A slurry separation process and equipment

Abstract

The invention discloses a mud separation process and equipment thereof, and belongs to the technical field of mud and sand separation. Since mud has small particles and low storage energy, it is greatly affected by air resistance and will be lower than sand when thrown high, thereby separating the mud from the sand. At this time, when passing through the water curtain, since the density of water is higher than that of air, both the mud and the sand are more obviously affected by the water curtain, so the mud and the sand will be consistent with the falling speed of the water flow. Since the height of the mud when thrown high is lower than that of the sand, the mud will first fall onto a throwing and receiving plate after contacting the water curtain, and then pass through the sieve holes on the throwing and receiving plate to achieve the separation effect. Since the sand is thrown up at a higher height, it is affected by the impact of the water and falls together with the water to hit the throwing and receiving plate, so that the mud adhered to the inside of the sand depression is separated from the sand when hit, and the mud is better prevented from adhering to the depression of the sand, so that the mud can be screened out when thrown high next time, thereby obtaining purer sand.

Description

Technical Field

[0001] The invention discloses a mud separation process and equipment thereof, belonging to the technical field of mud and sand separation. Background Art

[0002] Mud separation is a process used to separate sand and mud in mud. However, due to the uneven surface of the sand itself, the mud is easy to adhere to the depression when the sand and mud are separated. The traditional method of mud and sand separation is to directly pour the mud and sand into the screen and then separate them by flushing water, or at most with the assistance of vibration. This makes it difficult to remove the mud and sand adhering to the depression.

[0003] A new solution is now proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a mud separation process and equipment in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme, a mud separation process, comprising the following steps:

[0006] S1: the recovered mortar is placed in a sedimentation tank for sedimentation;

[0007] S2 pumping slurry for rough washing, pumping the bottom sediment out of the sedimentation tank and sending it to the transmission filter for spraying and desludging;

[0008] S3 slurry throwing and fine washing, the material that has been roughly washed in S2 is thrown up, and the material is allowed to pass through the water curtain during the throwing;

[0009] S4 sand and iron separation, the coarse sand after S3 fine washing is sent to the conveying filter, and then the iron in the coarse sand is separated by an electromagnet.

[0010] Preferably, the material is thrown high and passes through the water curtain for multiple times in S3, and the flow rate of the water curtain in the water curtain is increased successively.

[0011] Preferably, it includes:

[0012] A sedimentation tank is dug underground and has a waterproof layer inside. The sedimentation tank is used for soaking and sedimentation of materials;

[0013] The fuselage, the main body of the equipment, is installed vertically above the settling tank;

[0014] A mortar pump is installed in the sedimentation tank, and its output end is connected to the machine body;

[0015] A transmission filter screen is provided in plurality and installed in the fuselage, and the transmission filter screen is used to transmit and filter the material;

[0016] A throwing device is installed in the machine body and connected to the transmission filter screen at the front and rear. The throwing device is used to throw the material up;

[0017] A water curtain device is fixedly installed vertically above the throwing device, and is used to form a water curtain above the throwing device;

[0018] The electromagnetic roller is rotatably installed inside the machine body, and is used for electromagnetically adsorbing the material after passing through the throwing device.

[0019] Preferably, a screen is obliquely arranged in the sedimentation tank for dividing the sedimentation tank into a sand pool and a mud pool, the mortar pump is arranged in the sand pool, a mud pump is arranged in the mud pool, and the sand pool is connected to the outside.

[0020] Preferably, the mud pump is connected to a filter press, and the clean water outlet of the filter press is connected to a water curtain device.

[0021] Preferably, the throwing device includes a throwing plate for receiving materials, a reset device for supporting the throwing plate to maintain a predetermined position, a rotating motor for pushing the throwing plate to perform the throwing action and a guide groove for guiding the throwing plate, the guide groove is opened on the fuselage, the throwing plate cooperates with the guide groove for guiding, one end of the reset device is rotatably connected to the throwing plate and the other end is rotatably connected to the fuselage, the rotating motor is fixedly connected to the fuselage, and its output end is transmission-coordinated with the throwing plate.

[0022] Preferably, a pushing protrusion is provided on the rotating motor, and a guide column is provided on the throwing plate, and the pushing protrusion can abut against the guide column.

[0023] Preferably, a guide rod is slidably provided inside the guide column, a guide wheel is provided at one end of the guide rod, and the other end abuts against the inner wall of the guide column through a spring, and the guide wheel moves in the guide groove.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: in S3, after adding water to the soil, the distance between the particles of water and soil is relatively close, and the force between the particles will generate viscosity, while since the particles of sand are relatively large, it is difficult for the particles of sand to generate the force between the particles of water, so when the sand is thrown high, the energy stored in the sand itself is higher than that of the soil due to its large mass, and the sand is less affected by the air resistance due to its large mass, so it will be thrown higher, while the mud has small particles and low energy storage, and is greatly affected by the air resistance, so it will be lower than the sand when thrown high, thereby separating the mud from the sand. At this time, when passing through the water curtain, the sand is Since the density of water is higher than that of air, mud and sand are more obviously affected by the water curtain, so the mud and sand will keep the same falling speed as the water flow. Since the mud is thrown at a lower height than the sand, it will first fall to the throwing and catching board after contacting the water curtain, and then pass through the sieve holes on the throwing and catching board to achieve the separation effect. Since the sand is thrown at a higher height, it is affected by the impact of the water and falls down with the water to hit the throwing and catching board, so that the mud adhered to the inside of the sand depression is separated from the sand when it is hit, which better avoids the mud from adhering to the depression of the sand, so that the mud can be screened out when thrown high next time, thereby obtaining purer sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of a half-section structure of the present invention;

[0027] Figure 3 is a schematic diagram of the structure of the gear set;

[0028] Figure 4 It is a schematic diagram of the structure of the guide groove.

[0029] Figure numerals: 1. body; 2. conveying filter; 3. throwing plate; 4. resetting device; 5. water curtain device; 6. electromagnetic roller; 7. sand pool; 8. mud pool; 9. screen; 10. pushing protrusion; 11. guide groove; 12. guide column; 13. guide rod; 14. fin; 15. large toothless gear; 16. small toothless gear; 17. large gear; 18. small gear. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a mud separation process comprises the following steps:

[0032] S1: the recovered mortar is placed in a sedimentation tank for sedimentation;

[0033] S2 pumps out slurry for rough washing, pumps the bottom sediment out of the sedimentation tank and sends it to the transmission filter 2 for spraying and desludging;

[0034] S3 slurry throwing and fine washing, the material that has been roughly washed in S2 is thrown up, and the material is allowed to pass through the water curtain during the throwing;

[0035] S4 sand and iron separation, the coarse sand that has been finely washed in S3 is sent to the conveying filter 2, and then the iron in the coarse sand is separated by an electromagnet.

[0036] In S3, the material is thrown high and passes through the water curtain for multiple times, and the flow rate of the water curtain in the water curtain increases successively.

[0037] Through the above process, the sediment separation can be more thorough, and compared with the traditional water spray vibration sediment separation, this process can process more sediment at the same time, and does not need to spread the material flat like the water spray vibration type to avoid the mud being blocked by sand and gravel and not being carried away by the flowing water. At the same time, the setting of the water curtain can make the water output more uniform, avoiding the situation where the water output fluctuates and the sand and mud fluctuate when subjected to the impact of the water flow.

[0038] A mud separation device comprises:

[0039] A sedimentation tank is dug underground and has a waterproof layer inside. The sedimentation tank is used for soaking and sedimentation of materials;

[0040] The fuselage 1, the main body of the equipment, is installed vertically above the settling tank;

[0041] A mortar pump is installed in the sedimentation tank, and its output end is connected to the body 1;

[0042] A plurality of transmission filters 2 are provided and installed in the body 1, and the transmission filters 2 are used to transmit and filter materials;

[0043] A throwing device is installed in the machine body 1 and connected to the transmission filter 2 at the front and rear. The throwing device is used to throw the material up;

[0044] A water curtain device 5 is fixedly installed vertically above the throwing device, and the water curtain device 5 is used to form a water curtain above the throwing device;

[0045] The electromagnetic roller 6 is rotatably installed inside the machine body 1, and the electromagnetic roller 6 is used for electromagnetically adsorbing the material after passing through the throwing device.

[0046] The present invention is set up based on the above-mentioned process, and utilizes the sedimentation tank dug underground so that the material transport vehicles can directly dump the materials beside the sedimentation tank, making the material feeding more convenient. The fuselage 1 is located above the sedimentation tank, and when the material is subjected to sedimentation separation, the sediment that falls off the edge will return to the sedimentation tank, so as to avoid the waste of material falling. The material is directly pumped to the conveying filter 2 through the mortar pump, so that the conveying filter 2 performs coarse screening on the material, and at the same time, spraying is performed during the initial screening to separate most of the mud from the sand, and then the gravel containing a small amount of mud is sent to the throwing device through the conveying filter 2, and the throwing device continuously performs the throwing and receiving, so that the sediment constantly collides and rubs against each other, and at the same time, the gravity acceleration is used to further enhance the collision. The impact force can better separate the mud and sand, and because the thrown materials will contact the water curtain, the water curtain will simultaneously push the mud and sand down together. Since the mass of gravel in the air is larger, while the mass of mud itself is smaller, the air resistance in the air is greater than that of gravel. Therefore, the gravel will be thrown to a position higher than the mud in the throwing action. When it contacts the water curtain, the resistance of water is greater than that of air, so the mass difference between mud and sand is almost the same when facing the water curtain, so that the water curtain can drive the mud and sand to move almost at the same time. Because the mud is lower than the gravel in the flying height due to the influence of air resistance, the mud will fall onto the throwing device first, and then pass through the sieve holes on the throwing device to achieve mud and sand separation. Moreover, because the mud will have viscosity after adding water, it can be easily separated from the mud by the water curtain. During the high throwing operation, part of the energy obtained by the mud will be used to overcome the viscosity, so that the height of the mud thrown will be further lower than the sand and gravel, thereby allowing the mud to be better separated from the sand. At the same time, if the mud is too viscous, the water curtain will continuously pour on the throwing and receiving plate 3 during the high throwing operation, so that the water will continuously contact the mud. When the contact ratio of mud and water exceeds a certain limit, the water will block the mud particles, so that the force between the mud particles disappears, and then the viscosity disappears, and the mud follows the water flow through the sieve holes, thereby separating the mud and sand. When there is a large volume of lumpy mud due to its own viscosity, the impact force generated by throwing it high and then falling down destroys the internal force of the mud, thereby achieving the effect of separating the lumpy mud. After the mud and sand are separated, since there is still some lumpy mud inside the gravel, There is iron, so before the sand and gravel are transported out of the fuselage 1, the sand and gravel are transported to the electromagnetic roller 6 by using the conveying filter 2. After the electromagnetic roller 6 is energized, a magnetic field will be generated, thereby adsorbing the iron, and the surface of the electromagnetic roller 6 is covered with a conveyor belt. After the iron is adsorbed on the conveyor belt, as the conveyor belt moves, the iron adsorbed by the electromagnetic roller 6 from bottom to top is moved to be adsorbed from top to bottom. When the iron moves along the conveyor belt to be away from the electromagnetic roller 6, due to the magnetism of the electromagnetic roller 6, the iron is affected by the adsorption force and there is a possibility of sliding with the conveyor belt. In order to facilitate the iron to be better taken away from the electromagnetic roller 6, convex ribs are arranged on the conveyor belt, and the conveyor belt is divided into several areas by the convex ribs, so that when the transmission belt takes away the iron, the convex ribs can block the iron, so as to avoid the iron and the conveyor belt slipping and causing the iron to be unable to be transported away.

[0047] A screen 9 is obliquely arranged in the sedimentation tank for dividing the sedimentation tank into a sand pool 7 and a mud pool 8. A mortar pump is arranged in the sand pool 7, a mud pump is arranged in the mud pool 8, the sand pool 7 is connected to the outside, the mud pump is connected to a filter press, and the clean water outlet of the filter press is connected to a water curtain device 5. When the material is sent into the sedimentation tank, the mud is greatly affected by the water resistance and falls slowly. A guide fin 14 is arranged on the sedimentation, and the mud is guided to the screen 9 through the guide fin 14, and then the screen 9 is used to block the gravel in the sand pool 7, while the smaller mud particles pass through. The screen 9 enters the mud pool 8 to achieve a coarse screening effect, and the mortar pump is located at the bottom of the sand pool 7, which can make the gravel gather at the mortar pump and then be pumped to the transmission filter 2 through the mortar pump. A mud pump is set at the bottom of the mud pool 8, and the mud is sent to the filter press for filtration through the mud pump. The filter press can filter out the water in the mud and water. At this time, you only need to use the filtered water to spray the mortar on the transmission filter 2 to perform a rough washing operation on the mortar. The water itself is taken from the mud, and there is no need to invest too much new water source, thereby achieving a water-saving effect.

[0048] The throwing device includes a throwing plate 3 for receiving materials, a reset device 4 for supporting the throwing plate to remain in a predetermined position, a rotating motor for pushing the throwing plate 3 to perform the throwing action and a guide groove 11 for guiding the throwing plate 3. The guide groove 11 is opened on the fuselage 1, and the throwing plate 3 is guided and matched with the guide groove 11. One end of the reset device 4 is rotatably connected to the throwing plate 3 and the other end is rotatably connected to the fuselage 1. The rotating motor is fixedly connected to the fuselage 1, and its output end is transmission-matched with the throwing plate 3. A pushing protrusion 10 is provided on the rotating motor, and a guide column 12 is provided on the throwing plate 3. The pushing protrusion 10 can abut against the guide column 12. A guide rod 13 is slidably provided in the guide column 12. A guide wheel is provided at one end of the guide rod 13, and the other end abuts against the inner wall of the guide column 12 through a spring. The guide wheel moves in the guide groove 11.

[0049] The above-mentioned reset device 4 adopts a cylinder, through which the throwing plate 3 is suspended in the air, and then the output end of the rotating motor is used to transmit the throwing plate 3, so that the pushing protrusion 10 on the output end hits the guide column 12, and the guide column 12 is pushed by the pushing protrusion 10 after being hit. At this time, since the guide rod 13 sliding in the guide column 12 is inserted into the guide groove 11, the guide column 12 pushed by the pushing protrusion 10 can only move along the direction of the guide groove 11, and the distance from the guide groove 11 to the rotating motor partially exceeds the length of the pushing protrusion 10, so that when the pushing protrusion 10 pushes the guide column 12 to separate from the pushing protrusion 10, the cylinder compressed to make way when the guide column 12 is pushed and moved loses the external force to abut and reset, thereby pushing the throwing plate 3 to fall back quickly, and in the process of the throwing plate 3 being quickly pushed up and then quickly falling back, the mud and sand are caused to be obliquely thrown up by inertia, and as the rotating motor rotates, the throwing plate 3 repeats the above-mentioned actions continuously, and then the mud and sand are quickly separated. In order to further increase the throwing speed and allow the material to have sufficient time to fall back, a gear set is installed between the rotating motor and the pushing protrusion 10, and the gear set includes a large toothless gear 15, a small toothless gear 16, a large gear 17 and a small gear 18. The large toothless gear 15 and the small gear 18 are periodically meshed, and the small toothless gear 16 and the large gear 17 are periodically meshed and connected to each other. The large toothless gear 15 and the small toothless gear 16 are fixedly connected to the pushing protrusion 10, and the large gear 17 and the small gear 18 are fixedly connected to the output end of the motor. The small toothless gear 16 is pushed by the large gear 17, so that the pushing protrusion 10 can quickly push the throwing plate 3. When the cylinder pushes the throwing plate 3 to reset, the large toothless gear 15 is pushed by the small gear 18, thereby extending the time for the protrusion 10 to separate from the guide column 12, so that the material has enough time to fall.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A slurry separation process, characterized in that: The following steps are involved: S1: the recovered mortar is placed in a sedimentation tank for sedimentation; S2 pumping slurry for rough washing, pumping the bottom sediment out of the sedimentation tank and sending it to the transmission filter for spraying and desludging; S3 slurry throwing and fine washing, the material that has been roughly washed in S2 is thrown up, and the material is allowed to pass through the water curtain during the throwing; S4 sand and iron separation, the coarse sand after S3 fine washing is sent to the conveying filter, and then the iron in the coarse sand is separated by an electromagnet.

2. A slurry separation process according to claim 1, characterized in that: In S3, the material is thrown high and passes through the water curtain for multiple times, and the flow rate of the water curtain in the water curtain increases successively.

3. A mud separation device, used for carrying out a mud separation process as claimed in claim 1 or 2, characterized in that: include: A sedimentation tank is dug underground and has a waterproof layer inside. The sedimentation tank is used for soaking and sedimentation of materials; The fuselage, the main body of the equipment, is installed vertically above the settling tank; A mortar pump is installed in the sedimentation tank, and its output end is connected to the machine body; A transmission filter screen is provided in plurality and installed in the fuselage, and the transmission filter screen is used to transmit and filter the material; A throwing device is installed in the machine body and connected to the transmission filter screen at the front and rear. The throwing device is used to throw the material up; A water curtain device is fixedly installed vertically above the throwing device, and is used to form a water curtain above the throwing device; The electromagnetic roller is rotatably installed inside the machine body, and is used for electromagnetically adsorbing the material after passing through the throwing device.

4. A mud separation device according to claim 3, characterized in that: A screen is obliquely arranged in the sedimentation tank for dividing the sedimentation tank into a sand pool and a mud pool, the mortar pump is arranged in the sand pool, a mud pump is arranged in the mud pool, and the sand pool is communicated with the outside.

5. A mud separation device according to claim 4, characterized in that: The mud pump is connected to a filter press, and the clean water outlet of the filter press is connected to a water curtain device.

6. A mud separation device according to claim 3, characterized in that: The throwing device includes a throwing plate for receiving materials, a reset device for supporting the throwing plate to maintain a predetermined position, a rotating motor for pushing the throwing plate to perform the throwing action and a guide groove for guiding the throwing plate, the guide groove is provided on the fuselage, the throwing plate cooperates with the guide groove for guiding, one end of the reset device is rotatably connected to the throwing plate and the other end is rotatably connected to the fuselage, the rotating motor is fixedly connected to the fuselage, and its output end is transmission-coordinated with the throwing plate.

7. A mud separation device according to claim 6, characterized in that: The rotating motor is provided with a pushing protrusion, and the throwing plate is provided with a guide column, and the pushing protrusion can abut against the guide column.

8. A mud separation device according to claim 7, characterized in that: A guide rod is slidably arranged in the guide column, a guide wheel is arranged at one end of the guide rod, and the other end abuts against the inner wall of the guide column through a spring, and the guide wheel moves in the guide groove.

Images