2 8 are coaxially fixed with the two crushing rollers 2 respectively. The gear 1 7 and the gear 2 8 are engaged. The output shaft of the driving machine 4 is coaxially fixed with the crushing roller 2 provided with the gear 1 7. When the driving machine 4 drives one crushing roller 2 to rotate, the other crushing roller 2 will also rotate synchronously and reversely.

[0039] Further, the crushing assembly further comprises a gear 1 7 and a gear 2 8. The gear 1 7 and the gear 2 8 are arranged outside the machine box 1. The gear 1 7 and the gear 2 8 are coaxially fixed with the two crushing rollers 2 respectively. The gear 1 7 and the gear 2 8 are engaged. The output shaft of the driving machine 4 is coaxially fixed with the crushing roller 2 provided with the gear 1 7. When the driving machine 4 drives one crushing roller 2 to rotate, the other crushing roller 2 will also rotate synchronously and reversely.

[0040] Further, the screening assembly further comprises a support shaft 13 and a support frame 14. The support shaft 13 is rotatably supported in the machine box 2. The support shaft 13 is coaxially arranged inside the conical sieve cylinder 11. The support frame 14 is fixed to the inside of the conical sieve cylinder 11. The support frame 14 is fixed to the support shaft 13. The output shaft of the driving machine 2 10 is coaxially fixed with the support shaft 13. The support frame 14 is in the shape of a cross and centrally fixed with the support shaft 13. The support frame 14 is sequentially arranged with a plurality of support shafts 13 along the length direction of the support shaft 13. The support frame 14 and the support shaft 13 will not block the feeding and discharging of the conical sieve cylinder 11.

[0041] Further, the screening assembly further comprises a drawer 1 5, a drawer 2 16, a transparent plate 1 17, and a transparent plate 2 18.

[0042] The drawer 1 5 can be horizontally and tightly inserted into the inside of the sieve discharge opening 90. The large-diameter end of the conical sieve cylinder 11 is located above the drawer 1 5. The large-diameter end of the conical sieve cylinder 11 is limited to the inside of the top opening end of the drawer 1 5. The gypsum that does not pass through the sieve hole 1 10 in the conical sieve cylinder 11 will pass through the large-diameter end of the conical sieve cylinder 11 and fall into the drawer 1 5. By pulling the drawer 1 5, the drawer 1 5 can be taken out, and the gypsum in the drawer 1 5 can be manually added to the feeding hopper 5.

[0043] The drawer two 16 is horizontally and tightly inserted into the inside of the undersize discharge port 91, the conical sieve cylinder 11 is located above the drawer two 16, a plurality of sieve holes 110 are all limited to the inside of the top opening end of the drawer two 16, the gypsum passing through the sieve holes 110 will fall into the drawer two 16, the gypsum which is crushed and screened can be taken out by pulling the drawer two 16;

[0044] The side wall of the cabinet two 9 is provided with a through hole one, the through hole one is blocked by a transparent plate one 17, the transparent plate one 17 is located inside the cavity one, and the transparent plate one 17 is located above the undersize discharge port 91.

[0045] The side wall of the cabinet two 9 provided with the through hole one is provided with a through hole two, the through hole two is blocked by a transparent plate two 18, the transparent plate two 18 is located inside the cavity two, and the transparent plate two 18 is located above the oversize discharge port 90.

[0046] Through the design of the transparent plate one 17 and the transparent plate two 18, the operator can visually observe the running condition of the conical sieve cylinder 11 and judge whether the gypsum in the drawer one 15 and the drawer two 16 is full.

[0047] Further, the dust suction assembly includes an air extractor 19 and a filter element 20, the top wall of the cabinet two 9 is provided with an air permeation hole 92, the air permeation hole 92 is communicated with the cavity one, the air extractor 19 is fixed on the top of the cabinet two 9, the air inlet end of the air extractor 19 is communicated with the air permeation hole 92, the filter element 20 is fixed inside the cabinet two 9, and the air outlet end of the filter element 20 is communicated with the air permeation hole 92; when the air extractor 19 operates, the air extractor 19 extracts the air inside the cabinet two 9 and the cabinet one 1, most of the dust inside the cabinet one 1 and the cabinet two 9 will be intercepted on the filter element 20 except part of the dust which is naturally settled, the filter element 20 can be pat or cleaned and replaced after the crushing device operates for a period of time; since the inside of the cabinet one 1 and the cabinet two 9 is in a negative pressure state, the dust generated when the crushing roller 2 in the cabinet one 1 crushes the gypsum will be sucked into the cabinet two 9, so that the dust will not randomly fall during the crushing process of the gypsum.

[0048] When the crushing device operates, the operator adds the gypsum to be crushed into the feeding hopper 5, the two crushing rollers 2 rotate and crush the gypsum from the feeding hopper 5, the crushed gypsum enters the conical sieve cylinder 11 which is rotating, the gypsum in the conical sieve cylinder 11 will gradually move downwards, the gypsum passing through the sieve holes 110 will fall into the drawer two 16, the gypsum which does not pass through the sieve holes 110 will fall into the drawer one 15, the operator can pull out the drawer one 15 and manually add the gypsum in the drawer one 15 into the feeding hopper 5 again and crush it again.

[0049] The various embodiments described in this specification are presented for the purpose of illustration and description. Each of the embodiments highlights a different aspect of the disclosure, and the embodiments are presented separately for ease of understanding. The same or similar elements are common throughout the embodiments and are not repeated in the description.

[0050] The above description of disclosed embodiments enables one of ordinary skill in the art to make and use the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gypsum breaking device, characterized in that, It includes: The crushing assembly further includes a feed hopper (5) and a discharge chute (6), the feed hopper (5) is vertically fixed above the machine box one (1), the small caliber end of the feed hopper (5) corresponds to the position of the inlet and communicates; the discharge chute (6) is arranged relative to the horizontal plane with the groove length direction inclined, the upper end of the discharge chute (6) is fixed with the machine box one (1), the upper end of the discharge chute (6) communicates with the discharge port, the sidewall of the machine box two (9) is provided with a let hole, the lower end of the discharge chute (6) extends into the conical screen cylinder (11) after passing through the let hole. The crushing assembly further includes a gear one (7) and a gear two (8), the gear one (7) and the gear two (8) are arranged outside the machine box one (1), the gear one (7) and the gear two (8) are coaxially fixed with two crushing rollers (2) respectively, the gear one (7) and the gear two (8) are engaged, the output shaft of the drive machine one (4) is coaxially fixed with one crushing roller (2).

2. A gypsum breaking device according to claim 1, characterised in that The crushing assembly further includes a feed hopper (5) and a discharge chute (6), the feed hopper (5) is vertically fixed above the machine box one (1), the small caliber end of the feed hopper (5) corresponds to the position of the inlet and communicates; the discharge chute (6) is arranged relative to the horizontal plane with the groove length direction inclined, the upper end of the discharge chute (6) is fixed with the machine box one (1), the upper end of the discharge chute (6) communicates with the discharge port, the sidewall of the machine box two (9) is provided with a let hole, the lower end of the discharge chute (6) extends into the conical screen cylinder (11) after passing through the let hole.

3. A gypsum breaking device according to claim 1, characterised in that The crushing assembly further includes a gear one (7) and a gear two (8), the gear one (7) and the gear two (8) are arranged outside the machine box one (1), the gear one (7) and the gear two (8) are coaxially fixed with two crushing rollers (2) respectively, the gear one (7) and the gear two (8) are engaged, the output shaft of the drive machine one (4) is coaxially fixed with one crushing roller (2).

4. A gypsum breaking device according to claim 3, characterised in that The gear one (7) and the gear two (8) are both provided with two, one of the crushing rollers (2) is arranged between the two gear one (7), and the other crushing roller (2) is arranged between the two gear two (8).

5. A gypsum breaking device according to claim 1, characterized in that The screening assembly further comprises a support shaft (13) and a support frame (14), the support shaft (13) is rotatably supported in the cabinet two (9), the support shaft (13) is coaxially arranged inside the conical screen cylinder (11), the support frame (14) is fixed inside the conical screen cylinder (11), the support frame (14) is fixed with the support shaft (13), and the output rotating shaft of the drive machine two (10) is coaxially fixed with the support shaft (13).

6. A gypsum breaking device according to claim 1, characterized in that The screening assembly further comprises a drawer one (15), a drawer two (16), a transparent plate one (17) and a transparent plate two (18), the drawer one (15) can be horizontally and tightly inserted inside the screen discharge port (90), the large-diameter end of the conical screen cylinder (11) is located above the drawer one (15), and the large-diameter end of the conical screen cylinder (11) is limited inside the top open end of the drawer one (15); the drawer two (16) can be horizontally and tightly inserted inside the screen discharge port (91), the conical screen cylinder (11) is located above the drawer two (16), and a plurality of screen holes (110) are limited inside the top open end of the drawer two (16); a through hole one is formed in the side wall of the cabinet two (9), the transparent plate one (17) is sealed at the through hole one, and the transparent plate one (17) is located inside the cavity one; a through hole two is formed in the side wall of the cabinet two (9), the transparent plate two (18) is sealed at the through hole two, and the transparent plate two (18) is located inside the cavity two.

7. A gypsum breaking device according to claim 1, characterised in that Further comprising a dust suction assembly, the dust suction assembly comprises an air extractor (19) and a filter core (20), the top wall of the cabinet two (9) is provided with a ventilation hole (92), the ventilation hole (92) is communicated with the cavity one, the air extractor (19) is fixed on the top of the cabinet two (9), and the air inlet end of the air extractor (19) is communicated with the ventilation hole (92); the filter core (20) is fixed inside the cabinet two (9), and the air outlet end of the filter core (20) is communicated with the ventilation hole (92).

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