A device and method for preparing mixed solid waste-based coal mine filling materials

Abstract

The present invention relates to the technical field of material mixing, and discloses a device and method for preparing a mixed solid waste-based coal mine filling material, comprising a machine body, a feeding chamber and a mixing chamber provided inside the machine body, a feeding roller provided in the feeding chamber, a storage tank for storing cement provided outside the machine body, a stirrer provided for rotating in the mixing chamber, a discharge port provided at the bottom of the machine body, and a sealing plate for sealing the discharge port provided for rotating at the bottom of the machine body. The feeding roller preliminarily mixes the solid waste and feeds it into the mixing chamber, while the cement in the storage tank continuously and evenly falls into the mixing chamber, the stirrer rotates to quickly stir and mix the solid waste and cement, and then the sealing plate rotates to expose the discharge port, and the stirrer pushes the mixed filling material in the mixing chamber to the discharge port, completing the discharge, thereby increasing the speed of raw material mixing and thus improving the efficiency of filling material preparation.

Description

Technical Field

[0001] The present invention relates to the technical field of material mixing, and in particular to a device and method for preparing a mixing material of a solid waste-based coal mine filling material. Background Art

[0002] Solid waste-based coal mine filling material mixing mainly refers to a technology that uses solid waste as coal mine filling material. This practice can not only treat solid waste, but also improve the safety of coal mining and resource utilization efficiency.

[0003] This kind of filling material mixing usually involves the following aspects: 1. Solid waste materials: including industrial waste, construction waste, solid residues after treatment of domestic waste, etc. These wastes need to be processed and modified before they can become suitable mine filling materials; 2. Filling technology: The treated solid waste materials are mixed with other mining materials (such as cement, gypsum, etc.) in a certain proportion to make fillers. These fillers are used in mines to fill goafs, stabilize mine structures, and reduce the risks of mine subsidence and collapse; 3. Environmental protection and economic benefits: The use of solid waste-based filling materials can reduce the impact of waste on the environment, while reducing the cost of filling materials and improving the economic benefits of mines.

[0004] The application of this technology can help coal mining companies achieve resource recycling and environmental protection while ensuring safe production. Solid waste-based coal mine filling materials can not only effectively utilize solid waste and reduce environmental pollution, but also solve the problem of goaf areas left after coal mining to a certain extent, ensuring coal mine safety. The research and application of solid waste-based coal mine filling materials embodies the concept of resource recycling and environmental protection, and is one of the important ways to promote the development of green mining.

[0005] At present, the existing technology usually puts solid waste and raw materials such as cement into a mixer together, mixes the raw materials evenly through the mixer, prepares the filling material and then takes it out of the mixer. However, putting the raw materials together makes it difficult for the mixer to quickly mix the raw materials evenly, which easily affects the preparation efficiency of the filling material; therefore, it does not meet the existing needs. In this regard, we propose a solid waste-based coal mine filling material mixing preparation device and method. Summary of the Invention

[0006] The present invention provides a device and method for mixing and preparing solid waste-based coal mine filling materials, which has the beneficial effect of quickly and evenly mixing the raw materials, thereby maximizing the efficiency of filling material preparation. It solves the problem of the prior art mentioned in the above background technology, in which solid waste and raw materials such as cement are usually put into a mixer together, and the raw materials are mixed evenly by the mixer, and then taken out of the mixer after being prepared into filling materials. However, putting the raw materials together makes it difficult for the mixer to quickly and evenly mix the raw materials, which easily affects the efficiency of filling material preparation.

[0007] The present invention provides the following technical solution: a solid waste-based coal mine filling material mixing and preparation device, comprising a machine body, a feeding chamber and a mixing chamber that are interconnected, a feeding roller is rotatably arranged inside the feeding chamber, and the feeding roller is used to feed solid waste into the mixing chamber, a storage tank is provided on the outside of the machine body, the storage tank is intermittently connected to the mixing chamber, the storage tank is used to store cement, an agitator is rotatably arranged inside the mixing chamber, a second motor is installed on the outside of the machine body, the second motor is used to drive the agitator, a discharge port is provided at the bottom of the machine body, a sealing plate is rotatably inserted at the bottom of the machine body, and the sealing plate is used to seal the discharge port.

[0008] As an optional solution of the solid waste-based coal mine filling material mixing preparation device described in the present invention, wherein: a first rotating shaft is installed at the end of the feeding roller, the middle part of the first rotating shaft is rotatably inserted into the side wall of the machine body, a first motor is installed on the outside of the machine body, the output shaft of the first motor is transmission-connected to the first rotating shaft, a feed hopper is connected to the outside of the machine body, the feed hopper is connected to the feeding cavity, and the feed hopper is used to put solid waste into the feeding cavity.

[0009] As an optional solution for the solid waste-based coal mine filling material mixing preparation device described in the present invention, wherein: a fixed shell is installed on the upper side of the machine body, a baffle is rotatably installed on the inner side of the fixed shell, the number of the baffles is set to several, teeth are provided at one end of the baffle, a gear ring engaged with the teeth is rotatably provided on the inner side of the fixed shell, a limiting rod is installed on the outer side of the gear ring, the number of the limiting rods is set to several, a groove body used in conjunction with the limiting rod is provided on the inner wall of the fixed shell, the limiting rods are slidably inserted in the groove body of the fixed shell, a first material hole is provided at the bottom of the fixed shell, a second material hole connected to the first material hole is provided on the upper side of the machine body, and the other ends of the baffles contact each other and cover the first material hole.

[0010] As an optional solution of the solid waste-based coal mine filling material mixing and preparation device described in the present invention, wherein: a first gear that meshes with the side of the gear ring is also rotatably installed inside the fixed shell, a second gear that intermittently meshes with the first gear is sleeved on the outer side of the first rotating shaft, and the side of the second gear is inserted into the upper side of the machine body, and the first gear and the second gear are both set as bevel gears.

[0011] As an optional solution of the solid waste-based coal mine filling material mixing preparation device described in the present invention, wherein: the side of the first rotating shaft is slidably inserted with a limit plate, the number of the limit plates is set to several, a spring is provided on the inside of the first rotating shaft, the two ends of the spring are respectively connected to the inner wall of the first rotating shaft and the limit plate, the limit plate is slidably inserted on the inside of the second gear, and a control rod is installed on the outside of the second gear, the number of the control rods is set to several, the inner wall of the machine body is provided with a track groove for use with the control rod, the end of the control rod is slidably inserted in the track groove, the track groove is set to a circular arc groove, and the depth of the track groove gradually increases, a push rod is also installed on the outside of the second gear, the side wall of the machine body is provided with an arc groove, and the middle part of the push rod is inserted in the arc groove of the side wall of the machine body.

[0012] As an optional solution of the solid waste-based coal mine filling material mixing and preparation device described in the present invention, the agitator includes a first stirring rod and a second stirring rod, a first mounting bracket is provided in the mixing chamber, the number of the first stirring rod and the second stirring rod are both set to two, and the two first stirring rods are symmetrically connected to the bottom of the first mounting bracket, a turntable is rotatably inserted inside the first mounting bracket, the two second stirring rods are symmetrically connected to the bottom of the turntable, a second rotating shaft is installed on the upper side of the turntable, the middle part of the second rotating shaft is rotatably inserted on the upper side of the first mounting bracket, and the upper end of the second rotating shaft is rotatably inserted inside the body.

[0013] As an optional solution of the solid waste-based coal mine filling material mixing preparation device described in the present invention, wherein: the output shaft of the second motor is equipped with a third rotating shaft, and the upper end of the third rotating shaft is respectively provided with a third gear and a fourth gear, and the third gear and the fourth gear are both inserted into the side wall of the machine body, and a fifth gear is provided on the outer side of the second rotating shaft, the third gear is engaged with the fifth gear, and the fourth gear is engaged with the first mounting bracket.

[0014] As an optional solution for the solid waste-based coal mine filling material mixing preparation device described in the present invention, a fourth rotating shaft is installed at the bottom of the sealing plate, the middle part of the fourth rotating shaft is rotatably inserted into the bottom of the machine body, a second mounting frame is installed at the bottom end of the fourth rotating shaft, a one-way bearing is provided at the lower end of the third rotating shaft, and a sixth gear is provided on the outer ring of the one-way bearing which is meshed with the second mounting frame.

[0015] As an optional solution of the solid waste-based coal mine filling material mixing preparation device described in the present invention, the first mounting frame and the second mounting frame both include a disc, a gear ring arranged on the outside of the disc, and a support rod connected between the disc and the gear ring, the disc and the gear ring are concentric, and the number of the support rods is set to be several.

[0016] The present invention also proposes a mixed preparation method of solid waste-based coal mine filling materials, comprising the following specific steps:

[0017] S1. Preliminary mixing of solid waste: Solid waste is fed into the feeding chamber through the feed hopper, and the rotating feed roller continuously transports the solid waste into the mixing chamber. As the solid waste moves within the feeding chamber, the rotating feed roller transports the solid waste while performing preliminary mixing.

[0018] S2. Mixing the solid waste and cement: The preliminarily mixed solid waste falls from the feeding chamber into the mixing chamber, and the cement in the storage tank continuously falls into the mixing chamber. The second motor drives the agitator to rotate to rapidly mix the solid waste and cement, thereby preparing a filling material;

[0019] S3. Discharging the filling material: the second motor drives the blocking plate to rotate to expose the discharge port, and the rotating agitator pushes the mixed filling material toward the discharge port to complete the discharging.

[0020] The present invention has the following beneficial effects:

[0021] 1. The solid waste-based coal mine filling material mixing and preparation device and method, solid waste is put into the feeding chamber through the feeding hopper, and the first motor drives the feeding roller to rotate through the first rotating shaft. The rotating feeding roller continuously transports the solid waste into the mixing chamber. At the same time, when the solid waste moves in the feeding chamber, due to the spiral structure of the feeding roller, the rotating feeding roller can transport the solid waste while performing preliminary mixing. Subsequently, the solid waste falls from the feeding chamber into the mixing chamber, and at the same time, the cement in the storage tank also continuously and evenly falls into the mixing chamber. The second motor rotates forward to drive the agitator to rotate to quickly stir and mix the solid waste and cement, thereby preparing the filling material;

[0022] By reversing the second motor, the sealing plate is driven to rotate 180 degrees to expose the discharge port. Then the second motor is rotated forward to drive the agitator to rotate, and the filling material mixed in the mixing chamber is continuously pushed to the discharge port to complete the discharge, thereby increasing the speed of raw material mixing and improving the efficiency of filling material preparation.

[0023] 2. In the device and method for preparing mixed solid waste-based coal mine filling materials, a first motor drives a second gear to rotate. The meshing of the second gear and the first gear causes the first gear to drive a gear ring to rotate. The meshing of the gear ring and the baffles causes a plurality of baffles to rotate and separate from each other simultaneously, thereby exposing the first material hole. Subsequently, the second gear separates from the first gear, releasing the meshing relationship, allowing cement in the storage tank to continuously and evenly fall into the mixing chamber through the first and second material holes.

[0024] When the mixing is completed, the second gear is re-engaged with the first gear, and the first motor drives the second gear to rotate in the opposite direction, driving the baffle to rotate so that the baffles contact each other and reset, thereby re-closing the first material hole. Then the first motor stops working, which is convenient for controlling the opening and closing of the storage tank, so that cement can be added at the appropriate time;

[0025] Not only that, the second motor drives the third gear and the fourth gear to rotate through the third shaft, and through the engagement of the third gear and the fifth gear, drives the turntable and the second stirring rod to rotate in the inner ring of the mixing chamber, and through the engagement of the fourth gear and the first mounting bracket, drives the first stirring rod to rotate in the outer ring of the mixing chamber. Moreover, due to the different diameters of the third gear and the fourth gear, the second stirring rod on the inner ring rotates faster, thereby further improving the preparation efficiency of the filling material.

[0026] 3. In the device and method for preparing mixed solid waste-based coal mine filling materials, when the first rotating shaft drives the second gear to rotate, the control rod slides toward the depth of the track groove, causing the control rod to pull the second gear away from the first gear, disengaging it from the first gear, and the limiting plate slides out of the second gear. At the same time, the first material hole is completely exposed, so that when the first rotating shaft drives the feed roller to rotate, the second gear remains stationary, thereby allowing continuous cement feeding;

[0027] Push the push rod inward, driving the second gear to rotate while approaching the first gear, and contacting the limit plate to compress the spring. Then the limit plate slides into the slide groove of the inner ring of the second gear and the spring recovers, so that the second gear is reset and meshes with the first gear again, making it easier to control the meshing or separation of the second gear and the first gear, thereby making it easier to control whether the cement in the storage tank is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the internal three-dimensional structure of the present invention.

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 3 It is a schematic diagram of the cutaway structure of the present invention.

[0031] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of the feed roller of the present invention.

[0033] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0034] Figure 7It is a schematic diagram of the mutual contact structure of the baffles of the present invention.

[0035] Figure 8 It is a schematic diagram of the structure in which the baffles of the present invention are separated from each other.

[0036] Figure 9 It is a schematic diagram of the meshing cross-section structure of the second gear of the present invention.

[0037] Figure 10 This is a schematic diagram of the separated and cutaway structure of the second gear of the present invention.

[0038] Figure 11 It is a schematic diagram of the explosion structure of the limiting piece of the present invention.

[0039] In the figure: 100, machine body; 110, feeding chamber; 120, mixing chamber; 130, feeding roller; 131, first rotating shaft; 132, first motor; 133, feeding hopper; 140, storage tank; 150, fixed shell; 151, baffle; 152, teeth; 153, gear ring; 154, limiting rod; 155, first material hole; 156, second material hole; 160, first gear; 161, second gear; 170, limiting plate; 171, spring; 172, control rod; 173, track groove; 174, push rod ;180, agitator;181, first agitating rod;182, second agitating rod;190, second motor;200, first mounting bracket;201, turntable;202, second rotating shaft;210, third rotating shaft;211, third gear;212, fourth gear;213, fifth gear;220, discharge port;230, sealing plate;231, fourth rotating shaft;232, second mounting bracket;2321, disc;2322, gear ring;2323, support rod;233, one-way bearing;234, sixth gear. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1: This example aims to solve the problem of the prior art that solid waste and raw materials such as cement are usually put into a mixer together, and the raw materials are mixed evenly by the mixer, and then taken out of the mixer after being prepared into a filling material. However, putting the raw materials together makes it difficult for the mixer to mix the raw materials evenly quickly, which easily affects the efficiency of preparing the filling material. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5and Figure 6 A solid waste-based coal mine filling material mixing and preparation device includes a body 100, a feeding chamber 110 and a mixing chamber 120 that are interconnected are opened inside the body 100, a feeding roller 130 is rotatably arranged inside the feeding chamber 110, and the outer side of the feeding roller 130 is set as a spiral structure, and the feeding roller 130 is used to feed solid waste into the mixing chamber 120.

[0042] A first rotating shaft 131 is fixedly installed at the end of the feeding roller 130, and the middle part of the first rotating shaft 131 is rotatably inserted into the side wall of the body 100 through a bearing. A first motor 132 is fixedly installed on the outside of the body 100, and the output shaft of the first motor 132 is transmission-connected to the first rotating shaft 131. A feed hopper 133 is fixedly connected to the outside of the body 100, and the feed hopper 133 is communicated with the feeding chamber 110. The feed hopper 133 is used to put solid waste into the feeding chamber 110.

[0043] A storage tank 140 is provided on the outside of the body 100, and the storage tank 140 is intermittently connected with the mixing chamber 120. The storage tank 140 is used to store cement. The upper side of the storage tank 140 can also be connected to a pipeline for conveying cement, so as to maintain a sufficient amount of cement in the storage tank 140. An agitator 180 is rotatably provided inside the mixing chamber 120, and a second motor 190 is installed on the outside of the body 100. The second motor 190 is used to drive the agitator 180. A discharge port 220 is opened at the bottom of the body 100, and a sealing plate 230 is rotatably inserted at the bottom of the body 100. The sealing plate 230 is used to seal the discharge port 220.

[0044] A fourth rotating shaft 231 is fixedly installed at the edge position of the bottom of the blocking plate 230, and the middle part of the fourth rotating shaft 231 is rotatably plugged into the bottom of the body 100 through a bearing, and a second mounting bracket 232 is fixedly installed at the bottom end of the fourth rotating shaft 231. A one-way bearing 233 is sleeved on the lower end of the third rotating shaft 210, and the outer ring of the one-way bearing 233 is sleeved with a sixth gear 234 that meshes with the second mounting bracket 232. The inner ring of the one-way bearing 233 is fixedly fitted with the third rotating shaft 210, and the outer ring of the one-way bearing 233 is fixedly fitted with the sixth gear 234. A ratchet structure is provided inside the one-way bearing 233, so that when the third rotating shaft 210 rotates forward, the sixth gear 234 remains stationary, and when the third rotating shaft 210 rotates reversely, it drives the sixth gear 234 to rotate together. The one-way bearing 233 and the ratchet structure are technical means well known to technicians in this field and will not be elaborated here.

[0045] The first mounting frame 200 and the second mounting frame 232 each include a disk 2321, a gear ring 2322 disposed outside the disk 2321, and a support rod 2323 fixedly connected between the disk 2321 and the gear ring 2322. The disk 2321 and the gear ring 2322 are concentric, and the number of the support rods 2323 is set to be several. Figure 6The second mounting frame 232 includes a disc 2321, a gear ring 2322 and a support rod 2323, and the first mounting frame 200 also includes the above three structures, but the difference is that the size of the disc 2321 in the first mounting frame 200 is larger than the size of the disc 2321 in the second mounting frame 232, the inner diameter of the gear ring 2322 in the first mounting frame 200 is larger than the inner diameter of the gear ring 2322 in the second mounting frame 232, the diameter of the support rod 2323 in the first mounting frame 200 is larger than the diameter of the support rod 2323 in the second mounting frame 232, and the installation positions and corresponding quantities of the three structures in the first mounting frame 200 and the second mounting frame 232 are exactly the same.

[0046] In this embodiment: solid waste is put into the feeding chamber 110 through the feeding hopper 133, and the first motor 132 drives the feeding roller 130 to rotate through the first rotating shaft 131. The rotating feeding roller 130 continuously transports the solid waste into the mixing chamber 120. At the same time, when the solid waste moves in the feeding chamber 110, due to the spiral structure of the feeding roller 130, the rotating feeding roller 130 can transport the solid waste while performing preliminary mixing. Subsequently, the solid waste falls from the feeding chamber 110 into the mixing chamber 120, and at the same time, the cement in the storage tank 140 also continuously and evenly falls into the mixing chamber 120. The second motor 190 rotates forward to drive the agitator 180 to rotate and quickly stir and mix the solid waste and cement, thereby preparing a filling material;

[0047] By reversing the second motor 190, the sealing plate 230 is driven to rotate one hundred and eighty degrees to expose the discharge port 220. Then, the second motor 190 is rotated forward to drive the agitator 180 to rotate, and the filling material mixed in the mixing chamber 120 is continuously pushed to the discharge port 220 to complete the discharge, thereby increasing the speed of raw material mixing, thereby improving the efficiency of filling material preparation, and solving the problem of the existing technology as much as possible. Usually, solid waste and raw materials such as cement are put into the mixer together, and the raw materials are mixed evenly by the mixer. After the raw materials are prepared into the filling material, they are taken out of the mixer. However, putting the raw materials together makes it difficult for the mixer to quickly mix the raw materials evenly, which easily affects the efficiency of filling material preparation.

[0048] It should be noted that after the discharge is completed, the second motor 190 is reversed to drive the blocking plate 230 to rotate 180 degrees and reset, so that the discharge port 220 can be closed again.

[0049] Example 2: This example is intended to further solve the problem of inconvenience in controlling the opening and closing of the storage tank 140 so that cement can be put in at the right time, which can easily affect the efficiency of filling material preparation. This example is an improvement made on the basis of Example 1. For details, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 A fixed shell 150 is fixedly installed on the upper side of the machine body 100, and a baffle 151 is rotatably installed on the inner side of the fixed shell 150 by rivets. The number of baffles 151 is set to several, and one end of the baffle 151 is provided with teeth 152. A gear ring 153 that meshes with the teeth 152 is rotatably provided on the inner side of the fixed shell 150, and the teeth 152 mesh with the inner ring of the gear ring 153. A limit rod 154 is fixedly installed on the outer side of the gear ring 153, and the number of limit rods 154 is set to several. A groove body for cooperating with the limit rod 154 is provided on the inner wall of the fixed shell 150, and the limit rods 154 are slidably inserted into the groove body of the fixed shell 150 respectively. A first material hole 155 is provided at the bottom of the fixed shell 150, and a second material hole 156 communicating with the first material hole 155 is provided on the upper side of the machine body 100. The other ends of the baffle 151 contact each other and cover the first material hole 155.

[0050] The agitator 180 includes a first stirring rod 181 and a second stirring rod 182. A first mounting bracket 200 is provided in the mixing chamber 120. The number of the first stirring rod 181 and the second stirring rod 182 is set to two, and the two first stirring rods 181 are symmetrically fixedly connected to the bottom of the first mounting bracket 200. A turntable 201 is rotatably inserted inside the first mounting bracket 200. The two second stirring rods 182 are symmetrically fixedly connected to the bottom of the turntable 201. A second rotating shaft 202 is fixedly installed on the upper side of the turntable 201. The middle part of the second rotating shaft 202 is rotatably inserted into the upper side of the first mounting bracket 200, and the upper end of the second rotating shaft 202 is rotatably inserted into the inner side of the body 100 through a bearing.

[0051] A mounting plate is fixedly mounted on the outer wall of the body 100, the second motor 190 is mounted on the mounting plate, the output shaft of the second motor 190 is fixedly mounted with a third rotating shaft 210, the upper ends of the third rotating shaft 210 are fixedly sleeved with a third gear 211 and a fourth gear 212, and the diameter of the third gear 211 is larger than the diameter of the fourth gear 212. The third gear 211 and the fourth gear 212 are both plugged into the side wall of the body 100, and a fifth gear 213 is fixedly sleeved on the outer side of the second rotating shaft 202. The third gear 211 is meshed with the fifth gear 213, and the fourth gear 212 is meshed with the outer ring of the first mounting frame 200.

[0052] In this embodiment, the first motor 132 drives the second gear 161 to rotate. The meshing of the second gear 161 and the first gear 160 causes the first gear 160 to drive the gear ring 153 to rotate. The meshing of the gear ring 153 and the baffles 151 causes the baffles 151 to rotate and separate from each other simultaneously, thereby exposing the first material hole 155. Subsequently, the second gear 161 separates from the first gear 160, releasing the meshing relationship, so that the cement in the storage tank 140 continuously and evenly falls into the mixing chamber 120 through the first material hole 155 and the second material hole 156.

[0053] When mixing is completed, the second gear 161 is re-engaged with the first gear 160, and the first motor 132 drives the second gear 161 to rotate in the opposite direction, driving the baffle 151 to rotate, so that the baffles 151 contact each other and reset, thereby re-closing the first material hole 155. Then the first motor 132 stops working, which facilitates the control of the opening and closing of the storage tank 140, so that cement can be added at the appropriate time.

[0054] Not only that, the second motor 190 drives the third gear 211 and the fourth gear 212 to rotate through the third rotating shaft 210, and drives the turntable 201 and the second stirring rod 182 to rotate in the inner circle of the mixing chamber 120 through the engagement of the third gear 211 with the fifth gear 213, and drives the first stirring rod 181 to rotate in the outer circle of the mixing chamber 120 through the engagement of the fourth gear 212 with the first mounting bracket 200. Moreover, due to the different diameters of the third gear 211 and the fourth gear 212, the inner circle of the second stirring rod 182 rotates faster, thereby further improving the preparation efficiency of the filling material.

[0055] Example 3: This example is intended to solve the problem of inconvenience in controlling the engagement or separation of the second gear 161 and the first gear 160, thereby inconvenience in controlling whether the cement in the storage tank 140 is put in. This example is an improvement made on the basis of Example 2. For details, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9 、 Figure 10 and Figure 11 A first gear 160 that meshes with the outer ring of the gear ring 153 is rotatably installed inside the fixed shell 150, and a second gear 161 that intermittently meshes with the first gear 160 is movably sleeved on the outside of the first rotating shaft 131. The side of the second gear 161 is inserted into the upper side of the body 100. Both the first gear 160 and the second gear 161 are configured as bevel gears.

[0056] The first rotating shaft 131 is slidably inserted into the side of the limiting piece 170, and the number of the limiting pieces 170 is set to be several. A spring 171 is provided on the inside of the first rotating shaft 131. The two ends of the spring 171 are fixedly connected to the inner wall of the first rotating shaft 131 and the limiting piece 170 respectively. The inner ring of the second gear 161 is provided with a sliding groove for use with the limiting piece 170. The limiting piece 170 is slidably inserted in the sliding groove of the inner ring of the second gear 161. A control rod 172 is fixedly installed on the outside of the second gear 161 to control The end of the rod 172 is set to a sphere, and the number of control rods 172 is set to be several. The inner wall of the body 100 is provided with a track groove 173 used in conjunction with the control rod 172. The end of the control rod 172 is slidably inserted into the track groove 173. The track groove 173 is set to be an arc groove, and the depth of the track groove 173 gradually increases. A push rod 174 is also fixedly installed on the outside of the second gear 161. An arc groove is provided on the side wall of the body 100, and the middle part of the push rod 174 is inserted into the arc groove on the side wall of the body 100.

[0057] In this embodiment, when the first rotating shaft 131 drives the second gear 161 to rotate, the control rod 172 slides toward the depth of the track groove 173, so that the control rod 172 pulls the second gear 161 away from the first gear 160, disengaging from the first gear 160, and the limiting piece 170 slides out of the second gear 161. At the same time, the first material hole 155 is completely exposed, so that when the first rotating shaft 131 drives the feeding roller 130 to rotate, the second gear 161 remains stationary, thereby allowing cement to be continuously fed;

[0058] Push the push rod 174 inward, driving the second gear 161 to rotate while approaching the first gear 160, and contacting the limit plate 170 to compress the spring 171. Then the limit plate 170 slides into the slide groove of the inner ring of the second gear 161 and the spring 171 recovers, so that the second gear 161 is reset and meshed with the first gear 160 again, making it easier to control the meshing or separation of the second gear 161 and the first gear 160, thereby making it easier to control whether the cement in the storage tank 140 is released.

[0059] Example 4: A method for preparing a mixed solid waste-based coal mine filling material, comprising the following specific steps:

[0060] S1. Preliminary mixing of solid waste: Solid waste is fed into the feeding chamber 110 through the feed hopper 133. The rotating feed roller 130 continuously transports the solid waste into the mixing chamber 120. As the solid waste moves within the feeding chamber 110, the rotating feed roller 130 transports the solid waste while performing preliminary mixing.

[0061] S2. Mixing of solid waste and cement: The preliminarily mixed solid waste falls from the feeding chamber 110 into the mixing chamber 120, while the cement in the storage tank 140 also continuously falls into the mixing chamber 120. The agitator 180 is driven by the second motor 190 to rotate and rapidly mix the solid waste and cement, thereby preparing a filling material;

[0062] S3. Discharging the filling material: The second motor 190 drives the sealing plate 230 to rotate, exposing the discharge port 220, and then the rotating agitator 180 pushes the mixed filling material toward the discharge port 220, thereby completing the discharge.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for mixing and preparing solid waste-based coal mine filling materials, comprising a body, wherein a feeding chamber and a mixing chamber are provided in the body and are interconnected, and wherein: A feeding roller is rotatably provided inside the feeding chamber, and the feeding roller is used to feed the solid waste into the mixing chamber. A storage tank is provided outside the machine body, and the storage tank is intermittently connected to the mixing chamber. The storage tank is used to store cement. An agitator is rotatably provided inside the mixing chamber, and a second motor is installed outside the machine body, and the second motor is used to drive the agitator. A discharge port is provided at the bottom of the machine body, and a sealing plate is rotatably inserted at the bottom of the machine body, and the sealing plate is used to seal the discharge port. The output shaft of the second motor is equipped with a third rotating shaft, the bottom of the blocking plate is equipped with a fourth rotating shaft, the middle part of the fourth rotating shaft is rotatably plugged into the bottom of the machine body, the bottom end of the fourth rotating shaft is equipped with a second mounting bracket, the lower end of the third rotating shaft is sleeved with a one-way bearing, and the outer ring of the one-way bearing is sleeved with a sixth gear that meshes with the second mounting bracket; A ratchet structure is provided inside the one-way bearing, so that when the third shaft rotates in the forward direction, the sixth gear remains stationary, and when the third shaft rotates in the reverse direction, it drives the sixth gear to rotate together, continuously pushing the mixed filling material in the mixing chamber to the discharge port, completing the discharge and increasing the speed of raw material mixing; A fixed shell is installed on the upper side of the machine body, and a baffle is rotatably installed on the inner side of the fixed shell. The number of baffles is set to be several, and teeth are provided at one end of the baffle. A gear ring engaged with the teeth is rotatably provided on the inner side of the fixed shell, and a limit rod is installed on the outer side of the gear ring. The number of limit rods is set to be several, and a groove body used in conjunction with the limit rod is provided on the inner wall of the fixed shell. The limit rods are respectively slidably inserted into the groove body of the fixed shell, a first material hole is provided at the bottom of the fixed shell, and a second material hole connected with the first material hole is provided on the upper side of the machine body. The other ends of the baffles contact each other and cover the first material hole; A first gear meshing with the side of the gear ring is rotatably mounted inside the fixed housing. A second gear intermittently meshing with the first gear is sleeved on the outer side of the first rotating shaft. The side of the second gear is plugged into the upper side of the machine body. Both the first gear and the second gear are configured as bevel gears. The agitator includes a first stirring rod and a second stirring rod, and a first mounting bracket is arranged in the mixing chamber. The first mounting bracket and the second mounting bracket both include a disc, a gear ring arranged on the outside of the disc, and a support rod connected between the disc and the gear ring. The disc and the gear ring are concentric, and the number of support rods is set to be several.

2. The device for mixing and preparing solid waste-based coal mine filling materials according to claim 1, characterized in that: A first rotating shaft is installed at the end of the feed roller, and the middle part of the first rotating shaft is rotatably inserted into the side wall of the machine body. A first motor is installed on the outside of the machine body, and the output shaft of the first motor is transmission-connected to the first rotating shaft. A feed hopper is connected to the outside of the machine body, and the feed hopper is connected to the feeding cavity. The feed hopper is used to put solid waste into the feeding cavity.

3. The device for mixing and preparing solid waste-based coal mine filling materials according to claim 2, characterized in that: The side of the first rotating shaft is slidably inserted with a limit plate, and the number of limit plates is set to be several. A spring is provided on the inside of the first rotating shaft, and the two ends of the spring are respectively connected to the inner wall of the first rotating shaft and the limit plate. The limit plate is slidably inserted on the inside of the second gear, and a control rod is installed on the outside of the second gear. The number of control rods is set to be several. A track groove for use with the control rod is opened on the inner wall of the body. The end of the control rod is slidably inserted in the track groove. The track groove is set to be an arc groove, and the depth of the track groove gradually increases. A push rod is also installed on the outside of the second gear, and an arc groove is opened on the side wall of the body. The middle part of the push rod is inserted in the arc groove on the side wall of the body.

4. The device for mixing and preparing solid waste-based coal mine filling materials according to claim 3, characterized in that: The number of the first stirring rod and the second stirring rod is set to two, and the two first stirring rods are symmetrically connected to the bottom of the first mounting frame, a turntable is rotatably inserted inside the first mounting frame, and the two second stirring rods are symmetrically connected to the bottom of the turntable, and a second rotating shaft is installed on the upper side of the turntable. The middle part of the second rotating shaft is rotatably inserted on the upper side of the first mounting frame, and the upper end of the second rotating shaft is rotatably inserted inside the machine body.

5. The device for mixing and preparing solid waste-based coal mine filling materials according to claim 4, characterized in that: The third gear and the fourth gear are respectively sleeved on the upper end of the third rotating shaft, and the third gear and the fourth gear are both plugged into the side wall of the machine body. The fifth gear is sleeved on the outer side of the second rotating shaft, and the third gear is engaged with the fifth gear, and the fourth gear is engaged with the first mounting bracket.

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