Gravity jigging separation and leaching combined production system and production process for reducing ash and chlorine

Abstract

The present application relates to the technical fields of coal separation and purification treatment, and proposes a gravity jigging separation and leaching chlorine reduction combined production system and production process, which comprises a machine body, the machine body has a liquid flow channel, the liquid flow channel has a liquid flow inlet and a liquid flow outlet; a jigging bin is arranged on the machine body, the jigging bin has a discharging cavity, the discharging cavity has a material inlet and a material outlet, the liquid flow channel leads to the discharging cavity through the material inlet, and the material outlet leads to the outside; the jigging bin is a plurality of; a blocking piece is arranged on the machine body and located above the material inlet of the terminal jigging bin; the jigging bin has an impact cavity, the impact cavity has a side inlet, a side outlet and a bottom opening part, the side inlet and the side outlet are respectively directed to the liquid flow inlet and the liquid flow outlet, and the bottom opening part is directed to the material inlet. Through the above technical scheme, the problem that the coal particles processed inside are easy to adhere to the mineral fine particles when the jigging equipment in the prior art works, thereby causing waste and leading to the reduction of the subsequent chlorine removal leaching efficiency is solved.

Description

Technical Field

[0001] This invention relates to the field of coal sorting and purification technology, specifically to a combined production system and process for gravity jigging for ash reduction and leaching for chlorination reduction. Background Technology

[0002] In the field of coal sorting and purification, the combined gravity jigging separation and leaching dechlorination production system and process play a crucial role. As a commonly used gravity separation device, the jig uses the up-and-down pulsation of water flow to stratify materials according to density within the jigging tank, thus achieving the separation of materials with different densities. Jigging equipment typically consists of several jigging tanks, with the coal particle size gradually decreasing in the direction from feed to discharge. However, this process presents several significant challenges. The closer the jigging tank is to the final waste liquid outlet, the smaller the coal particles it processes. Because coal particles have a relatively large surface area and high surface energy, they are more prone to adhering to fine mineral particles. Furthermore, compared to large coal pieces, the collision force and frequency between coal particles are much weaker during jigging. This results in less effective sorting and desorption of coal particles compared to large coal pieces, affecting the final sorting quality and dechlorination effect.

[0003] In addition, coal that has undergone jigging requires leaching dechlorination. During leaching, specific chemical agents and process conditions are used to further remove residual chlorine from the coal to achieve higher quality requirements. However, the aforementioned problems during jigging pose greater challenges to the subsequent leaching dechlorination process. For example, fine mineral particles adhering to the surface of coal particles may hinder sufficient contact between the leaching agent and the coal, affecting the dechlorination effect; changes in the internal structure of the coal due to poor jigging may also make it difficult for the chemical reactions during leaching to proceed fully.

[0004] These problems not only reduce the quality of coal but also increase the difficulty and cost of subsequent processing. Therefore, optimizing the structure and process of jigging equipment to improve the separation effect and dechlorination efficiency of coal particles during jigging has become a key issue that urgently needs to be addressed in the current gravity jigging separation and leaching dechlorination combined production system and process. Summary of the Invention

[0005] This invention proposes a combined gravity jigging separation and leaching dechlorination production system and process, which solves the problem in related technologies where coal particles processed inside the jigging equipment easily adhere to fine mineral particles, resulting in waste and reduced subsequent dechlorination leaching efficiency.

[0006] The technical solution of the present invention is as follows:

[0007] The combined gravity jigging separation and leaching dechlorination production system includes:

[0008] The body has a liquid flow channel, which has a liquid flow inlet and a liquid flow outlet;

[0009] A jigging chamber is provided on the machine body. The jigging chamber has a discharge chamber with a material inlet and a material outlet. The liquid flow channel leads to the discharge chamber through the material inlet and the material outlet leads to the outside.

[0010] There are several jigging chambers, and the several jigging chambers are arranged along the direction of the liquid flow channel. The jigging chamber near the liquid flow outlet is defined as the end jigging chamber.

[0011] A baffle is provided on the machine body, located above the material inlet of the end jigging chamber. The baffle has an impact chamber inside, which has a side feed port, a side discharge port and a bottom opening. The side feed port and the side discharge port face the liquid inlet and the liquid outlet respectively, and the bottom opening faces the material inlet.

[0012] As a further technical solution, it also includes:

[0013] An impact liquid flow pipe is installed on the jigging chamber, with one end extending into the interior of the jigging chamber. The end of the impact liquid flow pipe extending into the interior of the jigging chamber has an impact liquid flow outlet, which faces the material inlet.

[0014] As a further technical solution, the impact chamber also has a top opening and further includes:

[0015] The first filter plate is disposed on the material inlet;

[0016] The second filter plate is disposed on the top opening.

[0017] As a further technical solution, it also includes:

[0018] A guide plate is disposed on the machine body, located above the top opening. The guide plate is inclined, and has a feed guide surface on the side near the liquid inlet and a discharge guide surface on the side near the liquid outlet. The top opening faces the discharge guide surface.

[0019] As a further technical solution, there are several guide plates arranged along the direction of the liquid flow channel, and the angle between the guide plate near the liquid flow outlet and the direction of the liquid flow channel decreases.

[0020] As a further technical solution, it also includes:

[0021] An overflow plate is disposed on the guide plate closest to the liquid outlet. The overflow plate has an overflow groove. The overflow groove has an overflow inlet on the side near the liquid inlet. The overflow groove has an overflow baffle and an overflow outlet on the side near the liquid outlet. The overflow outlet leads to the liquid outlet.

[0022] As a further technical solution, it also includes:

[0023] A collection tank is provided on the machine body, located on the side of the overflow baffle near the liquid outlet, and the overflow trough leads to the collection tank.

[0024] As a further technical solution, the overflow baffle is located on one side of the overflow outlet, and further includes:

[0025] The diverting block is disposed on the side of the overflow outlet near the liquid inlet. The diverting block has a first guide bevel, which is used to guide the liquid flow entering the overflow tank from the overflow inlet to the overflow baffle.

[0026] As a further technical solution, it also includes:

[0027] A merging ramp is disposed on the overflow baffle and located within the overflow trough. The merging ramp has a second guide ramp and a guide ramp surface. The second guide ramp 1101 is used to guide the liquid flow passing through the first guide ramp to the overflow outlet, and the guide ramp surface is used to guide the liquid flow in the overflow trough to the overflow baffle.

[0028] The combined gravity jigging separation and leaching dechlorination process utilizes any one of the gravity jigging separation and leaching dechlorination combined production systems described above for jigging separation treatment.

[0029] The working principle and beneficial effects of this invention are as follows:

[0030] In this invention, during jig operation, liquid enters the liquid channel from the liquid inlet at a certain speed and pressure. Coal material enters the discharge chamber of the jig bin from the material inlet. Under the pulsating action of the liquid flow, coal particles stratify vertically according to their density. Denser particles sink, and less dense particles float. In the final jig bin, since the coal particle size is already very small, the baffle does not act as a barrier, but rather allows coal separated at the bottom that meets the target minimum particle size to enter the impact chamber. Under the combined action of the lateral impact from the side inlet and side outlet, and the upward impact from the liquid outlet, smaller coal particles collide sufficiently, causing mineral particles to detach from the coal surface, facilitating subsequent leaching and dechlorination treatment. Even smaller impurities flow out from above through the liquid outlet. Through the cooperation of the final jig bin and the baffle, coal with the target minimum particle size can be accurately separated, improving the precision and accuracy of the sorting process. Sufficient liquid flow impact and coal particle collision effectively detach mineral particles from the coal surface, creating favorable conditions for subsequent leaching and dechlorination treatment, thus improving the dechlorination effect. More refined sorting and effective demineralization significantly improve coal quality, meeting higher quality requirements. Attached Figure Description

[0031] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0032] Figure 1 This is a schematic diagram of the structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the internal structure of the present invention from another perspective;

[0035] Figure 4 For this Figure 3 A partially enlarged structural diagram of section A in the middle;

[0036] Figure 5 This is a schematic diagram of the stop structure in this invention;

[0037] Figure 6 This is a schematic diagram of the overflow plate structure in this invention.

[0038] In the diagram: Body-1, Liquid Flow Channel-101, Liquid Inlet-102, Liquid Outlet-103, Jig Chamber-2, Discharge Chamber-201, Material Inlet-202, Material Outlet-203, Impact Chamber-204, Side Feed Inlet-205, Side Discharge Outlet-206, Bottom Opening-207, Top Opening-208, Baffle-3, Impact Liquid Flow Pipe-4, Impact Liquid Flow Outlet-401, First Filter Plate-5, second filter plate-6, guide plate-7, feed guide surface-701, discharge guide surface-702, overflow plate-8, overflow trough-801, overflow feed inlet-802, overflow baffle-803, overflow discharge outlet-804, collection trough-9, diverting block-10, first guide inclined side-1001, confluence inclined block-11, second guide inclined side-1101, guide inclined surface-1102. Detailed Implementation

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0040] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Reference Figures 1-6An embodiment of the present invention proposes a combined gravity jigging separation and leaching dechlorination production system, comprising a machine body 1, the machine body 1 having a liquid flow channel 101 having a liquid flow inlet 102 and a liquid flow outlet 103; jigging chambers 2 are disposed on the machine body 1, the jigging chambers 2 having a discharge chamber 201 having a material inlet 202 and a material outlet 203, the liquid flow channel 101 connecting to the discharge chamber 201 through the material inlet 202, and the material outlet 203 connecting to the outside; there are several jigging chambers 2, if... The dry jigging chambers 2 are arranged along the direction of the liquid flow channel 101. The jigging chamber 2 near the liquid flow outlet 103 is defined as the end jigging chamber 2. The baffle 3 is set on the machine body 1 and is located above the material inlet 202 of the end jigging chamber 2. The baffle 3 has an impact chamber 204. The impact chamber 204 has a side feed port 205, a side discharge port 206 and a bottom opening 207. The side feed port 205 and the side discharge port 206 face the liquid flow inlet 102 and the liquid flow outlet 103 respectively, and the bottom opening 207 faces the material inlet 202.

[0044] In this embodiment, when the jig is working, the liquid flows into the liquid channel 101 from the liquid inlet 102 at a certain speed and pressure. Coal material enters the discharge chamber 201 of the jig chamber 2 from the material inlet 202. Under the up-and-down pulsation of the liquid flow, the coal particles stratify vertically according to their density. Denser particles sink, and less dense particles float. In the final jig chamber 2, since the coal particle size is already very small, the baffle 3 does not act as a barrier, but rather allows the coal separated at the bottom that reaches the target minimum particle size to enter the impact chamber 204. Under the combined action of the lateral impact generated by the liquid flow from the side inlet 205 and side outlet 206, and the upward impact generated from the liquid outlet 103, smaller coal particles can collide sufficiently, causing mineral particles to detach from the coal surface, which is beneficial for subsequent leaching and dechlorination treatment. Even smaller impurities will flow out from above through the liquid outlet 103. The coordinated action of the end-stage jigging bin 2 and the baffle 3 enables precise separation of coal with the smallest target particle size, improving the accuracy and precision of the sorting process. Sufficient liquid flow impact and coal particle collision effectively detach mineral particles from the coal surface, creating favorable conditions for subsequent leaching and dechlorination treatment, thus enhancing the dechlorination effect. This finer sorting and effective demineralization significantly improves coal quality, meeting higher quality requirements.

[0045] Furthermore, it also includes an impact liquid flow pipe 4, which is installed on the jig chamber 2 and extends into the interior of the jig chamber 2 at one end. The end of the impact liquid flow pipe 4 that extends into the interior of the jig chamber 2 has an impact liquid flow outlet 401, which faces the material inlet 202.

[0046] In this embodiment, during system operation, the impact liquid flow pipe 4 delivers liquid flow into the jigging bin 2. The liquid flow is ejected at high speed from the impact liquid flow outlet 401, directly towards the material inlet 202. This direct impact liquid flow towards the material inlet 202 provides a strong initial impact force to the coal entering the jigging bin 2, enhancing the separation effect and enabling more effective separation of coal and impurities. This helps accelerate the stratification speed of coal within the jigging bin 2, shortening the separation time and improving production efficiency. It also ensures a more uniform distribution of material within the jigging bin 2, avoiding localized accumulation or uneven separation, further improving the separation quality. The impact intensity can be flexibly controlled by adjusting the flow rate and pressure of the impact liquid flow pipe 4 to adapt to the separation needs of coal materials with different properties and particle sizes.

[0047] Furthermore, the impact chamber 204 also has a top opening 208 and a first filter plate 5, which is disposed on the material inlet 202; a second filter plate 6 is disposed on the top opening 208.

[0048] In this embodiment, when the system is running, the first filter plate 5 plays its role as the coal material passes through the material inlet 202. Based on the working principle of the jig, the first filter plate 5 mainly controls the particle size of the material entering the jig chamber 2 and initially filters out larger impurities, providing suitable material conditions for the jig process. During the jig process, the coal churns up and down in the impact chamber 204, and the mineral particles impacted flow out of the impact chamber 204 through the second filter plate 6, and are discharged from the liquid outlet 103 under the drive of the liquid flow. The first filter plate 5 ensures that the material entering the jig chamber 2 meets the jig requirements, thereby ensuring the normal operation of the jig and a good sorting effect. The particle size screening of the material makes the coal particle size distribution in the jig chamber 2 more uniform, improving the sorting accuracy. The second filter plate 6 promptly discharges the impacted mineral particles, preventing them from being mixed back into the coal, improving the separation efficiency of minerals and coal. It reduces the accumulation of mineral particles in the impact chamber 204, maintaining a good working environment in the impact chamber 204. Through the action of the filter plates, the entire jig and sorting process is made more stable and reliable, reducing the occurrence of failures.

[0049] Furthermore, it also includes a guide plate 7, which is disposed on the body 1 and located above the top opening 208. The guide plate 7 is inclined and has a feed guide surface 701 on the side near the liquid inlet 102 and a discharge guide surface 702 on the side near the liquid outlet 103. The top opening 208 faces the discharge guide surface 702.

[0050] In this embodiment, the guide plate 7 is inclined, with the side near the liquid inlet 102 serving as the feed guide surface 701 and the side near the liquid outlet 103 serving as the discharge guide surface 702. The top opening 208 faces the discharge guide surface 702. Below the baffle 3 is the impact chamber 204, where the coal from the final sorting enters the impact chamber 204, while smaller particles flow over the guide plate 7 from above the baffle 3. During system operation, the liquid carries coal particles through the guide plate 7. Since the main component of coal powder is carbon, which has the lowest density among water-insoluble particles, it gradually stratifies as it flows through the feed guide surface 701, with the upper layer being coal powder particles. The discharge guide surface 702 receives coal powder with similar particle size to the mineral particles that have passed through the second filter plate 6 simultaneously, and guides and stratifies these particles. This effectively separates the coal powder particles, facilitating subsequent processing and utilization, and improving the comprehensive utilization rate of coal resources. Simultaneous flow guidance and stratification of pulverized coal with particle sizes similar to those of minerals helps improve the effectiveness and efficiency of mineral separation. Precise stratification reduces unnecessary reprocessing, lowers energy consumption, and increases production efficiency. Ensuring stable flow and stratification of liquids and particles reduces system fluctuations and guarantees stable operation of the production system.

[0051] Furthermore, there are several guide plates 7 arranged along the direction of the liquid flow channel 101, and the angle between the guide plate 7 near the liquid flow outlet 103 and the direction of the liquid flow channel 101 decreases.

[0052] In this embodiment, during system operation, the liquid flow carries coal particles into the system. First, the guide plate 7 near the liquid inlet 102 initially guides and separates the liquid and particles. As the liquid flows forward, the guide plate 7 in the middle further adjusts the flow direction and speed of the liquid and particles, causing initial stratification of particles of different sizes and densities. When the liquid approaches the liquid outlet 103, the guide plates 7, with their gradually decreasing angle, provide more precise guidance. As the liquid passes through these guide plates 7, the speed and direction of the flow undergo more subtle changes, making the stratification between particles clearer and more precise. Particles of different sizes and densities, originally mixed together, gradually form distinct stratification under the action of these guide plates 7, with a finer, lower-density coal powder on top and larger, higher-density mineral particles and other impurities on the bottom. Through the synergistic effect of multiple guide plates 7, the stratification of the liquid and particles is gradually refined, improving the accuracy and quality of the separation. More precise stratification helps to more effectively separate different components, improving the purification effect and quality of the coal. The rational arrangement and angle variation of the guide vanes 7 reduce turbulence and vortices in the liquid flow, decrease energy loss, and improve system operating efficiency. Stable and progressively refined liquid and particle flow contribute to the stable operation of the entire production system and reduce the likelihood of malfunctions.

[0053] Furthermore, it also includes an overflow plate 8, which is disposed on the guide plate 7 closest to the liquid outlet 103. The overflow plate 8 has an overflow groove 801. The overflow groove 801 has an overflow inlet 802 on the side near the liquid inlet 102. The overflow groove 801 has an overflow baffle 803 and an overflow outlet 804 on the side near the liquid outlet 103. The overflow outlet 804 leads to the liquid outlet 103.

[0054] In this embodiment, during system operation, the liquid flow and particles reach this location after being processed by the guide plate 7. Among the liquid flow and particles entering the overflow tank 801, the less dense coal powder crosses the overflow baffle 803 and enters the subsequent dedicated collection location. Other, denser particles cannot cross the overflow baffle 803 and flow out from the overflow outlet 804, merging into the main liquid flow direction and finally flowing out from the liquid outlet 103. Through the special design of the overflow plate 8, precise separation of coal powder from other denser particles is achieved, improving the purity of the coal powder. This allows coal powder and other particles to flow to different locations, facilitating subsequent separate processing and utilization, and improving the overall efficiency of resource utilization. The parameters of the overflow plate 8 can be adjusted according to different production requirements and raw material characteristics to achieve the best separation effect.

[0055] Furthermore, it also includes a collection tank 9, which is disposed on the body 1 and located on the side of the overflow baffle 803 near the liquid outlet 103, with the overflow trough 801 leading to the collection tank 9.

[0056] In this embodiment, during system operation, the coal powder passing over the overflow baffle 803 from the overflow trough 801 flows into the collection tank 9 for collection under the action of gravity and liquid flow. The collection tank 9 effectively collects the separated coal powder, facilitating subsequent processing and utilization.

[0057] Furthermore, the overflow baffle 803 is located on one side of the overflow outlet 804 and also includes a diverter block 10. The diverter block 10 is disposed on the side of the overflow outlet 804 near the liquid inlet 102. The diverter block 10 has a first guide bevel 1001, which is used to guide the liquid flow entering the overflow tank 801 from the overflow inlet 802 to the overflow baffle 803.

[0058] In this embodiment, during system operation, the liquid and particulate mixture entering the overflow tank 801 from the overflow inlet 802 flows at a certain speed and direction. When the liquid flow encounters the first guide slope 1001 of the diversion block 10, the flow direction of the liquid flow changes. The first guide slope 1001 effectively guides and divides the liquid and particulate mixture, causing most of the liquid flow to concentrate and flow towards the overflow baffle 803 along the direction of the slope. During this process, the speed and impact force of the liquid flow also change accordingly, causing the distribution state of coal powder and other particles in the liquid flow to be adjusted. The first guide slope 1001 of the diversion block 10 can accurately guide the liquid flow towards the overflow baffle 803, so that the coal powder and other particles in the liquid flow are subjected to more concentrated and targeted forces, thereby greatly enhancing the separation effect of coal powder and other particles and improving the purity and accuracy of the separation. The liquid flows rapidly and concentratedly towards the separation position along the first guide slope 1001, reducing the disordered flow and lingering time of the liquid in the overflow tank 801, accelerating the separation speed, enabling the processing of more material per unit time, significantly improving the overall system efficiency, and increasing production capacity. The unique design and precise angle of the first guide slope 1001 can achieve highly precise guidance of the liquid flow based on its initial state and particle characteristics. Regardless of changes in the liquid's velocity, flow rate, and particle composition, it ensures that the liquid flows along a predetermined path and direction, thereby guaranteeing the accuracy and repeatability of the separation process.

[0059] Furthermore, it also includes a confluence ramp 11, which is disposed on the overflow baffle 803 and located in the overflow trough 801. The confluence ramp 11 has a second guide ramp 1101 and a guide ramp 1102. The second guide ramp 1101 is used to guide the liquid flow passing through the first guide ramp 1001 to the overflow outlet 804, and the guide ramp 1102 is used to guide the liquid flow in the overflow trough 801 to the overflow baffle 803.

[0060] In this embodiment, during system operation, the liquid and particulate mixture entering the overflow tank 801 from the overflow inlet 802 first contacts the diverting block 10. The first guide slope 1001 of the diverting block 10 guides the liquid and particulate mixture to the overflow baffle 803. When the liquid reaches the overflow baffle 803, the confluence block 11 comes into play. The liquid flowing through the second guide slope 1101 of the confluence block 11 is guided to the overflow outlet 804, while the liquid above the overflow baffle 803 also flows towards the overflow baffle 803 under the action of the guide slope 1102. The diverting block 10 and the confluence block 11 cooperate with each other to make the flow path of the liquid and particulate mixture in the overflow tank 801 more reasonable and orderly. The liquid undergoes two precise guidances, which greatly enhances the separation effect of coal powder and other particles, and significantly improves the separation accuracy and purity. The synergistic effect of the two accelerates the flow and separation speed of the liquid, reducing the time spent by the liquid flowing through the overflow tank 801. This efficient cooperation enables the separation process to be completed in a shorter time, significantly improving the overall system efficiency and processing capacity. The initial guidance of the diverting block 10 and the readjustment of the confluence ramp 11 jointly optimize the liquid flow distribution within the overflow tank 801, making the energy distribution of the liquid flow more uniform, effectively eliminating local turbulence and vortices, and providing a reliable flow pattern guarantee for a stable and efficient separation process.

[0061] This embodiment also proposes a combined production process of gravity jigging for ash removal and leaching for chlorination removal, using any one of the combined gravity jigging for ash removal and leaching for chlorination removal systems for jigging treatment.

[0062] In this embodiment, firstly, the combined gravity jigging separation and leaching dechlorination production system is started. The liquid stream containing coal material to be treated enters the liquid stream channel 101 through the liquid stream inlet 102. As the coal material passes through multiple jigging bins 2, it stratifies vertically according to its density, with denser materials sinking and less dense materials floating. At the end jigging bin 2, the baffles 3 and the impact chamber 204 ensure that small-diameter coal particles collide fully, causing mineral particles to detach from the coal surface. The impact liquid stream pipe 4 delivers liquid into the jigging bin 2 to enhance the impact effect. The first filter plate 5 and the second filter plate 6 perform filtration at the material inlet 202 and the top opening 208, respectively. The guide plates 7 guide and stratify the liquid stream and coal particles. Multiple guide plates 7 are arranged along the direction of the liquid stream channel 101, and the included angle of the guide plates 7 near the liquid stream outlet 103 gradually decreases, achieving progressively finer stratification. The overflow plate 8 and overflow trough 801 further separate pulverized coal and other particles. The less dense pulverized coal passes over the overflow baffle 803 and enters the collection trough 9, while the other denser particles flow out from the overflow outlet 804. The diverting block 10 and the confluence ramp 11 work together in the overflow trough 801 to optimize the separation effect.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A combined production system of gravity jigging separation ash reduction and leaching chlorine reduction, characterized in that, The utility model relates to a kind of jigger, including: Machine body (1), the machine body (1) has liquid flow passage (101), the liquid flow passage (101) has liquid flow inlet (102) and liquid flow outlet (103); Jigger bin (2), the jigger bin (2) is arranged on the machine body (1), the jigger bin (2) has discharge cavity (201), the discharge cavity (201) has material inlet (202) and material outlet (203), the liquid flow passage (101) is led to the discharge cavity (201) by the material inlet (202), the material outlet (203) is open to the outside world; The jigger bin (2) is several, several jigger bin (2) is arranged along the direction of the liquid flow passage (101), and the jigger bin (2) close to the liquid flow outlet (103) is defined as terminal jigger bin (2); Baffle piece (3), the baffle piece (3) is arranged on the machine body (1), is located above the material inlet (202) of the terminal jigger bin (2), the baffle piece (3) inside has impact cavity (204), the impact cavity (204) has side inlet (205), side outlet (206) and bottom opening part (207), the side inlet (205) and the side outlet (206) are respectively directed to the liquid flow inlet (102) and the liquid flow outlet (103), the bottom opening part (207) is directed to the material inlet (202); The baffle piece (3) makes the coal that separates out to target separation minimum particle size enter the impact cavity (204), and coal is up and down in the impact cavity (204) in jigger process.

2. The gravity jigging and leaching combined production system according to claim 1, characterized in that, Further including: Impact liquid flow pipe (4), the impact liquid flow pipe (4) is arranged on the jigger bin (2), and one end is inserted into the jigger bin (2) inside, the impact liquid flow pipe (4) one end inserted into the jigger bin (2) inside has impact liquid flow outlet (401), the impact liquid flow outlet (401) is directed to the material inlet (202).

3. The gravity jigging and leaching combined production system according to claim 1, characterized in that, The impact cavity (204) also has top opening part (208), further including: First filter plate (5), the first filter plate (5) is arranged on the material inlet (202); Second filter plate (6), the second filter plate (6) is arranged on the top opening part (208).

4. The gravity jigging and leaching combined production system according to claim 3, characterized in that, Further including: Guide plate (7), the guide plate (7) is arranged on the machine body (1), is located above the top opening part (208), the guide plate (7) is arranged obliquely, the guide plate (7) is close to the liquid flow inlet (102) one side and has inlet guide surface (701), close to the liquid flow outlet (103) one side and has outlet guide surface (702), the top opening part (208) is directed to the outlet guide surface (702).

5. The gravity jigging and leaching combined production system according to claim 4, characterized in that, The guide plate (7) is several, is arranged along the direction of the liquid flow passage (101), and the guide plate (7) close to the liquid flow outlet (103) and the included angle of the direction of the liquid flow passage (101) decreases.

6. The gravity jigging and leaching combined production system according to claim 4, characterized in that, Further including: An overflow plate (8) is arranged on the deflector plate (7) closest to the liquid flow outlet (103), the overflow plate (8) has an overflow groove (801), the overflow groove (801) has an overflow inlet (802) on the side close to the liquid flow inlet (102), the overflow groove (801) has an overflow stop (803) and an overflow outlet (804) on the side close to the liquid flow outlet (103), and the overflow outlet (804) is connected to the liquid flow outlet (103).

7. The gravity jigging and leaching combined production system according to claim 6, characterized in that, Further comprising: A collection groove (9) is arranged on the machine body (1) on the side of the overflow stop (803) close to the liquid flow outlet (103), and the overflow groove (801) is connected to the collection groove (9).

8. The gravity jigging and leaching combined production system according to claim 6, characterized in that, The overflow stop (803) is located on the side of the overflow outlet (804), and further comprising: A flow dividing block (10) is arranged on the side of the overflow outlet (804) close to the liquid flow inlet (102), and the flow dividing block (10) has a first guide bevel (1001) for guiding the liquid flow entering the overflow groove (801) from the overflow inlet (802) to the overflow stop (803).

9. The gravity jigging and leaching combined production system according to claim 8, characterized in that, Further comprising: A flow combining bevel block (11) is arranged on the overflow stop (803) and located in the overflow groove (801), and the flow combining bevel block (11) has a second guide bevel (1101) for guiding the liquid flow flowing through the first guide bevel (1001) to the overflow outlet (804) and a guide slope (1102) for guiding the liquid flow in the overflow groove (801) to the overflow stop (803).

10. A combined production process of gravity jigging separation ash reduction and leaching chlorine reduction, wherein the combined production system of gravity jigging separation ash reduction and leaching chlorine reduction according to any one of claims 1-9 is used for jigging separation treatment.

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