Wet sand making machine and sand making method thereof

Abstract

The invention belongs to the technical field of wet-method sand making machines, and discloses a wet-method sand making machine and a sand making method thereof.The wet-method sand making machine comprises the wet-method sand making machine, a water flow circulator is fixedly connected to one side of the bottom end of the wet-method sand making machine, and a first water pipe and a second water pipe are fixedly connected to the two ends of the water flow circulator correspondingly; wastewater obtained after sand grains are cleaned is guided into the sedimentation machine box through a first water pipe by the water flow circulating machine, the wastewater entering the sedimentation machine box is filtered through a filter screen plate firstly, then a water plug clamped on the wet sand making machine is opened by a worker, a second water pipe is immediately connected, and then the wastewater enters the sedimentation machine box. Filtered wastewater is guided into the wet sand making machine again through the water flow circulator, water body recycling is conducted, a telescopic electric cylinder is started to drive a push plate to horizontally move in a precipitation machine box, when the push plate horizontally moves, sediment precipitated in the precipitation machine box can be pushed, a plurality of corrugated pipes are driven, and meanwhile suction force is generated; and the two suction heads mounted on each corrugated pipe are used for sucking and collecting the sediment.

Description

Technical Field

[0001] The invention belongs to the technical field of wet sand making machines, and specifically relates to a wet sand making machine and a sand making method thereof. Background Art

[0002] Wet sand making machine is a kind of sand making equipment. Its working principle is to complete the sand making operation by adding water and loosening the soil. Specifically, the stone is added into the rotating cylinder, and then the sand particles in the stone are ground out by water flushing and friction. This kind of sand making machine has advantages in crushing strength and sand making capacity. It is suitable for making sand from harder rocks and ores, and can also be used to make high-quality concrete aggregates. First of all, when using a wet sand making machine, it is necessary to plan and design a reasonable circulating water system, which includes drawing out wastewater from the sand washing link of the wet sand making machine, and introducing the water into a sedimentation tank through pipes or other conveying equipment. The wastewater in the sedimentation tank is then placed in a static state for treatment to achieve subsequent recycling. The existing filter net for filtering wastewater may be blocked by larger waste matter during use, affecting the wastewater filtration rate, and the mud and sand standing in the sedimentation tank are difficult to collect and clean manually. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a wet sand making machine and a sand making method thereof.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wet sand making machine, comprising a wet sand making machine, a water circulation machine fixedly connected to one side of the bottom end of the wet sand making machine, a water pipe one and a water pipe two fixedly connected to both ends of the water circulation machine, one end of the water pipe one and one side of the bottom end of the wet sand making machine are through-connected and fixedly connected, a filter collecting part is also provided on one side of the wet sand making machine, the filter collecting part includes a sedimentation machine box, the inner and outer walls of one end of the sedimentation machine box and the other end of the tube body of water pipe one are through-connected and fixedly connected, and two bracket plates are fixedly connected to the bottom end of the sedimentation machine box.

[0005] Preferably, T-shaped grooves are provided in the inner walls at both ends of the sedimentation box, and a filter screen for filtering waste water is fixedly connected to the inner wall of the sedimentation box. Water plugs are intermittently and tightly clamped on the inner and outer walls at the other end of the sedimentation box, and the inner and outer walls at the other end of the sedimentation box can be intermittently and tightly connected to the other end of the water pipe.

[0006] Preferably, a telescopic electric cylinder is fixedly connected to the outer wall of one end of the sedimentation box, and the rod body of the telescopic electric cylinder is also slidably connected to the inner and outer walls of one end of the sedimentation box. A push plate is fixedly connected to the rod body of one end of the telescopic electric cylinder, and the push plate is slidably connected to the inner wall of the sedimentation box.

[0007] Preferably, a bent plate frame is fixedly connected to the outer wall of the other end of the push plate, and a plurality of corrugated tubes are fixedly connected through the bent plate frame, and both ends of each of the corrugated tubes are made of hard material.

[0008] Preferably, a one-way valve is fixedly connected to one side of the tube body of each of the bellows, and two suction heads are respectively and fixedly connected to one side of the tube body of each of the bellows.

[0009] Preferably, a support plate is jointly and fixedly connected to the other side of the tube body of the plurality of bellows, the other side of the tube body of each bellows is fixedly connected to the inner and outer walls of one end of the wet sand making machine, and a sediment collection box is fixedly connected to the outer wall of one end of the support plate.

[0010] Preferably, one end of the sediment collection box is specifically connected to the other side of each of the corrugated pipes, and a material plug is intermittently and tightly clamped on the inner wall of the bottom end of the sediment collection box.

[0011] Preferably, two air plug plates are intermittently and tightly clamped on the inner and outer walls of the other end of the sediment collection box, and the water plug, the material plug and the two air plug plates are all made of natural rubber.

[0012] Preferably, two U-shaped brackets are fixedly connected to the outer wall of the other end of the bent plate frame, and a magnetic plate is jointly and fixedly connected to the top ends of the two U-shaped brackets. The top outer wall of the magnetic plate and the bottom outer wall of the filter screen plate are fitted and slidably connected, and a metal plate is also fitted and slidably connected to the top outer wall of the filter screen plate. The magnetic plate can drive the metal plate to move, and T-shaped sliders are fixedly connected to the outer walls of both ends of the metal plate, and the two T-shaped sliders are respectively slidably engaged with the inner walls of the two T-shaped slide grooves.

[0013] The steps of sand making process are as follows: S1. Raw material processing. Raw material processing is the first step in the wet sand making process. The raw materials are various natural stones, tailings, construction waste, etc. These raw materials are initially crushed to make their particle size meet the feeding requirements of the sand making machine. In the process of raw material processing, it is also necessary to pay attention to controlling the moisture content of the raw materials to ensure the smooth progress of subsequent processes; Screening finished products: After the initial crushing, the raw materials enter the wet sand making machine and will go through multi-stage crushing and screening. During the crushing process, the raw materials are crushed into sand particles of different particle sizes. Subsequently, the sand particles that meet the requirements are screened out through the screening equipment as finished sand; S2. Washing treatment. The finished sand after screening usually contains more impurities such as soil and stone powder. In order to improve the quality of sand, it needs to be washed. During the washing process, clean water is used to flush the sand particles so that the soil, stone powder and other impurities flow away with the water, thereby achieving the purpose of cleaning the sand particles. The surface of the washed sand particles is clean, and then the sand washing wastewater is filtered and utilized through the settling tank installed; Dehydration treatment: The water content of the sand after washing is high and needs to be dehydrated. During the dehydration process, equipment such as a vibrating screen or a centrifuge is usually used to quickly discharge the water in the sand through vibration or centrifugal force. The water content of the sand after dehydration is significantly reduced, which is convenient for subsequent treatment; S3. Drying process. In order to improve the dryness of the sand, the dehydrated sand particles need to be dried. During the drying process, natural drying, hot air drying and other methods can be used. Among them, hot air drying has the advantages of high efficiency and short time, so it is more common in practical applications. Finished product storage: the dried finished sand needs to be stored for use. During the storage process, attention should be paid to moisture-proof and dust-proof measures to ensure that the quality of the sand is not affected. At the same time, according to the needs of the project, the finished sand can be classified and stored in different particle sizes for subsequent use.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention introduces the waste water after washing the sand particles into the sedimentation machine box through the water pipe 1 through the water circulation machine. The waste water entering the sedimentation machine box is first filtered through the filter screen to separate some impurities that may be contained in the waste water. After that, the waste water in the sedimentation machine box will be stratified after being left still for a period of time. Some silt contained in the waste water will be precipitated on the inner wall of the bottom end of the sedimentation machine box. Then, the worker opens the water plug connected to the wet sand making machine and immediately connects the water pipe 2. Then, the filtered waste water is introduced into the wet sand making machine again through the water circulation machine to perform water recycling. The present invention starts the telescopic electric cylinder to drive the push plate to translate in the sedimentation box. When the push plate translates, it pushes the sediment in the sedimentation box. At the same time, the push plate also drives the bending plate frame to translate synchronously, so that the bending plate frame can pull the multiple bellows installed in conjunction with the support plate, so that suction force is generated at the same time, and the sediment sediment is sucked and collected through the two suction heads installed on each bellows. The one-way valve installed on the pipe body on one side of each bellows can only allow the sucked sediment to enter but not exit, so that the sediment can be introduced into the sediment collection box through the multiple bellows, and the sediment sediment is collected uniformly; When the bent plate frame of the present invention is pushed by the push plate, the bent plate frame will also synchronously drive the two U-shaped brackets and the magnetic plate to move, so that the moving magnetic plate can drive the metal plate that produces a magnetic attraction effect with it to move, and the moving metal plate will pass through the T-shaped sliders on both ends to be guided and translated in the T-shaped slide groove, and then some impurities that are initially filtered on the filter screen plate can be pushed to one side of the filter screen plate, so as to avoid excessive impact on the filtering effect of the wastewater on the filter screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the filtering and collecting part of the present invention; Figure 3 It is a schematic diagram of the overall front cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of a partial cross-sectional structure of the filtering and collecting part of the present invention; Figure 5 It is a schematic diagram of the local structure of the filtering and collecting part of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the partial enlarged structure at point A in the middle.

[0016] In the figure: 1. Wet sand making machine; 11. Water circulation machine; 2. Filtration and collection part; 21. Sedimentation chassis; 22. Bracket plate; 23. T-shaped slide; 24. Filter screen plate; 25. Water plug; 27. Telescopic electric cylinder; 28. Push plate; 29. ​​Bending plate frame; 230. Bellows; 231. One-way valve; 232. Suction head; 233. Support plate; 234. Sediment collection box; 235. Material plug; 236. Air plug plate; 237. U-shaped bracket; 238. Magnetic plate; 239. Metal plate; 240. T-shaped slider. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 6As shown, the present invention provides a wet sand making machine, including a wet sand making machine 1, a water circulation machine 11 is fixedly connected to one side of the bottom end of the wet sand making machine 1, and water pipe 1 and water pipe 2 are respectively fixedly connected to both ends of the water circulation machine 11. One end of the water pipe 1 is fixedly connected to one side of the bottom end of the wet sand making machine 1. A filter collecting part 2 is also provided on one side of the wet sand making machine 1. The filter collecting part 2 includes a sedimentation machine box 21. The inner and outer walls of one end of the sedimentation machine box 21 are fixedly connected to the other end of the water pipe 1. Two bracket plates 22 are fixedly connected to the bottom end of the sedimentation machine box 21.

[0019] The above scheme is adopted: the waste water used to clean the sand particles is introduced into the sedimentation machine box 21 through the water circulation machine 11 through the water pipe 1. The worker opens the water plug 25 connected to the wet sand making machine 1 and immediately connects the water pipe 2. The filtered waste water is then introduced into the wet sand making machine 1 again through the water circulation machine 11 to recycle the water.

[0020] T-shaped slide grooves 23 are provided in the inner walls at both ends of the sedimentation machine case 21, and a filter screen plate 24 for filtering waste water is fixedly connected to the inner wall of the sedimentation machine case 21. A water plug 25 is intermittently and tightly clamped on the inner and outer walls of the other end of the sedimentation machine case 21, and the inner and outer walls of the other end of the sedimentation machine case 21 can be intermittently and tightly connected with the other end of the water pipe 2. A telescopic electric cylinder 27 is fixedly connected to the outer wall of one end of the sedimentation machine case 21, and the rod body of the telescopic electric cylinder 27 is also slidably connected to the inner and outer walls of one end of the sedimentation machine case 21. A push plate 28 is fixedly connected to the rod body of one end of the telescopic electric cylinder 27, and the push plate 28 is slidably connected to the inner wall of the sedimentation machine case 21. A bent plate frame 29 is fixedly connected to the outer wall of the other end of the push plate 28, and a plurality of bellows 230 are fixedly connected to the bent plate frame 29, and the two end tube bodies of each bellows 230 are made of hard material.

[0021] The above scheme is adopted: the wastewater entering the sedimentation box 21 will first be filtered through the filter screen 24 to separate some impurities that may be contained in the wastewater. After that, the wastewater in the sedimentation box 21 will be stratified after being left standing for a period of time, and some silt contained in the wastewater will be deposited on the inner wall of the bottom end of the sedimentation box 21. The telescopic electric cylinder 27 is started to drive the push plate 28 to translate in the sedimentation box 21. When the push plate 28 translates, it will push the silt settled in the sedimentation box 21. At the same time, the push plate 28 will also synchronously drive the bending plate frame 29 to translate, so that the bending plate frame 29 can pull the multiple bellows 230 installed in conjunction with the support plate 233, so that suction force is generated at the same time.

[0022] A one-way valve 231 is fixedly connected to the tube body of one side of each bellows 230, and two suction heads 232 are respectively penetrated and fixedly connected to the tube body of one side of each bellows 230, and a support plate 233 is jointly penetrated and fixedly connected to the tube bodies on the other sides of the multiple bellows 230, and the tube body on the other side of each bellows 230 is penetrated and fixedly connected to the inner and outer walls of one end of the wet sand making machine 1, and a sediment collection box 234 is fixedly connected to the outer wall of one end of the support plate 233, and one end of the sediment collection box 234 is specifically penetrated and fixedly connected to the tube body on the other side of each bellows 230, and a material plug 235 is intermittently and tightly clamped on the inner wall of the bottom end of the sediment collection box 234, and two air plug plates 236 are intermittently and tightly clamped on the inner and outer walls of the other end of the sediment collection box 234, and the water plug 25, the material plug 235 and the two air plug plates 236 are all made of natural rubber.

[0023] The above scheme is adopted: the settled sediment is sucked and collected by two suction heads 232 installed on each bellows 230, and the one-way valve 231 installed on one side of the tube body of each bellows 230 allows the sucked sediment to only enter but not exit, thereby the sediment can be introduced into the sediment collection box 234 through multiple bellows 230, and the settled sediment can be collected uniformly, and the sediment can be cleaned and recovered later by opening the material plug 235 on the inner wall of the bottom end of the sediment collection box 234.

[0024] Two U-shaped brackets 237 are fixedly connected to the outer wall at the other end of the bent plate frame 29, and a magnetic plate 238 is jointly and fixedly connected to the top of the two U-shaped brackets 237. The top outer wall of the magnetic plate 238 and the bottom outer wall of the filter screen plate 24 are fitted and slidably connected. A metal plate 239 is also fitted and slidably connected to the top outer wall of the filter screen plate 24. The magnetic plate 238 can drive the metal plate 239 to move. T-shaped sliders 240 are fixedly connected to the outer walls at both ends of the metal plate 239, and the two T-shaped sliders 240 are respectively slidably engaged with the inner walls of the two T-shaped slide grooves 23.

[0025] The above scheme is adopted: when the bent plate frame 29 is pushed by the push plate 28, the bent plate frame 29 will also synchronously drive the two U-shaped brackets 237 and the magnetic plate 238 to move, so that the moving magnetic plate 238 can drive the metal plate 239 that produces a magnetic attraction effect with it to move, and the moving metal plate 239 will pass through the T-shaped sliders 240 on both ends to be guided and translated in the T-shaped slide groove 23, thereby pushing some impurities that were initially filtered on the filter screen plate 24 to move to one side of the filter screen plate 24, so as to avoid excessive impact on the filtering effect of the wastewater on the filter screen plate 24.

[0026] The steps of sand making process are as follows: S1. Raw material processing. Raw material processing is the first step in the wet sand making process. The raw materials are various natural stones, tailings, construction waste, etc. These raw materials are initially crushed to make their particle size meet the feeding requirements of the sand making machine. In the process of raw material processing, it is also necessary to pay attention to controlling the moisture content of the raw materials to ensure the smooth progress of subsequent processes; Screening finished products: After the initial crushing, the raw materials enter the wet sand making machine and will go through multi-stage crushing and screening. During the crushing process, the raw materials are crushed into sand particles of different particle sizes. Subsequently, the sand particles that meet the requirements are screened out through the screening equipment as finished sand; S2. Washing treatment. The finished sand after screening usually contains more impurities such as soil and stone powder. In order to improve the quality of sand, it needs to be washed. During the washing process, clean water is used to flush the sand particles so that the soil, stone powder and other impurities flow away with the water, thereby achieving the purpose of cleaning the sand particles. The surface of the washed sand particles is clean, and then the sand washing wastewater is filtered and utilized through the settling tank installed; Dehydration treatment: The water content of the sand after washing is high and needs to be dehydrated. During the dehydration process, equipment such as a vibrating screen or a centrifuge is usually used to quickly discharge the water in the sand through vibration or centrifugal force. The water content of the sand after dehydration is significantly reduced, which is convenient for subsequent treatment; S3. Drying process. In order to improve the dryness of the sand, the dehydrated sand particles need to be dried. During the drying process, natural drying, hot air drying and other methods can be used. Among them, hot air drying has the advantages of high efficiency and short time, so it is more common in practical applications. Finished product storage: the dried finished sand needs to be stored for use. During the storage process, attention should be paid to moisture-proof and dust-proof measures to ensure that the quality of the sand is not affected. At the same time, according to the needs of the project, the finished sand can be classified and stored in different particle sizes for subsequent use.

[0027] The working principle and use process of the present invention are as follows: the waste water washed with sand particles is introduced into the sedimentation machine box 21 through the water circulation machine 11 through the water pipe 1, and the waste water entering the sedimentation machine box 21 is first filtered through the filter screen 24 to separate some impurities that may be contained in the waste water, and then the waste water in the sedimentation machine box 21 will be stratified after being left still for a period of time, and some silt contained in the waste water will be precipitated on the inner wall of the bottom end of the sedimentation machine box 21, and then the worker opens the water plug 25 clamped on the wet sand making machine 1, and immediately connects the water pipe 2, and then the filtered waste water is introduced into the wet sand making machine 1 again through the water circulation machine 11, so as to recycle the water body; When only sediment is left in the sedimentation box 21, the telescopic electric cylinder 27 can be started to drive the push plate 28 to translate in the sedimentation box 21. When the push plate 28 translates, it will push the sediment in the sedimentation box 21. At the same time, the push plate 28 will also synchronously drive the bent plate frame 29 to translate, so that the bent plate frame 29 can pull the multiple bellows 230 installed in conjunction with the support plate 233, so that suction force is generated at the same time, and then the settled sediment is sucked and collected through the two suction heads 232 installed on each bellows 230. The one-way valve 231 installed on one side of the tube body of each bellows 230 will only allow the sucked sediment to enter but not exit. Therefore, the sediment can be introduced into the sediment collection box 234 through the multiple bellows 230, and the settled sediment can be collected uniformly. The plug 235 on the inner wall at the bottom of the collection box 234 cleans and recycles the silt. When the telescopic electric cylinder 27 drives the push plate 28 to reset, the multiple bellows 230 will generate an extrusion force, and the air pressure generated by the extrusion will clean some of the silt that may remain in each bellows 230, so that the silt and the gas generated by the extrusion enter the silt collection box 234 together. The space in the silt collection box 234 can accommodate the gas generated by the multiple bellows 230 together. Therefore, when the multiple bellows 230 are squeezed, the gas in the bellows 230 will not be pressed due to the space problem of the silt collection box 234, so that the bellows 230 cannot be reset and folded. Later, the gas plug plate 236 installed on the silt collection box 234 can be opened to deflate the inside for the next use. When the bent plate frame 29 is pushed by the push plate 28, the bent plate frame 29 will also synchronously drive the two U-shaped brackets 237 and the magnetic plate 238 to move, so that the moving magnetic plate 238 can drive the metal plate 239 that produces a magnetic attraction effect with it to move, and the moving metal plate 239 will pass through the T-shaped sliders 240 on both ends to be guided and translated in the T-shaped slide groove 23, thereby pushing some impurities that were initially filtered on the filter screen plate 24 to move to one side of the filter screen plate 24, thereby avoiding excessive impact on the filtering effect of the wastewater on the filter screen plate 24.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wet sand making machine, comprising a wet sand making machine (1), characterized in that: A water circulation machine (11) is fixedly connected to one side of the bottom end of the wet sand making machine (1), and water pipes 1 and 2 are respectively fixedly connected to both ends of the water circulation machine (11). One end of the water pipe 1 is fixedly connected to one side of the bottom end of the wet sand making machine (1). A filter collecting part (2) is also provided on one side of the wet sand making machine (1), and the filter collecting part (2) includes a sedimentation machine box (21). The inner and outer walls of one end of the sedimentation machine box (21) are fixedly connected to the other end of the tube body of the water pipe 1. Two bracket plates (22) are fixedly connected to the bottom end of the sedimentation machine box (21).

2. The wet sand making machine according to claim 1, characterized in that: T-shaped slide grooves (23) are provided in the inner walls at both ends of the sedimentation box (21), and a filter screen (24) for filtering waste water is fixedly connected to the inner wall of the sedimentation box (21). A water plug (25) is intermittently and tightly engaged with the inner and outer walls at the other end of the sedimentation box (21), and the inner and outer walls at the other end of the sedimentation box (21) can be intermittently and tightly engaged with the other end of the water pipe 2.

3. The wet sand making machine according to claim 2, characterized in that: A telescopic electric cylinder (27) is fixedly connected to the outer wall of one end of the sedimentation machine box (21), and the rod body of the telescopic electric cylinder (27) is also connected to the inner and outer walls of one end of the sedimentation machine box (21) in a through-sliding manner. A push plate (28) is fixedly connected to the rod body of one end of the telescopic electric cylinder (27), and the push plate (28) is connected to the inner wall of the sedimentation machine box (21) in a close-fitting and sliding manner.

4. The wet sand making machine according to claim 3, characterized in that: A bent plate frame (29) is fixedly connected to the outer wall of the other end of the push plate (28), and a plurality of corrugated tubes (230) are fixedly connected through the bent plate frame (29), and both ends of each of the corrugated tubes (230) are made of a hard material.

5. The wet sand making machine according to claim 4, characterized in that: A one-way valve (231) is fixedly connected to one side of the tube body of each bellows (230), and two suction heads (232) are respectively and fixedly connected to one side of the tube body of each bellows (230).

6. The wet sand making machine according to claim 5, characterized in that: A support plate (233) is fixedly connected to the other side tube bodies of the plurality of bellows (230), the other side tube body of each bellows (230) is fixedly connected to the inner and outer walls of one end of the wet sand making machine (1), and a sediment collection box (234) is fixedly connected to the outer wall of one end of the support plate (233).

7. The wet sand making machine according to claim 6, characterized in that: One end of the sediment collection box (234) is also specifically connected to the other side of each of the bellows (230) through a fixed connection, and a material plug (235) is intermittently and tightly clamped on the inner wall of the bottom end of the sediment collection box (234).

8. The wet sand making machine according to claim 7, characterized in that: Two air plug plates (236) are intermittently and tightly clamped on the inner and outer walls of the other end of the sediment collection box (234); the water plug (25), the material plug (235) and the two air plug plates (236) are all made of natural rubber.

9. The wet sand making machine according to claim 8, characterized in that: Two U-shaped brackets (237) are fixedly connected to the outer wall of the other end of the bent plate frame (29); a magnetic plate (238) is jointly fixedly connected to the top ends of the two U-shaped brackets (237); the top outer wall of the magnetic plate (238) is slidably connected to the bottom outer wall of the filter screen plate (24); a metal plate (239) is also slidably connected to the top outer wall of the filter screen plate (24); the magnetic plate (238) can drive the metal plate (239) to move; T-shaped sliders (240) are fixedly connected to the outer walls of both ends of the metal plate (239); the two T-shaped sliders (240) are slidably connected to the inner walls of the two T-shaped slide grooves (23), respectively.

10. A sand making method using a wet sand making machine, using a wet sand making machine as described in claims 1-9, characterized in that: The steps of sand making process are as follows: S1. Raw material processing. Raw material processing is the first step in the wet sand making process. The raw materials are various natural stones, tailings, construction waste, etc. These raw materials are initially crushed to make their particle size meet the feeding requirements of the sand making machine. In the process of raw material processing, it is also necessary to pay attention to controlling the moisture content of the raw materials to ensure the smooth progress of subsequent processes; Screening finished products: After the initial crushing, the raw materials enter the wet sand making machine and will go through multi-stage crushing and screening. During the crushing process, the raw materials are crushed into sand particles of different particle sizes. Subsequently, the sand particles that meet the requirements are screened out through the screening equipment as finished sand; S2. Washing treatment. The finished sand after screening usually contains more impurities such as soil and stone powder. In order to improve the quality of sand, it needs to be washed. During the washing process, clean water is used to flush the sand particles so that the soil, stone powder and other impurities flow away with the water, thereby achieving the purpose of cleaning the sand particles. The surface of the washed sand particles is clean, and then the sand washing wastewater is filtered and utilized through the settling tank installed; Dehydration treatment: The water content of the sand after washing is high and needs to be dehydrated. During the dehydration process, equipment such as a vibrating screen or a centrifuge is usually used to quickly discharge the water in the sand through vibration or centrifugal force. The water content of the sand after dehydration is significantly reduced, which is convenient for subsequent treatment; S3. Drying process. In order to improve the dryness of the sand, the dehydrated sand particles need to be dried. During the drying process, natural drying, hot air drying and other methods can be used. Among them, hot air drying has the advantages of high efficiency and short time, so it is more common in practical applications. Finished product storage: the dried finished sand needs to be stored for use. During the storage process, attention should be paid to moisture-proof and dust-proof measures to ensure that the quality of the sand is not affected. At the same time, according to the needs of the project, the finished sand can be classified and stored in different particle sizes for subsequent use.

Images