Loess separating device

Abstract

The loess separation device comprises a separation chamber, a settling chamber and a delivery pump, a sieve plate which is horizontally placed and provided with holes is arranged in the separation chamber, the upper portion of the separation chamber is connected with the interior of the settling chamber through a separation chamber overflow pipe, and the separation chamber is connected with an inlet of the delivery pump through the separation chamber overflow pipe. The delivery pump outlet is connected with the bottom of the separation chamber through a delivery pump outlet pipeline. Loess is separated through water washing, and the problems that dust is raised in traditional screening, organic matter and soluble salt are difficult to separate and the like are solved.

Description

Technical Field

[0001] The present application relates to the field of separation technology, and in particular to a loess separation device. Background Art

[0002] The particle size composition of loess is sediment. The composition of loess is uniform, characterized by a high content of silt particles (0.05-0.005mm), of which the content of coarse silt particles (0.05-0.01mm) is more than 50%, and clay particles (0.25mm particles). In short, loess is mainly silt, and contains a certain proportion of fine sand, very fine sand and clay particles. It has been successfully used in architectural coatings.

[0003] Loess with different particle sizes has different properties and uses. Traditional separation using separation sieves produces large dust and pollution, and it is difficult to separate organic matter and soluble salts. In order to solve the above problems, the utility model proposes a new technical solution with low pollution and solves the separation of organic matter and soluble salts. Utility Model Content

[0004] In order to avoid dust pollution caused by traditional screening, achieve the separation of loess of different particles, avoid the accumulation of wall particles affecting the separation effect during the separation process, and separate organic matter and soluble salts in loess, the present application provides a loess separation device.

[0005] The loess separation device provided in this application adopts the following technical solution:

[0006] A loess separation device comprises a separation chamber, a sedimentation chamber and a delivery pump. A horizontally placed sieve plate with holes is provided inside the separation chamber. The upper part of the separation chamber is connected to the interior of the sedimentation chamber through a separation chamber overflow pipe. The separation chamber is connected to the delivery pump inlet through the separation chamber overflow pipe. The delivery pump outlet is connected to the bottom of the separation chamber through a delivery pump outlet pipe.

[0007] By adopting the above technical scheme, loess is driven by water to move loess particles upward. Since loess with different particle sizes is subjected to different drag forces of water, loess solid particles with different particle sizes can be separated. At the same time, in order to reduce the waste of water, a water circulation device is set up. After the water carrying solid particles settles, the upper layer of clear water re-enters the delivery pump, thereby realizing the reuse of water.

[0008] Optionally, a regulating valve and a flow meter are provided on the outlet pipeline of the delivery pump.

[0009] By adopting the above technical solution, the flow rate of water in the separation chamber can be regulated, so that the drag force of water on the loess particles can be changed, so that loess of different particle sizes can be brought out, and a set of equipment can be used to separate different loess particles.

[0010] Optionally, a flushing avoidance device is provided in the separation chamber, and the wall flushing device includes a flushing pipe connected to the outlet pipe of the delivery pump and a flushing pipe connected to the flushing pipe and provided at the inner wall of the separation chamber.

[0011] By adopting the above technical solution and setting a flushing pipe on the wall of the separation chamber, the problem of solid particles gathering on the wall during use is solved. In actual use, the particles gathered on the wall are unstable and may suddenly collapse into the separation chamber, thereby affecting the stability of the particles in the separation chamber and making the separation effect worse.

[0012] Optionally, a flushing regulating valve and a flushing flow meter are provided on the flushing pipeline.

[0013] By adopting the above technical solution, regulating valves and meters are arranged in the washing pipeline to facilitate flow regulation and monitoring in actual operation.

[0014] Optionally, the sieve plate is provided with circular holes arranged in a triangular shape.

[0015] Optionally, the sieve plate is provided with rectangular holes arranged in parallel.

[0016] Optionally, the separation chamber is cylindrical.

[0017] Optionally, the sedimentation chamber is in the shape of a cuboid.

[0018] Optionally, the loess separation device has multiple sedimentation chambers, and a switching valve is provided on the connecting pipeline.

[0019] Optionally, the loess separation device is provided with a circulation device, which includes a circulation outlet pipe connected to the upper wall of the separation chamber, a circulation inlet pipe connected to the lower wall of the separation chamber, and a pump is provided between the circulation outlet pipe and the circulation inlet pipe.

[0020] Optionally, the circulating loess separation device is characterized in that the pump is a centrifugal pump.

[0021] Optionally, the circulating loess separation device is characterized in that a centrifugal pump valve is provided on the circulating inlet pipe at the pump outlet.

[0022] Optionally, the circulating loess separation device is characterized in that: the pump (708) is a jet pump, and the jet pump inlet and the delivery pump outlet pipeline are connected through the jet pump inlet pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a loess separation device according to an embodiment of the present application.

[0024] Figure 2This is a schematic diagram of a loess separation device with a flushing device in the present application.

[0025] Figure 3 This is a schematic diagram of a loess separation device with a circulation device in the present application.

[0026] Figure 4 This is a schematic diagram of a loess separation device with a self-priming circulation device in the present application.

[0027] Figure 5 It is a schematic diagram of the sieve plate of the loess separation device of the present application.

[0028] Figure 6 This is another schematic diagram of a sieve plate of the loess separation device of the present application.

[0029] Figure markings: 1, separation chamber, 2, sieve plate, 3, sedimentation chamber, 4, delivery pump, 5, wall flushing device, 101, separation chamber overflow pipe, 301, sedimentation chamber overflow pipe, 401, pump outlet pipe, 402, pump regulating valve, 403, pump flow meter, 501, flushing pipe outlet, 502, flushing regulating valve, 503, flushing flow meter, 701, circulation outlet pipe, 702, jet pump valve, 703, jet pump inlet pipe, 704, jet pump inlet valve, 705 jet pump inlet flowmeter, 706, centrifugal pump valve, 707, circulation inlet pipe, 708, pump, 801 discharge valve, 803 second-stage valve, 802 sedimentation chamber valve. DETAILED DESCRIPTION

[0030] The technical solution is further described below in conjunction with specific embodiments and drawings. Example 1

[0031] like Figure 1 A loess separation device is shown, comprising a separation chamber 1, a sedimentation chamber 3, and a delivery pump 4. A horizontally placed and perforated sieve plate 2 is provided inside the separation chamber 1. The upper part of the separation chamber 1 is connected to the interior of the sedimentation chamber 3 through a separation chamber overflow pipe 101. The sedimentation chamber 3 is connected to the inlet of the delivery pump 4 through the sedimentation chamber overflow pipe 301. The outlet of the delivery pump 4 is connected to the bottom of the separation chamber 1 through a delivery pump outlet pipe 401.

[0032] When in use, loess is placed in the separation chamber 1 and the sedimentation chamber 3 is injected with clean water, the loess is placed in the separation chamber 1, the pump 4 is turned on, the sedimentation chamber valve 802 is closed, the discharge valve 801 is opened, and the water is discharged from the discharge valve with organic matter and salt; the sedimentation chamber valve 802 is opened, the discharge valve 801 is closed, the water enters the pump from the sedimentation chamber 3 through the sedimentation chamber overflow pipe 301, and enters the bottom of the separation chamber 1 through the pump outlet pipe 401, the water passes through the sieve plate 2 and flows upward evenly, and the water passes through the sieve plate 2 and drives the loess particles to flow upward. Due to the different gravity of loess with different particle sizes, the lighter loess is driven to flow upward first, and the loess particles flowing with the rising water flow enter the sedimentation chamber 3 through the separation chamber overflow pipe 101, and the loess particles in the sedimentation chamber 3 gradually sink to realize the separation of water and loess particles, and the separated water enters the pump through the sedimentation chamber overflow pipe 301, thereby realizing the recycling of water.

[0033] In order to further realize the separation of different loess particles by one device, a pump regulating valve 402 and a pump flow meter 403 are set on the pump outlet pipe 401. By adjusting the pump regulating valve 402, the water flow in the separation chamber can be adjusted. The increase in flow rate increases the drag of water on the loess particles, which can bring larger loess particles into the sedimentation chamber 3. The pump flow meter 403 is set on the pump outlet pipe 401 to realize real-time monitoring of the water flow, which is convenient for adjustment.

[0034] Furthermore, during use, the fluid has a tendency to flow along the wall, and the flow is prone to be unstable where the sieve plate 2 and the wall of the separation chamber 1 contact, causing loess particles to gather there. During actual use, the particles gathered on the wall are unstable and suddenly collapse into the separation chamber 1, thereby affecting the stability of the particles in the separation chamber 1 and making the separation effect worse. In order to solve the above problem, a wall flushing device 5 is provided in the separation chamber 1, and the flushing avoidance device 5 includes a flushing pipe 504 connected to the delivery pump outlet pipe 401, and a flushing pipe outlet 501 connected to the flushing pipe 504 and provided on the inner wall of the separation chamber 1. When in use, a portion of water enters the flushing pipe outlet 501 on the inner wall of the separation chamber 1 through the flushing pipe 504, and flows out, and the particles gathered on the wall are flushed in real time to avoid the aggregation of particles.

[0035] In order to further adjust the flow rate of water in the flushing device 5, a flushing regulating valve 502 and a flushing flow meter 503 are provided on the flushing pipeline 504 to adjust and monitor the flow of the flushing pipeline.

[0036] The separation chamber 1 and the sedimentation chamber 3 can adopt a variety of shapes, the most common of which are square containers, cylindrical containers, etc. Taking into account the properties of loess and the size of the equipment, the separation chamber 1 of this device adopts a cylindrical structure and the sedimentation chamber 3 adopts a rectangular structure.

[0037] At the same time, the opening of the sieve plate 2 will also affect the distribution of loess particles. This technical solution proposes two sieve plate forms, such as Figure 5 and Figure 6 As shown, one is circular holes arranged in a triangle, and the other is rectangular holes arranged in parallel. Example 2

[0038] In use, large particles are impacted by small particles and carried to the top of the separation chamber. To solve this problem, the diameter of the separation chamber is usually increased, which significantly increases the cost of the equipment. In order to reduce the large particles carried to the top of the separation chamber, the large particles return to the bottom of the separation chamber, and reduce the large particles carried out of the separation chamber into the sedimentation chamber. The utility model proposes a new technical solution, the specific facts are as follows, refer to Figure 3 , a circulation device 7 is provided, the circulation device 7 comprises a circulation outlet pipe 701 connected to the upper wall of the separation chamber 1, a circulation inlet pipe 707 connected to the lower wall of the separation chamber 1, a pump 708 is provided between the circulation outlet pipe 701 and the circulation inlet pipe 707, when working, the liquid in the separation chamber enters the centrifugal pump 708 through the circulation outlet pipe 701, is discharged from the centrifugal pump 708 and enters the bottom of the separation chamber through the circulation inlet pipe 707, and the liquid with large particles is brought back to the bottom of the separation chamber 1, thereby reducing the large particles being brought out and improving the separation purity. In order to facilitate the adjustment of the flow rate, a centrifugal pump valve 706 is provided on the circulation inlet pipe 707. Example 3

[0039] Since there are still a lot of particles in the liquid in the separation chamber, the use of a centrifugal pump will cause wear on the impeller, seriously affecting the working stability of the centrifugal pump, increasing noise and reducing its life. In order to improve the above problems, the utility model proposes to use a jet pump to solve the above technical problems. A jet pump, also known as a jet pump and an ejector, is a pump that uses the jet effect of a high-pressure working fluid to transport fluid. Figure 4 During operation, the high-pressure fluid output by the delivery pump 4 on the basis of the first embodiment passes through the pump outlet pipe 401 and the jet pump inlet pipe 703, and enters the inlet of the jet pump 708. As the flow diameter decreases and the pressure drops, the liquid in the separation chamber 1 is sucked into the jet pump 708 through the circulation outlet pipe 701. After mixing, the diameter of the flow channel increases and the pressure increases, and the liquid is discharged from the jet pump 7 through the circulation inlet pipe 707 and enters the bottom of the separation chamber 1. In this way, the liquid with large particles is brought back to the bottom of the separation chamber 1, thereby reducing the large particles being brought out and improving the separation purity. In order to facilitate the adjustment of the flow rate, a jet pump inlet valve 704 is provided on the jet pump inlet pipe 703, and a jet pump valve (702) is provided on the circulation outlet pipe (701). Example 4

[0040] To achieve separation of different particle sizes, multiple settling chambers are set up, such as Figure 1-4As shown, a second-stage sedimentation chamber 9 is provided. When in use, after the sedimentation of the first-stage sedimentation chamber 3 is completed, the second-stage valve 803 is opened and the sedimentation chamber valve 802 is closed, and the pump regulating valve 402 is adjusted to allow larger loess particles to enter the second sedimentation chamber 9, and the loess separation work of different particle sizes has been completed.

Claims

1. A loess separation device, characterized in that: The invention comprises a separation chamber (1), a sedimentation chamber (3), and a delivery pump (4); a horizontally placed sieve plate (2) with holes is provided inside the separation chamber (1); the upper part of the separation chamber (1) is connected to the interior of the sedimentation chamber (3) via a separation chamber overflow pipe (101); the sedimentation chamber (3) is connected to the inlet of the delivery pump (4) via the sedimentation chamber overflow pipe (301); and the outlet of the delivery pump (4) is connected to the bottom of the separation chamber (1) via a delivery pump outlet pipe (401).

2. The loess separation device according to claim 1 is characterized in that: The delivery pump outlet pipeline (401) is provided with a pump regulating valve (402) and a pump flow meter (403).

3. The loess separation device according to claim 1 is characterized in that: A wall flushing device (5) is provided in the separation chamber (1), and the wall flushing device comprises a flushing pipe (504) connected to the delivery pump outlet pipe (401), and a flushing pipe outlet (501) connected to the flushing pipe (504) and provided on the inner wall surface of the separation chamber (1).

4. The loess separation device according to claim 3 is characterized in that: The flushing pipeline (504) is provided with a flushing regulating valve (502) and a flushing flow meter (503).

5. The loess separation device according to claim 1 is characterized in that: The sieve plate (2) is provided with circular holes or rectangular holes.

6. The loess separation device according to claim 1 is characterized in that: It has a plurality of settling chambers (3), and a switching valve is arranged on the connecting pipeline.

7. The loess separation device according to claim 1 is characterized in that: A circulation device (7) is provided, the circulation device (7) comprising a circulation outlet pipe (701) connected to the upper wall surface of the separation chamber (1), a circulation inlet pipe (707) connected to the lower wall surface of the separation chamber (1), and a pump (708) is provided between the circulation outlet pipe (701) and the circulation inlet pipe (707).

8. The loess separation device according to claim 1 is characterized in that: The pump (708) is a centrifugal pump.

9. The loess separation device according to claim 2, characterized in that: The outlet of the pump (708) is located on the circulation inlet pipeline (707) and is provided with a centrifugal pump valve (706).

10. The loess separation device according to claim 1, characterized in that: The pump (708) is a jet pump, and the jet pump inlet is connected to the delivery pump outlet pipeline (401) via the jet pump inlet pipeline (703).

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