Waste porcelain material mixed grinding equipment and grinding method

Abstract

The invention relates to the technical field of waste porcelain grinding processing, and specifically to a waste porcelain mixed grinding equipment and a grinding method. The liner is composed of movable slats distributed along the circumferential direction of the inner wall of a ball mill silo. A connecting tube fixedly connected to the head end of the ball mill silo is arranged in a feeding box. During grinding operation, the connecting tube rotates synchronously with the ball mill silo, and a crushing hammer rotates rapidly to crush the waste porcelain blocks. The movable slats located in the grinding area of ​​the ball mill silo are folded and attached to the inner wall of the ball mill silo. The movable slats near the top position in the non-grinding area naturally turn downward and open, driving the movable flap at the corresponding position in the connecting tube to open. The broken porcelain block fragments enter the connecting tube along the open feeding port and are fed into the ball mill silo, so as to realize adaptive adjustment of the feeding amount and solve the problem that the random feeding of waste porcelain materials inevitably leads to unreasonable gradation with the loading amount of the grinding body, thereby affecting the stable and efficient grinding operation of the ball mill equipment.

Description

Technical Field

[0001] The invention relates to the technical field of waste porcelain grinding and processing, and in particular to a waste porcelain material mixed grinding device and a grinding method. Background Art

[0002] Generally speaking, the ceramic production process includes three basic stages: blank manufacturing, blank forming, and porcelain sintering. Blank manufacturing involves the grinding and processing of raw materials. Ceramics will inevitably produce waste porcelain during the production and use process. The accumulation of waste porcelain seriously pollutes the environment and occupies resources. The existing recycling and reuse of waste porcelain has been proven to be feasible. The regeneration plan mainly involves crushing and grinding the waste porcelain again, and then mixing the raw materials in a certain proportion to prepare porcelain clay blanks.

[0003] However, for the mixed grinding of waste porcelain materials, due to the random size of waste porcelain blocks and random hardness of materials, the grinding body in the ball mill cannot be adjusted in real time according to the size and hardness of the waste porcelain blocks input. If the volume of waste porcelain materials input within a period of time is too large or the hardness is too high, the corresponding grinding capacity will be insufficient, and then the discharge of materials will be slow, and even blockage will occur. If the volume of waste porcelain materials input within a period of time is too small or the hardness is too low, the grinding capacity will be excessive, the wear of the grinding body and the lining plate in the bin will increase, and the vibration noise generated will increase. As a result, the loading capacity of the grinding body and the grading of the material in the bin are unreasonable, which affects the stable and efficient grinding operation of the ball mill equipment. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a waste porcelain mixed grinding device and grinding method to solve the problem that the loading capacity of the grinding body and the unreasonable gradation of the material in the bin affect the stable and efficient grinding operation of the ball mill.

[0005] Based on the above purpose, the present invention provides a waste porcelain mixed grinding device, including a ball mill silo, a lining plate is provided on the inner wall of the ball mill silo, a feeding part is provided at one end of the ball mill silo, a discharging part is provided at the other end, and a partition plate is provided inside the ball mill silo:

[0006] The liner is composed of movable slats distributed along the circumference of the inner wall of the ball mill silo. A connecting shaft is fixed to one side end of the movable slat. The connecting shaft is transversely arranged in the ball mill silo and is rotatably connected to the inner wall of the ball mill silo.

[0007] The feeding part includes a feeding box, which has a feeding port at the bottom of the side end thereof for feeding waste porcelain blocks into the feeding box. A connecting tube fixedly connected to the head end of the ball mill silo is provided in the feeding box, a plurality of feeding ports are provided on the side wall of the connecting tube, a plurality of crushing hammers are circumferentially arranged on the outer wall of the connecting tube, a movable flap is provided at each feeding port on the inner wall of the connecting tube, one end of the connecting shaft is passed through the connecting tube and fixed to the movable flap, the connecting tube rotates synchronously with the ball mill silo, and the waste porcelain blocks are crushed by the crushing hammer, and the porcelain block fragments enter the connecting tube along the open feeding port and are fed into the ball mill silo.

[0008] Preferably, a feed screen is provided at the bottom end of the feed box for screening the remaining crushed porcelain block slag.

[0009] Preferably, a feeding chute is fixedly connected to the side end of the feeding box, one end of the feeding chute passes through the outside of the feeding box and is provided with a hot air inlet, and the other end passes horizontally into the connecting tube and is connected to the ball mill silo. The feeding chute passes into the interior of the connecting tube and is designed to be open at the top.

[0010] Preferably, the top of the feeding chute passing through the outer part of the feeding box is connected to a feeding chute, and the bottom end of the feeding chute is rotatably connected to a bottom flap. In the initial state, hot air blows in along the feeding chute, driving the bottom flap to rotate. The bottom flap closes the bottom end of the feeding chute. When porcelain block fragments are added along the feeding chute, the bottom flap is driven to rotate and open.

[0011] Preferably, grate holes for the abrasive to pass through are opened on the partition plate, and a movable tooth piece is provided in the partition plate. When the movable flap is rotated to open, the corresponding connecting shaft pushes the movable tooth piece so that the movable tooth piece passes into the grate hole to clean the abrasive in the grate hole.

[0012] Preferably, the movable tooth part includes a thin rod passed through the partition plate, with convex teeth arranged at intervals on the thin rod, and the part of the connecting shaft passing through the partition plate is connected to the fixed teeth. When the connecting shaft rotates, the thin rod is pushed to move by the fixed teeth, and the convex teeth are passed into each comb hole along with the thin rod.

[0013] Preferably, an elastic member is connected between one end of the thin rod and the partition plate, and when the movable slat rotates to fit the inner wall of the ball mill silo, the elastic member pushes the thin rod to move and reset, so that the convex tooth portion moves out of the grate hole.

[0014] Preferably, the unloading part includes a unloading screen cylinder, a unloading port is provided at the bottom end of the unloading screen cylinder, an air outlet is provided laterally in the unloading screen cylinder, one end of the air outlet is fixedly connected to the ball mill silo, and the other end is passed through the outside of the unloading screen cylinder and is provided with an exhaust gas outlet, and a blade is connected to the side end of the air outlet cylinder, which rotates synchronously with the ball mill silo and is used to stir the grinding material.

[0015] The present invention also provides a grinding method of waste porcelain material mixed grinding equipment, comprising the following steps:

[0016] The waste porcelain blocks are fed into the feeding box through the feeding port, the connecting tube rotates synchronously with the ball mill silo, the breaker hammer rotates synchronously, and the waste porcelain blocks are broken. At the same time, the movable slats in the grinding area of ​​the ball mill silo are folded and attached to the inner wall of the ball mill silo, and the movable slats in the non-grinding area rotate downward, and synchronously drive the movable flaps at the corresponding positions in the connecting tube to open, and the broken porcelain block fragments enter the connecting tube along the open feeding port and are fed into the ball mill silo;

[0017] If the size of the waste porcelain block is too large or the hardness is too high, the grinding area of ​​the material in the ball mill silo becomes higher, the number of movable slats rotating downward at the top of the ball mill silo decreases, the number of open material passages decreases, and the amount of feed entering the connecting tube decreases accordingly. If the size of the waste porcelain block is too small or the hardness is too low, the grinding area of ​​the material in the ball mill silo becomes lower, the number of movable slats rotating downward at the top increases, the number of open material passages increases, and the amount of feed entering the connecting tube increases accordingly.

[0018] Preferably, a movable tooth is provided in the partition plate, and a grate hole is opened on the partition plate for the abrasive to pass through. When the movable slat rotates downward, the corresponding connecting shaft pushes the movable tooth to allow the movable tooth to penetrate into the grate hole to clean the residual abrasive in the grate hole.

[0019] The beneficial effects of the present invention are as follows: the lining plate is composed of movable slats distributed along the circumferential direction of the inner wall of the ball mill silo, and a connecting cylinder fixedly connected to the head end of the ball mill silo is arranged in the feeding box. During the grinding operation, the connecting cylinder rotates synchronously with the ball mill silo, and the crushing hammer rotates rapidly to crush the waste porcelain blocks. The movable slats located in the grinding area of ​​the ball mill silo are folded and attached to the inner wall of the ball mill silo, and the movable slats near the top position in the non-grinding area naturally turn down and open, driving the movable flap at the corresponding position in the connecting cylinder to open, and the broken porcelain block fragments enter the connecting cylinder along the open feeding port, and When feeding into the ball mill silo, if the waste porcelain block is too large or too hard, the grinding area of ​​the material in the silo becomes higher, the number of movable slats in the top non-grinding area is reduced, and the number of movable slats that turn downward and open is reduced, that is, the number of open material passages is reduced. Similarly, if the waste porcelain block is too small or too hard, the amount of porcelain block fragments entering the connecting tube and feeding will increase adaptively. In this way, synchronous pre-crushing operation is achieved while solving the problem that random feeding of waste porcelain materials will inevitably lead to unreasonable grading with the loading capacity of the grinding body, thereby affecting the stable and efficient grinding operation of the ball mill equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the feeding chute in the present invention;

[0023] Figure 3 It is a structural schematic diagram of the connecting tube of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the liner plate in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the present invention when some movable slats rotate downward during grinding operation;

[0026] Figure 6 It is a schematic diagram of the structure when more movable slats rotate downward in the grinding operation of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the corresponding movable flap in the present invention when it is flipped down;

[0028] Figure 8 It is a structural schematic diagram of the partition board of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the corresponding movable tooth member in the present invention when it moves to clean the grate holes;

[0030] Fig.10 For the present invention Fig. 9 A local enlarged schematic diagram of the middle A;

[0031] The arrow in the figure indicates the rotation direction of the ball mill silo.

[0032] The markings in the figure are:

[0033] 1. Ball mill silo; 2. Lining plate; 21. Movable slats; 22. Connecting shaft; 221. Fixed tooth; 3. Feeding section; 31. Feeding box; 32. Feeding port; 33. Feeding hopper; 34. Feeding screen cylinder; 35. Feeding chute; 351. Hot air inlet; 36. Feeding chute; 37. Bottom flap; 4. Discharging section; 41. Discharging sieve cylinder; 42. Discharging port; 5. Partition plate; 51. Grate hole; 6. Connecting cylinder; 61. Feeding port; 62. Breaking hammer; 63. Movable flap; 7. Moving tooth; 71. Thin rod; 72. Convex tooth; 73. Elastic member; 8. Air outlet; 81. Exhaust port; 82. Blade. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figures 1 to 10 As shown, a waste porcelain mixed grinding device comprises a ball mill silo 1, a lining plate 2 is arranged on the inner wall of the ball mill silo 1, a feeding part 3 is arranged at one end of the ball mill silo 1, and a discharging part 4 is arranged at the other end, and a partition plate 5 is arranged inside the ball mill silo 1, wherein the lining plate 2 is composed of movable slats 21 distributed along the circumferential direction of the inner wall of the ball mill silo 1, and a connecting shaft 22 is fixed to one side end of the movable slat 21, and the connecting shaft 22 is transversely arranged in the ball mill silo 1 and rotatably connected to the inner wall of the ball mill silo 1, and the feeding part 3 comprises a feeding box 31, and a feeding port 32 is opened at the bottom of the side end of the feeding box 31 for feeding the feeding material Waste porcelain blocks are fed into the box 31, and a connecting tube 6 fixedly connected to the head end of the ball mill silo 1 is provided in the feeding box 31, a plurality of feeding ports 61 are opened on the side wall of the connecting tube 6, a plurality of crushing hammers 62 are arranged circumferentially on the outer wall of the connecting tube 6, and a movable flap 63 is provided on the inner wall of the connecting tube 6 at each feeding port 61, one end of the connecting shaft 22 is penetrated into the connecting tube 6 and fixed to the movable flap 63, the connecting tube 6 rotates synchronously with the ball mill silo 1, and the waste porcelain blocks are crushed by the crushing hammer 62, and the porcelain block fragments enter the connecting tube 6 along the open feeding port 61 and are fed into the ball mill silo 1.

[0037] The present invention is based on the existing ball mill equipment, including a ball mill silo 1, which is generally a hollow cylinder made of steel plates rolled and welded. A lining plate 2 is arranged on the inner wall of the ball mill silo 1, a feeding part 3 is arranged at one end of the ball mill silo 1, and a discharging part 4 is arranged at the other end. A partition plate 5 is arranged inside the ball mill silo 1. The ball mill silo 1 is driven by a motor to rotate through a transmission mechanism, using existing different methods such as edge transmission and center transmission. A grinding body such as steel balls, steel segments, steel rods, polyhedrons, etc. is reasonably selected, and the filling rate and gradation of the grinding body are adjusted. The material is fed into the ball mill silo 1 by the feeding part 3, and the grinding body in the silo crushes and impacts the material when the ball mill silo 1 rotates to complete the grinding. During the grinding process, the grinding body is subjected to the friction between the grinding body and the lining plate 2, the friction between the grinding bodies, and the centrifugal force of the silo rotation in addition to its own gravity, so that the grinding body moves in a certain regular trajectory, such as Figure 5 , Figure 6 As shown, the grinding body is lifted to a certain height. When the gravity exceeds the centrifugal force, it falls along a parabola to impact and crush the material. Since the feeding part 3 continuously forces the material to be fed, the material moves along the rotation of the silo, forming a forward squeezing force for the material. In addition, the exhaust air in the silo is exhausted in the discharge direction. Even if the ball mill silo 1 is placed horizontally, the material can continuously move to the discharge end and be discharged from the discharge part 4. The function of the liner 2 is to protect the cylinder from the direct impact and grinding of the grinding body and the material, and at the same time, it can also adjust the movement state of the grinding body. The partition plate 5 divides the ball mill silo 1 into multiple grinding bins. The grinding bodies generally loaded in the multiple grinding bins are different in grade, so as to realize multi-level grinding from coarse to fine.

[0038] Among them, unlike the traditional fixed liner design, such as Figure 4 , Figure 5 , Figure 6 As shown, the liner 2 in the present invention is composed of movable slats 21 distributed circumferentially along the inner wall of the ball mill silo 1, and a connecting shaft 22 is fixed to the side end of one side of the movable slat 21. The connecting shaft 22 is transversely penetrated in the ball mill silo 1 and is rotatably connected to the inner wall of the ball mill silo 1. The feeding part 3 includes a feeding box 31. A feeding port 32 is provided at the bottom of the side end of the feeding box 31 for feeding waste porcelain blocks into the feeding box 31. A connecting tube 6 fixedly connected to the head end of the ball mill silo 1 is provided in the feeding box 31. Preferably, the connecting tube 6 is a hollow cylindrical structure integrally manufactured and connected to the ball mill silo 1, such as Figure 1 , Figure 3 , Figure 7As shown, a plurality of material passage openings 61 are provided on the circumferential side wall of the connecting cylinder 6, and a plurality of crushing hammers 62 are arranged circumferentially on the circumferential outer wall of the connecting cylinder 6. A certain space for crushing the waste porcelain blocks is reserved between the crushing hammers 62 and the feeding box 31. A movable flap 63 is provided on the inner wall of the connecting cylinder 6 at each material passage opening 61. One end of the connecting shaft 22 is inserted into the connecting cylinder 6 and fixed to the movable flap 63. Therefore, during the grinding operation, the connecting cylinder 6 rotates synchronously with the ball mill silo 1, and the crushing hammers 62 rotate rapidly to crush the waste porcelain blocks, thereby realizing the preliminary crushing operation before grinding. Figure 5 , Figure 6 As shown, during rotational grinding, the grinding body falls in a regular and fixed parabolic trajectory, and the movable slats 21 located in the grinding area are folded and attached to the inner wall of the ball mill silo 1, playing a normal protective role and driving the material grinding. The movable slats 21 in the non-grinding area, especially those near the top, naturally turn downward and open, which synchronously drives the movable flap 63 at the corresponding position in the connecting tube 6 to open. The broken porcelain fragments enter the connecting tube 6 along the open feed port 61 with the rotation inertia and the driving of the breaker 62, and are fed into the ball mill silo 1. As the size and hardness of the waste porcelain blocks input change, the grinding capacity in the ball mill silo 1 becomes unmatched, the discharge speed changes accordingly, and the accumulation of materials in the silo during this time period is also different accordingly, so the grinding area of ​​the material changes, such as Figure 5 , Figure 6 As shown, for example, if the size of the waste porcelain block is too large or the hardness is too high, the grinding area of ​​the material in the silo becomes higher, then the movable slats 21 in the non-grinding area near the top position are reduced, and the movable slats 21 that are turned downward and opened are reduced, that is, the open material passage 61 is reduced, and the amount of porcelain block fragments entering the connecting tube 6 and being fed is adaptively adjusted and reduced. Similarly, if the size of the waste porcelain block is too small or the hardness is too low, the amount of porcelain block fragments entering the connecting tube 6 and being fed will be adaptively increased. Thus, while achieving synchronous pre-crushing operations, the problem of the inevitable unreasonable grading of the random feeding of waste porcelain materials and the loading capacity of the grinding body, thereby affecting the stable and efficient grinding operation of the ball milling equipment, is solved. Compared with real-time adjustment of the loading capacity of the grinding body in the closed ball mill silo 1, it is less difficult and meets better practical requirements.

[0039] Among them, Figure 1 As shown, a feed hopper 33 is externally connected to the feed port 32 for feeding waste porcelain blocks into the feed box 31 .

[0040] In an embodiment of the present invention, Figure 1 As shown, a feed screen 34 is provided at the bottom of the feeding box 31 for screening the remaining ceramic block debris crushed by the breaker 62. If the excess ceramic block debris cannot be fed through the feed port 61 in time, it will be screened and collected along the feed screen 34.

[0041] In an embodiment of the present invention, Figure 1 , Figure 2 As shown, a feeding chute 35 is fixedly connected to the side end of the feeding box 31, one end of the feeding chute 35 passes through the outside of the feeding box 31 and is provided with a hot air inlet 351, through which hot air is blown into the ball mill silo 1, and the other end thereof passes horizontally through the connecting tube 6 and is connected with the ball mill silo 1. The feeding chute 35 passes through the interior of the connecting tube 6 and is designed to be open at the top, and the porcelain fragments entering the connecting tube 6 fall onto the feeding chute 35 and slide into the ball mill silo 1 for feeding.

[0042] In an embodiment of the present invention, Figure 1 , Figure 2 As shown, the top of the feeding chute 35 passing through the outer part of the feeding box 31 is connected to the adding chute 36, and the bottom end of the adding chute 36 is rotatably connected to the bottom flap 37. In the initial state, hot air is blown in along the feeding chute 35, driving the bottom flap 37 to rotate, and the bottom flap 37 closes the bottom end of the adding chute 36. After a certain amount of porcelain block fragments are collected in the feed screen cylinder 34, the porcelain block fragments are added along the adding chute 36. The gravity of the fragments drives the bottom flap 37 to rotate and open, and is fed into the ball mill silo 1 along the feeding chute 35.

[0043] In an embodiment of the present invention, Figure 8 , Fig. 9 , Fig.10 As shown, the partition plate 5 is provided with grate holes 51 for the grinding material and air flow to pass through, so that large particles, i.e., grinding materials that do not meet the grinding requirements and grinding bodies, are retained in each grinding bin. A movable tooth part 7 is provided in the partition plate 5. When the movable flap 63 is rotated and opened, the corresponding connecting shaft 22 pushes the movable tooth part 7 so that the movable tooth part 7 is inserted into the grate hole 51 to clean the residual grinding material in the grate hole 51. Since the ball mill silo 1, the liner 2 and the partition plate 5 rotate synchronously, each time the movable slat 21 in the non-grinding area at the top rotates downward and opens, the corresponding connecting shaft 22 rotates and pushes the movable tooth part 7, that is, each time the grate hole 51 rotates to the corresponding position is triggered for cleaning, the grate hole 51 at this position is in the non-grinding area, and no grinding material will pass through. Combined with the blowing force of wind resistance, the cleaning can be completed well, and as the ball mill silo 1 rotates, the partition plate 5 continues to complete the cleaning, avoiding the grate hole 51 from being blocked due to long-term closed grinding operation.

[0044] In an embodiment of the present invention, Figure 8 , Fig. 9 , Fig.10 As shown, the movable tooth part 7 includes a thin rod 71 passed through the partition plate 5, and convex tooth portions 72 are arranged at intervals on the thin rod 71. Specifically, the convex tooth portions 72 can be spike-shaped or blade-shaped, etc., which is conducive to cleaning the grate holes 51. The part of the connecting shaft 22 that passes through the partition plate 5 is connected to the fixed tooth portion 221. When the connecting shaft 22 rotates, the thin rod 71 is pushed to move through the fixed tooth portion 221, and the convex tooth portion 72 is passed into each grate hole 51 along with the thin rod 71.

[0045] In an embodiment of the present invention, Figure 8 , Fig. 9 , Fig.10 As shown, an elastic member 73 is connected between one end of the thin rod 71 and the partition plate 5. Specifically, the elastic member 73 adopts an existing elastic member such as a spring. When the movable slat 21 rotates to fit the inner wall of the ball mill silo 1, the elastic member 73 pushes the thin rod 71 to move and reset, so that the convex tooth portion 72 moves out of the grate hole 51, which is conducive to the good passage of materials through the grate hole 51.

[0046] In an embodiment of the present invention, Figure 1 As shown, the discharge part 4 includes a discharge screen drum 41, and a discharge port 42 is provided at the bottom of the discharge screen drum 41. The bottom of the discharge screen drum 41 is designed to have a sieve hole structure for screening and discharging toward the discharge port 42. Specifically, the end of the ball mill silo 1 close to the discharge screen drum 41 is a partition plate 5, and the ground material flows into the discharge screen drum 41 through the partition plate 5 at the end. An air outlet 8 is horizontally provided in the discharge screen drum 41, and one end of the air outlet 8 is fixedly connected to the ball mill silo 1, that is, In the middle of the last partition plate 5, the other end is penetrated by a discharge screen drum 41 and an exhaust gas outlet 81 is opened. Preferably, a filter is provided at the exhaust gas outlet 81 to discharge the exhaust gas circulating in the ball mill silo 1. A blade 82 is connected to the side end of the air outlet 8. The blade 82 rotates synchronously with the ball mill silo 1 to stir the ground material flowing into the discharge screen drum 41. The ground material is screened and discharged by the discharge screen drum 41 to avoid a large amount of ground material blocking above the discharge port 42.

[0047] Among them, Figure 5 , Figure 6 , Figure 7 As shown, the inward rotation angle of the connecting shaft 22 and the movable slat 21 can be limited to, for example, 45°. Specifically, a limiting flange can be provided in the partition plate 5. When the connecting shaft 22 rotates, the limiting flange abuts against the fixed tooth portion 221 to limit the rotation angle of the connecting shaft 22, so that when it rotates into the grinding area, the material accumulates to allow the movable slat 21 to re-attach to the inner wall of the ball mill silo 1.

[0048] The present invention also provides a grinding method of waste porcelain material mixed grinding equipment, comprising the following steps:

[0049] The waste porcelain blocks are fed into the feeding box 31 through the feeding port 32, the connecting tube 6 rotates synchronously with the ball mill silo 1, and the crushing hammer 62 rotates rapidly to break the waste porcelain blocks. At the same time, the movable slats 21 in the grinding area of ​​the ball mill silo 1 are folded and attached to the inner wall of the ball mill silo 1, and the movable slats 21 in the non-grinding area rotate downward, and synchronously drive the movable flap 63 at the corresponding position in the connecting tube 6 to open, and the broken porcelain block fragments enter the connecting tube 6 along the open feeding port 61 and are fed into the ball mill silo 1;

[0050] If the waste porcelain blocks are too large or too hard, the grinding area of ​​the material in the ball mill silo 1 becomes higher, the number of movable slats 21 rotating downward at the top is reduced, the number of open material passages 61 is reduced, and the amount of feed entering the connecting tube 6 is reduced accordingly. If the waste porcelain blocks are too small or too hard, the grinding area of ​​the material in the ball mill silo 1 becomes lower, the number of movable slats 21 rotating downward at the top is increased, the number of open material passages 61 is increased, and the amount of feed entering the connecting tube 6 is increased accordingly.

[0051] Preferably, a movable tooth member 7 is provided in the partition plate 5. When the movable slat 21 rotates downward, the corresponding connecting shaft 22 pushes the movable tooth member 7 so that the movable tooth member 7 penetrates into the grate hole 51 to clean the residual abrasive in the grate hole 51.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0053] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waste porcelain material mixed grinding device, comprising a ball mill silo (1), wherein a lining plate (2) is provided on the inner wall of the ball mill silo (1), a feeding portion (3) is provided at one end of the ball mill silo (1), and a discharge portion (4) is provided at the other end, and a partition plate (5) is provided inside the ball mill silo (1), characterized in that: The lining plate (2) is composed of movable slats (21) distributed along the circumference of the inner wall of the ball mill silo (1), and a connecting shaft (22) is fixed to one side end of the movable slat (21). The connecting shaft (22) is transversely inserted into the ball mill silo (1) and is rotatably connected to the inner wall of the ball mill silo (1); The feeding part (3) comprises a feeding box (31), a feeding port (32) is provided at the bottom of the side end of the feeding box (31), and is used to feed waste porcelain blocks into the feeding box (31). A connecting tube (6) fixedly connected to the head end of the ball mill silo (1) is provided in the feeding box (31), a plurality of feeding ports (61) are provided on the side wall of the connecting tube (6), a plurality of crushing hammers (62) are arranged circumferentially on the outer side wall of the connecting tube (6), and the connecting tube (6) is provided with a plurality of crushing hammers (62) arranged along the circumferential direction. A movable flap (63) is provided on the inner side wall of the connecting tube (6) at each of the feeding ports (61), one end of the connecting shaft (22) is inserted into the connecting tube (6) and fixed to the movable flap (63), the connecting tube (6) rotates synchronously with the ball mill silo (1), the waste porcelain blocks are crushed by the crushing hammer (62), and the porcelain block fragments enter the connecting tube (6) along the open feeding port (61) and are fed into the ball mill silo (1); The partition plate (5) is provided with a grate hole (51) for the abrasive to pass through, and a movable tooth piece (7) is provided inside the partition plate (5). When the movable flap (63) is rotated to open, the corresponding connecting shaft (22) pushes the movable tooth piece (7) so that the movable tooth piece (7) passes into the grate hole (51) to clean the abrasive in the grate hole (51); The movable tooth member (7) comprises a thin rod (71) inserted into the partition plate (5), and convex teeth (72) are arranged at intervals on the thin rod (71). The portion of the connecting shaft (22) inserted into the partition plate (5) is connected to a fixed tooth portion (221). When the connecting shaft (22) rotates, the thin rod (71) is pushed to move by the fixed tooth portion (221), and the convex teeth (72) are inserted into each of the grate holes (51) along with the thin rod (71); An elastic member (73) is connected between one end of the thin rod (71) and the partition plate (5); when the movable slat (21) rotates to fit the inner wall of the ball mill silo (1), the elastic member (73) pushes the thin rod (71) to move and reset, so that the convex tooth portion (72) moves out of the grate hole (51).

2. A waste porcelain material mixing and grinding device according to claim 1, characterized in that: The bottom end of the feeding box (31) is provided with a feeding screen cylinder (34) for screening the remaining broken porcelain block slag.

3. The waste porcelain mixing and grinding equipment according to claim 1, characterized in that: A feeding chute (35) is fixedly connected to the side end of the feeding box (31). One end of the feeding chute (35) passes through the outside of the feeding box (31) and is provided with a hot air inlet (351). The other end of the feeding chute (35) passes horizontally into the connecting tube (6) and is connected to the ball mill silo (1). The feeding chute (35) passes into the interior of the connecting tube (6) and is designed to be open at the top.

4. A waste porcelain material mixing and grinding device according to claim 3, characterized in that: The top end of the feeding chute (35) passing through the outer part of the feeding box (31) is connected to a feeding chute (36), and the bottom end of the feeding chute (36) is rotatably connected to a bottom flap (37). In an initial state, hot air is blown in along the feeding chute (35), driving the bottom flap (37) to rotate. The bottom flap (37) closes the bottom end of the feeding chute (36). When porcelain block slag is added along the feeding chute (36), the bottom flap (37) is driven to rotate and open.

5. The waste porcelain material mixing and grinding equipment according to claim 1, characterized in that: The discharge part (4) comprises a discharge screen drum (41), a discharge port (42) is provided at the bottom end of the discharge screen drum (41), an air outlet (8) is transversely provided inside the discharge screen drum (41), one end of the air outlet drum (8) is fixedly connected to the ball mill silo (1), and the other end is passed through the discharge screen drum (41) and is provided with an exhaust port (81), and a blade (82) is connected to the side end of the air outlet drum (8), and the blade (82) rotates synchronously with the ball mill silo (1) and is used to stir the grinding material.

6. A grinding method using a waste porcelain mixed grinding device as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: The waste porcelain blocks are fed into the feeding box (31) through the feed port (32), the connecting tube (6) rotates synchronously with the ball mill silo (1), and the crushing hammer (62) rotates synchronously to break the waste porcelain blocks. At the same time, the movable slats (21) in the grinding area of ​​the ball mill silo (1) are folded and attached to the inner wall of the ball mill silo (1), and the movable slats (21) in the non-grinding area rotate downward, and synchronously drive the movable flap (63) at the corresponding position in the connecting tube (6) to open, and the broken porcelain block fragments enter the connecting tube (6) along the open feed port (61) and are fed into the ball mill silo (1); If the size of the waste porcelain block is too large or the hardness is too high, the grinding area of ​​the material in the ball mill silo (1) becomes higher, the number of movable slats (21) rotating downward at the top of the ball mill silo (1) decreases, the number of open material passages (61) decreases, and the amount of feed entering the connecting tube (6) decreases accordingly. If the size of the waste porcelain block is too small or the hardness is too low, the grinding area of ​​the material in the ball mill silo (1) becomes lower, the number of movable slats (21) rotating downward at the top increases, the number of open material passages (61) increases, and the amount of feed entering the connecting tube (6) increases accordingly.

7. The grinding method according to claim 6, characterized in that: A movable tooth piece (7) is arranged in the partition plate (5), and a grate hole (51) is provided on the partition plate (5) for abrasives to pass through. When the movable plate strip (21) rotates downward, the corresponding connecting shaft (22) pushes the movable tooth piece (7) so that the movable tooth piece (7) passes into the grate hole (51) to clean the residual abrasives in the grate hole (51).

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