Dry-mixed mortar crushing device

Abstract

The invention belongs to the technical field of crushing, and particularly relates to a dry-mixed mortar crushing device which comprises a base, a shell is arranged at the top end of the base, a first motor is arranged at the top end of the shell, the output end of the first motor penetrates into the shell, and a rotating shaft is arranged at the bottom end of the output end of the first motor. According to the dry-mixed mortar crushing device, when the dry-mixed mortar crushing device is used, the rotating disc rotates, crushed material airflow enters the filtering cloth bag below the rotating disc, and uncrushed materials move towards the boundary of the rotating disc under the action of centrifugal force, so that repeated crushing operation is carried out; the crushed materials enter the discharging pipe through air flow and are finally collected; the separation of crushed materials and uncrushed materials is realized, the collected materials are ensured to be the crushed materials, and the material crushing effect is ensured; and in addition, filtering separation through a filter screen is not needed, and normal discharging of the crushed materials is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing, in particular to a dry-mixed mortar crushing device. Background Art

[0002] Dry-mixed mortar, also known as mortar dry powder or dry mix powder, refers to a granular or powdered material that is physically mixed in a certain proportion of dried and sieved aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers). It is transported to the construction site in bags or bulk and can be used directly after adding water and mixing. In the preparation of dry-mixed mortar, a variety of raw materials are required, such as limestone, dolomite, etc. These materials need to be crushed by a crushing device; When the existing crushing device is in use, the crushing hammer rotates at a high speed, and the material between the crushing hammer and the inner wall of the crushing chamber is fully crushed, and the crushed material is discharged through the discharge port. In this process, the incompletely crushed material may be discharged simultaneously with the completely crushed material, which leads to poor material crushing effect. If a filter is added, it is easy to cause the filter to be blocked, affecting the discharge of the normal crushed material. To this end, the present invention provides a dry-mixed mortar crushing device. Summary of the invention

[0003] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: a dry-mixed mortar crushing device according to the present invention comprises a base, a shell is arranged at the top of the base, a first motor is arranged at the top of the shell, an output end of the first motor passes through the interior of the shell, a rotating shaft is arranged at the bottom of the output end of the first motor, a plurality of crushing blocks are arranged on the axial surface of the rotating shaft in an annular shape, and a feeding piece is arranged at the top of the shell; A discharge barrel is provided at the bottom end of the base, and a second motor is provided at the bottom end of the discharge barrel, the output end of the second motor passes through the interior of the discharge barrel, and a plurality of fan blades are provided at the end of the output end of the second motor; a filter bag is provided on the side of the discharge barrel; a rotating disk is slidably connected to the interior of the shell, the rotating disk is located at the bottom end of the rotating shaft and a pair of connecting parts are provided between the rotating shaft, a discharge pipe is provided at the bottom end of the shell, the top end of the discharge pipe passes through the top of the rotating disk, and the bottom end is connected with the discharge barrel.

[0005] Preferably, a plurality of protrusions are arranged at the bottom end of the rotating disk, and a plurality of supporting rods are arranged inside the housing and below the rotating disk, and the top ends of the supporting rods intermittently contact the protrusions when the rotating disk rotates; The connecting member includes a connecting frame and a base; the base is installed on the top of the rotating disk, and a plug-in slot is provided on the top of the base. The top of the connecting frame is fixedly connected to the rotating shaft, and the bottom of the connecting frame is plugged into the inside of the plug-in slot.

[0006] Preferably, a fixing frame is provided at the bottom end of the base, a third motor is installed on the side of the fixing frame, a circular frame is provided at the end of the output end of the third motor, a plurality of pressure plates are provided on the side of the circular frame, and the pressure plates press against the side of the inflated filter bag.

[0007] Preferably, a centrifugal block is inserted through the side of the pressure plate, a receiving frame is installed on the surface of the pressure plate, a return spring is arranged between the centrifugal block and the receiving frame, a linkage plate is arranged on the side of the centrifugal block, an elastic sheet is arranged on the side of the linkage plate, a fixed plate is arranged on the side of the receiving frame, and a stop block is arranged on the end of the fixed plate facing the linkage plate.

[0008] Preferably, the output speed fluctuation of the third motor is controlled to change during use.

[0009] Preferably, a plug-in hole is opened on the side of the shell, a scraper is plugged into the inside of the plug-in hole, and the bottom end of the scraper is at the same height as the top end of the rotating disk; a hydraulic cylinder is arranged on the side of the shell, and a linkage frame is arranged between the output end of the hydraulic cylinder and the scraper.

[0010] Preferably, the scraper includes a first combined plate and a second combined plate, a plurality of compression springs are provided between the first combined plate and the second combined plate, the first combined plate is fixedly connected to the end of the linkage frame, and the second combined plate is slidably connected to the end of the linkage frame.

[0011] Preferably, a slide groove is provided at the bottom end of the second combined plate, a slider is slidably connected inside the slide groove, a blocking block is provided at the bottom end of the slider, and a side of the blocking block facing the shell is provided as an arc surface that fits with the shell; A pair of blocking films are arranged on both sides of the first combined plate and the second combined plate.

[0012] Preferably, a magnetic block is disposed inside the blocking block, which continuously generates magnetic attraction with the shell, so that the blocking block is continuously attached to the side of the shell.

[0013] Preferably, a vent hole is provided at one end of the linkage frame connected to the first combination plate, and the vent hole is connected to the area between the first combination plate and the second combination plate; an inflation pipe is provided at one end of the vent hole away from the first combination plate, and the inflation pipe is externally connected to an air pump.

[0014] The beneficial effects of the present invention are as follows: 1. The dry-mixed mortar crushing device described in the present invention is provided with a rotating disk. When in use, the rotating disk rotates, and the airflow of the crushed material enters the filter bag below, while the uncrushed material moves to the boundary of the rotating disk under the action of centrifugal force, and is repeatedly crushed; and the crushed material enters the discharge pipe through the airflow, and is finally collected; the crushed material and the uncrushed material are separated, ensuring that the collected material is the crushed material, ensuring the material crushing effect; in addition, there is no need to filter and separate through a filter net, ensuring the normal discharge of the crushed material.

[0015] 2. The dry-mixed mortar crushing device described in the present invention is provided with a protrusion. When in use, as the rotating disk rotates, the protrusion at the bottom end of the rotating disk rotates synchronously, and is squeezed and lifted when contacting the top end of the support rod, driving the rotating disk to move upward, and then driving the rotating disk to move up and down as the rotating disk rotates. In this process, the bottom end of the connecting frame moves up and down in the plug-in slot at the top end of the base, thereby preventing the connecting part from interfering with the up and down movement of the rotating disk. When the rotating disk moves up and down, the uncrushed material on the rotating disk is vibrated and moved upward, and then fully contacts with the crushing block, thereby improving the crushing efficiency. In addition, the crushed material is intermittently separated from the rotating disk by the vibration of the rotating disk, thereby reducing the influence of the centrifugal force of the rotating disk on the crushed material, which is conducive to entering the discharge pipe through the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the base of the present invention; Figure 3 It is a schematic diagram of the fan blade position of the present invention; Figure 4 It is a schematic diagram of the connection structure of the pressure plate of the present invention; Figure 5 It is a schematic diagram of the structure of the pressure plate of the present invention; Figure 6 It is a schematic diagram of the structure of the receiving frame of the present invention; Figure 7 It is a schematic diagram of the position relationship between the elastic sheet and the stopper of the present invention; Figure 8 is a schematic cross-sectional view of a housing of the present invention; Fig. 9 is a three-dimensional schematic diagram of a housing of the present invention; Fig.10 It is a schematic diagram of the rotating disk connection structure of the present invention; Fig.11 is an exploded schematic diagram of the connector of the present invention; Fig.12 It is a schematic diagram of the scraper connection structure of the present invention; Fig.13 It is a schematic diagram of the scraper composition of the present invention; Fig.14 It is a schematic diagram of the location of the blocking block of the present invention; Fig.15 It is a schematic diagram of the connecting structure of the linkage frame of the present invention.

[0018] In the figure: 1, base; 11, shell; 110, plug hole; 12, first motor; 13, rotating shaft; 14, crushing block; 15, feeding member; 2, rotating disk; 20, discharge pipe; 21, connecting member; 211, connecting frame; 212, base; 213, plug slot; 22, protrusion; 23, support rod; 3, discharge barrel; 31, second motor; 32, fan blade; 33, filter bag; 4, fixing frame; 41, third motor; 4 2. Round frame; 43. Pressure plate; 44. Centrifugal block; 441. Linking plate; 442. Return spring; 443. Elastic sheet; 5. Receiver; 51. Fixed plate; 52. Stopper; 6. Hydraulic cylinder; 61. Linking frame; 611. Air vent; 612. Inflatable tube; 62. Scraper; 621. First combination plate; 622. Second combination plate; 6221. Slide; 623. Compression spring; 63. Sliding block; 64. Blocking block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] like Figures 1 to 8 As shown, a dry-mixed mortar crushing device according to an embodiment of the present invention comprises a base 1, a shell 11 is arranged at the top of the base 1, a first motor 12 is arranged at the top of the shell 11, an output end of the first motor 12 passes through the interior of the shell 11, a rotating shaft 13 is arranged at the bottom of the output end of the first motor 12, a plurality of crushing blocks 14 are arranged on the axial surface of the rotating shaft 13 in an annular shape, and a feeding member 15 is arranged at the top of the shell 11; A discharge barrel 3 is provided at the bottom end of the base 1, and a second motor 31 is provided at the bottom end of the discharge barrel 3. The output end of the second motor 31 passes through the inside of the discharge barrel 3, and a plurality of fan blades 32 are provided at the end of the output end of the second motor 31; a filter bag 33 is provided on the side of the discharge barrel 3; a rotating disk 2 is slidably connected to the inside of the housing 11, and the rotating disk 2 is located at the bottom end of the rotating shaft 13 and a pair of connecting members 21 are provided between the rotating shaft 13; a discharge pipe 20 is provided at the bottom end of the housing 11, and the top end of the discharge pipe 20 passes through the top of the rotating disk 2, and the bottom end is connected to the discharge barrel 3; At present, when the crushing device is used, the crushed material is discharged through the discharge port. In this process, the incompletely crushed material may be discharged synchronously with the completely crushed material, which leads to a poor material crushing effect. If a filter is added, it is easy to cause the filter to be blocked, affecting the discharge of the normal crushed material. In order to solve the above problems, the embodiment of the present invention is provided with a rotating disk 2, a filter bag 33 and other structures; the specific use process is as follows; when in use, the staff puts the material to be crushed into the shell 11 through the feeding piece 15, starts the first motor 12, the first motor 12 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the crushing block 14 to rotate, and the material entering the shell 11 is crushed by the rotating crushing block 14; at the same time, the second motor 31 is started, and the second motor 31 drives The fan blades 32 inside the discharge barrel 3 rotate, and then the space above the rotating disk 2 is evacuated through the discharge pipe 20, and the crushed material is drawn into the discharge barrel 3, and then enters the filter bag 33, so that the crushed material is collected; and when the shaft 13 rotates, the rotating disk 2 is driven to rotate synchronously through the connecting piece 21. When the rotating disk 2 rotates, the uncrushed material falling onto the rotating disk 2 moves toward the boundary of the rotating disk 2 under the action of centrifugal force, and is repeatedly crushed; and the crushed material enters the discharge pipe 20 through the airflow, and is finally collected; the crushed material and the uncrushed material are separated, ensuring that the collected material is the crushed material, and the material crushing effect is ensured; in addition, there is no need to filter and separate through a filter net, so as to ensure the normal discharge of the crushed material.

[0021] like Figures 1 to 11 As shown, a plurality of protrusions 22 are provided at the bottom end of the rotating disk 2, and a plurality of supporting rods 23 are provided inside the housing 11 and below the rotating disk 2. When the rotating disk 2 rotates, the top ends of the supporting rods 23 intermittently contact the protrusions 22; The connecting member 21 includes a connecting frame 211 and a base 212; the base 212 is installed at the top of the rotating disk 2, and a plug-in slot 213 is provided at the top of the base 212. The top of the connecting frame 211 is fixedly connected to the rotating shaft 13, and the bottom of the connecting frame 211 is plugged into the inside of the plug-in slot 213; when in use, as the rotating disk 2 rotates, the protrusion 22 at the bottom of the rotating disk 2 rotates synchronously, and is squeezed and lifted up when it contacts the top of the support rod 23, driving the rotating disk 2 to move upward, and then driving the rotating disk 2 to move up and down as the rotating disk 2 rotates. During this process, the bottom end of the connecting frame 211 moves up and down in the insertion slot 213 at the top of the base 212, thereby preventing the connecting member 21 from interfering with the up and down movement of the rotating disk 2. When the rotating disk 2 moves up and down, the uncrushed material on the rotating disk 2 is vibrated and moved upward, thereby fully contacting the crushing block 14, thereby improving the crushing efficiency. In addition, the crushed material is intermittently separated from the rotating disk 2 by the vibration of the rotating disk 2, thereby reducing the influence of the centrifugal force of the rotating disk 2 on the crushed material, which is conducive to entering the discharge pipe 20 through the airflow.

[0022] A fixing frame 4 is provided at the bottom end of the base 1, and a third motor 41 is installed on the side of the fixing frame 4. A circular frame 42 is provided at the end of the output end of the third motor 41, and a plurality of pressure plates 43 are provided on the side of the circular frame 42. The pressure plates 43 press against the side of the inflated filter bag 33. When in use, the third motor 41 is started, and the third motor 41 drives the pressure plates 43 to rotate through the circular frame 42. The pressure plates 43 contact the surface of the filter bag 33 when rotating, thereby causing the side of the filter bag 33 filled with materials and air to be continuously pushed, preventing the crushed materials from adhering to the position of the filter bag 33 near the bag opening, thereby hindering the circulation of air. The pressure plates 43 press against the surface of the filter bag 33 to drive the materials near the bag opening of the filter bag 33 to concentrate toward the bottom of the filter bag 33, which is beneficial to the collection process of the filter bag 33.

[0023] A centrifugal block 44 is inserted through the side of the pressure plate 43, a receiving frame 5 is installed on the surface of the pressure plate 43, a return spring 442 is arranged between the centrifugal block 44 and the receiving frame 5, a linkage plate 441 is arranged on the side of the centrifugal block 44, an elastic sheet 443 is arranged on the side of the linkage plate 441, a fixing plate 51 is arranged on the side of the receiving frame 5, and a stopper 52 is arranged on one end of the fixing plate 51 facing the linkage plate 441; when the pressure plate 43 rotates around the filter bag 33, the centrifugal force Under the action, the centrifugal block 44 stretches the reset spring 442 and moves relative to the pressure plate 43, driving the elastic sheet 443 to move synchronously. When the elastic sheet 443 moves, it will be blocked by the block 52. After the elastic sheet 443 bends, it will pass over the block 52, generating elastic oscillation, causing the pressure plate 43 to oscillate synchronously. When the oscillating pressure plate 43 contacts the filter bag 33, it causes the filter bag 33 to vibrate synchronously, thereby causing the material attached to the inner wall of the filter bag 33 to be collected toward the bottom of the filter bag 33.

[0024] When in use, the output speed fluctuation of the third motor 41 is controlled to change; the centrifugal force on the centrifugal block 44 is intermittently changed, and then the elastic sheet 443 is intermittently reset, so that the elastic sheet 443 frequently passes over the block 52, and the elastic sheet 443 oscillates intermittently, so that the pressure plate 43 produces an oscillation effect for a continuous distance, which is beneficial to the centralized collection process of the material by the filter bag 33.

[0025] like Figures 8 to 15As shown, a plug hole 110 is provided on the side of the shell 11, and a scraper 62 is plugged into the plug hole 110, and the bottom end of the scraper 62 is at the same height as the top of the rotating disk 2; a hydraulic cylinder 6 is provided on the side of the shell 11, and a linkage frame 61 is provided between the output end of the hydraulic cylinder 6 and the scraper 62; when in use, the hydraulic cylinder 6 is started, and the hydraulic cylinder 6 drives the scraper 62 to intermittently pass through the plug hole 110 and insert into the shell 11 through the linkage frame 61. When the scraper 62 enters the shell 11, the bottom end of the scraper 62 contacts the top of the rotating disk 2. As the rotating disk 2 rotates, the scraper 62 scrapes off the material attached to the top of the rotating disk 2 to prevent the crushed material from adhering to and accumulating on the top of the rotating disk 2 and hindering the collection of the material.

[0026] The scraper 62 includes a first combination plate 621 and a second combination plate 622, and a plurality of compression springs 623 are arranged between the first combination plate 621 and the second combination plate 622. The first combination plate 621 is fixedly connected to the end of the linkage frame 61, and the second combination plate 622 is slidably connected to the end of the linkage frame 61. When the scraper 62 is inserted into the shell 11, when the rotating disk 2 moves up and down, the second combination plate 622 is synchronously driven to move, and the first combination plate 621 always maintains connection with the second combination plate 622 through the compression spring 623, thereby preventing the scraper 62 from interfering with the up and down movement of the rotating disk 2.

[0027] A slide groove 6221 is provided at the bottom end of the second combination plate 622, and a slider 63 is slidably connected inside the slide groove 6221. A blocking block 64 is provided at the bottom end of the slider 63, and the side of the blocking block 64 facing the shell 11 is set as an arc surface that fits the shell 11; a pair of blocking films 624 are provided on both sides of the first combination plate 621 and the second combination plate 622; when the second combination plate 622 is inserted into the shell 11, the slider 63 in the slide groove 6221 at the bottom end of the second combination plate 622 drives the blocking block 64 to adhere to the surface below the plug hole 110 on the shell 11, and when the second combination plate 622 is inserted into the shell 11, the slider 63 in the slide groove 6221 at the bottom end of the second combination plate 622 drives the blocking block 64 to adhere to the surface below the plug hole 110 on the shell 11. When the combination plate 622 moves upward, the blocking block 64 moves upward synchronously to block the leaked part of the plug hole 110. At the same time, a pair of blocking films 624 arranged on both sides of the first combination plate 621 and the second combination plate 622 contact the inner wall of the plug hole 110, thereby blocking the area between the first combination plate 621 and the second combination plate 622. It should be pointed out that the linkage frame 61 blocks the position at the end of the area between the first combination plate 621 and the second combination plate 622 outside the shell 11 to prevent air leakage in the plug hole 110 and avoid material leakage from the plug hole 110.

[0028] A magnetic block is arranged inside the blocking block 64 , which continuously generates magnetic attraction with the shell 11 , so that the blocking block 64 is continuously attached to the side of the shell 11 ; the blocking block 64 is continuously attached to the side of the shell 11 , ensuring the sealing effect of the plug hole 110 .

[0029] A vent hole 611 is provided at one end of the linkage frame 61 connected to the first assembly plate 621, and the vent hole 611 is connected to the area between the first assembly plate 621 and the second assembly plate 622; an inflation tube 612 is provided at one end of the vent hole 611 away from the first assembly plate 621, and an air pump is externally connected to the inflation tube 612; when in use, the air pump externally connected to the inflation tube 612 is started, and the air pump inflates the area between the first assembly plate 621 and the second assembly plate 622 through the inflation tube 612 and the vent hole 611, so that a pair of blocking films 624 arranged on both sides of the first assembly plate 621 and the second assembly plate 622 remain filled, and when the distance between the first assembly plate 621 and the second assembly plate 622 changes, the blocking diaphragm 624 will continue to maintain contact with the inner wall of the plug hole 110 under the action of the airflow, thereby ensuring the sealing effect of the plug hole 110.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dry-mix mortar crushing device, characterized in that: The invention comprises a base (1), a shell (11) being arranged at the top of the base (1), a first motor (12) being arranged at the top of the shell (11), an output end of the first motor (12) passing through the interior of the shell (11), a rotating shaft (13) being arranged at the bottom of the output end of the first motor (12), a plurality of crushing blocks (14) being arranged on the axial surface of the rotating shaft (13) in an annular shape, and a feeding member (15) being arranged at the top of the shell (11); A discharge barrel (3) is arranged at the bottom end of the base (1), a second motor (31) is arranged at the bottom end of the discharge barrel (3), an output end of the second motor (31) passes through the inside of the discharge barrel (3), and a plurality of fan blades (32) are arranged at the end of the output end of the second motor (31); a filter bag (33) is arranged on the side of the discharge barrel (3); a rotating disk (2) is slidably connected to the inside of the shell (11), the rotating disk (2) is located at the bottom end of the rotating shaft (13) and a pair of connecting members (21) are arranged between the rotating shaft (13); a discharge pipe (20) is arranged through the bottom end of the shell (11), the top end of the discharge pipe (20) passes through the top of the rotating disk (2), and the bottom end is connected to the discharge barrel (3).

2. A dry-mix mortar crushing device according to claim 1, characterized in that: A plurality of protrusions (22) are arranged at the bottom end of the rotating disk (2), and a plurality of support rods (23) are arranged inside the housing (11) and below the rotating disk (2), and when the rotating disk (2) rotates, the top ends of the support rods (23) intermittently contact the protrusions (22); The connecting member (21) comprises a connecting frame (211) and a base (212); the base (212) is mounted on the top of the rotating disk (2), and a plug-in slot (213) is provided on the top of the base (212); the top of the connecting frame (211) is fixedly connected to the rotating shaft (13), and the bottom of the connecting frame (211) is plugged into the inside of the plug-in slot (213).

3. A dry-mix mortar crushing device according to claim 1, characterized in that: A fixing frame (4) is provided at the bottom end of the base (1), a third motor (41) is mounted on the side of the fixing frame (4), a round frame (42) is provided at the end of the output end of the third motor (41), a plurality of pressing plates (43) are provided on the side of the round frame (42), and the pressing plates (43) press against the side of the inflated filter bag (33).

4. A dry-mix mortar crushing device according to claim 3, characterized in that: A centrifugal block (44) is inserted through the side of the pressure plate (43), a receiving frame (5) is installed on the surface of the pressure plate (43), a return spring (442) is arranged between the centrifugal block (44) and the receiving frame (5), a linkage plate (441) is arranged on the side of the centrifugal block (44), an elastic sheet (443) is arranged on the side of the linkage plate (441), a fixing plate (51) is arranged on the side of the receiving frame (5), and a stopper (52) is arranged at one end of the fixing plate (51) facing the linkage plate (441).

5. The dry-mix mortar crushing device according to claim 1, characterized in that: When in use, the output speed fluctuation of the third motor (41) is controlled to change.

6. A dry-mix mortar crushing device according to claim 1, characterized in that: A plug-in hole (110) is provided on the side of the housing (11), a scraper (62) is plugged into the plug-in hole (110), and the bottom end of the scraper (62) is at the same height as the top end of the rotating disk (2); a hydraulic cylinder (6) is provided on the side of the housing (11), and a linkage frame (61) is provided between the output end of the hydraulic cylinder (6) and the scraper (62).

7. A dry-mix mortar crushing device according to claim 6, characterized in that: The scraper (62) comprises a first combined plate (621) and a second combined plate (622); a plurality of compression springs (623) are provided between the first combined plate (621) and the second combined plate (622); the first combined plate (621) is fixedly connected to an end of the linkage frame (61); and the second combined plate (622) is slidably connected to an end of the linkage frame (61).

8. The dry-mix mortar crushing device according to claim 7, characterized in that: A slide groove (6221) is provided at the bottom end of the second combined plate (622), a slider (63) is slidably connected inside the slide groove (6221), a blocking block (64) is provided at the bottom end of the slider (63), and a side of the blocking block (64) facing the shell (11) is provided as an arc-shaped surface that fits with the shell (11); A pair of blocking films (624) are provided on both sides of the first combined plate (621) and the second combined plate (622).

9. The dry-mix mortar crushing device according to claim 8, characterized in that: A magnetic block is arranged inside the blocking block (64), which continuously generates magnetic attraction with the shell (11), so that the blocking block (64) is continuously attached to the side of the shell (11).

10. The dry-mixed mortar crushing device according to claim 9, characterized in that: An air vent (611) is provided at one end of the linkage frame (61) connected to the first combined plate (621), and the air vent (611) is in communication with the area between the first combined plate (621) and the second combined plate (622); an air filling tube (612) is provided at one end of the air vent (611) away from the first combined plate (621), and the air filling tube (612) is externally connected to an air pump.

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