A tail gas purification device for extracting pyrite from cyanide slag

Abstract

The present invention relates to the technical field of tail gas purification and separation. The present invention provides a tail gas purification device for extracting pyrite from cyanide slag, comprising: a tail gas collection unit, a pretreatment unit, a separation unit, an absorption unit and a control unit. The separation unit comprises a tower body, a spray mechanism and a filler loading and unloading mechanism. The spray mechanism is connected to the tower body and is used to spray a treatment solution into the tower body. The purification device provided by the present invention has an automatic loading and unloading function of the filler by providing a filler loading and unloading mechanism. By respectively providing a spreading component and a stirring component on the stacking plate, the automatic spreading and discharging functions of the filler can be respectively completed. It replaces the manual replacement operation, reduces the workload of the staff, and makes the filler replacement operation more convenient. Moreover, the entire replacement process is carried out inside the tower body, which can also reduce the harm of harmful substances inside the tower body to the human body.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas purification and separation, and more specifically, to a tail gas purification device for extracting pyrite from cyanide slag. Background Art

[0002] A large amount of tail gas will be generated in the process of extracting pyrite from cyanide slag. These tail gas contain harmful substances such as free cyanide and complex cyanide, sulfur dioxide and heavy metals. Therefore, in order to avoid these harmful substances from polluting the environment, the exhaust gas needs to be purified to remove the harmful substances.

[0003] At present, the existing exhaust gas purification device generally includes an exhaust gas collection unit, a pretreatment unit, a separation unit, an absorption unit and a control unit. Among them, for the absorption unit, it is mainly used to filter and absorb harmful substances in the gas, and is generally a spray tower device. For example, in the prior art, the patent publication number is CN113230836B, which discloses an environmentally friendly anhydrous phosphate exhaust gas absorption tower, including: a purification mechanism, a transmission mechanism, a water supply mechanism and a regulating mechanism. The purification mechanism includes a tower body for absorbing exhaust gas, an air inlet connected to the tower body for exhaust gas to enter, an exhaust port for exhaust gas after purification to be discharged, a dehumidification plate for filtering moisture in the exhaust gas after purification, a filling plate for spreading purification fillers, and a water tank for storing spray water.

[0004] In the above-mentioned absorption tower, the filler for purification will be spread on the filler plate. After being used for a period of time, the filler will be replaced to ensure its purification effect. There are generally two commonly used filler forms. One is a molded one-piece structure. When replacing it, you only need to take out the filler layer and put a new filler layer. The other is composed of a variety of block and granular compositions stacked layer by layer. The filler used for the tail gas of pyrite extracted from cyanide slag is the second form. When replacing the second form of filler, it needs to be manually shoveled out from the filler plate and then laid and flattened layer by layer. The operation process is relatively cumbersome and the workload is large. In addition, there are harmful substances in the tower, and it is not easy for the staff to stay in this environment for a long time, which makes it difficult to replace the filler. Therefore, it is necessary to provide a purification device that can automatically replace the filler. Summary of the invention

[0005] The purpose of the present invention is to provide a tail gas purification device for extracting pyrite from cyanide slag to solve the above-mentioned technical problems.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0007] The present invention provides a tail gas purification device for extracting pyrite from cyanide slag, comprising: a tail gas collection unit, a pretreatment unit, a separation unit, an absorption unit and a control unit, wherein the separation unit comprises a tower body, a spray mechanism and a filler loading and unloading mechanism, wherein the spray mechanism is connected to the tower body and is used to spray a treatment solution into the tower body, wherein the filler loading and unloading mechanism comprises a placing component, a feeding component and a collecting component, wherein the placing component is arranged inside the tower body and serves as a stacking position for fillers, wherein the feeding component is connected to the tower body and is used to transport fillers to the top surface of the placing component, wherein the collecting component is used to centrally collect fillers discharged from an outlet at the bottom of the tower body;

[0008] The placing component includes a stacking plate, a paving assembly and a stirring assembly. The stacking plate is fixed to the inner side wall of the tower body. The top surface of the stacking plate is provided with a discharge port. The paving assembly is arranged on the stacking plate. The paving assembly has the functions of rising and rotating, and is used to evenly spread the filler on the top surface of the stacking plate. The stirring assembly is retracted and arranged in the discharge port, and is used to block the discharge port. The stirring assembly is in transmission connection with the paving assembly.

[0009] When replacing the filler, the spreading assembly is moved upward, driving the stirring assembly to first move upward and away from the discharge port, and then rotated to a vertical state with the top surface of the stacking plate, so that the stirring assembly is switched from a blocking posture to a stirring posture, and the spreading assembly is rotated to drive the stirring assembly to stir the filler, so that the filler falls downward from the discharge port. After all the filler is discharged, the spreading assembly is moved downward, driving the stirring assembly to shrink into the discharge port again to seal it.

[0010] As a further optimization scheme of the present invention, the paving assembly includes a paving plate, a driving motor and a supporting sleeve. The paving plate is arranged on the top surface of the stacking plate, and the driving motor is fixedly installed on the bottom surface of the stacking plate. The rotating end of the driving motor is fixedly installed with a driving shaft, and the outer side of the driving shaft is slidably sleeved with a connecting sleeve. A movable groove is provided at one end of the bottom of the paving plate close to the connecting sleeve, and the top of the connecting sleeve is slidably connected to the movable groove. An electric push rod is installed inside the driving shaft, and the outer side of the telescopic end of the electric push rod is fixedly connected to the inner side wall of the connecting sleeve, and a supporting spring is fixedly installed between the top surface of the telescopic end of the electric push rod and the top wall of the movable groove. The support sleeve is movably sleeved on the outer side of the connecting sleeve, and its outer side is fixed to the stacking plate.

[0011] As a further optimization scheme of the present invention, the stirring assembly includes a stirring plate, a connecting ring body and a rotating drive member. The stirring plate is arranged in the discharge port, and its top surface is flush with the top surface of the stacking plate. The connecting ring body is slidably sleeved on the upper end of the connecting sleeve. A fixed plate is fixedly installed at one end of the stirring plate close to the connecting ring body. One end of the fixed plate is rotatably connected to the connecting ring body. A vertical groove along the height direction of the connecting sleeve is provided on the outer side of the connecting sleeve. The rotating drive member is respectively connected to the fixed plate and the connecting ring body. When the connecting sleeve drives the connecting ring body to move upward, the rotating drive member can be engaged with the vertical groove and synchronously drive the stirring plate to rotate.

[0012] As a further optimization scheme of the present invention, the rotating driving member includes a movable clamping shaft, a torsion spring, a contact block and a rotating member, the movable clamping shaft is slidably arranged in a connecting ring body, and the other end of the movable clamping shaft slides and extends into the fixed plate; the torsion spring is sleeved on the rotating end of the fixed plate, and its two ends are respectively fixed to the connecting ring body and the fixed plate, and a connecting spring is sleeved on the outer side of the movable clamping shaft, and the two ends of the connecting spring are respectively fixedly connected to the clamping end of the movable clamping shaft and the inside of the connecting ring body, and the top surface of the stacking plate is provided with an inclined groove adapted to the contact block, the bottom of the contact block is clamped in the inclined groove, and its top end is fixedly connected to the movable clamping shaft, and the top end of the contact block is slidably connected to the connecting ring body, and when the movable clamping shaft is slidably engaged with the vertical groove, the rotating member synchronously drives the fixed plate to rotate.

[0013] As a further optimization scheme of the present invention, the rotating part includes a spiral groove and a drive cam shaft, the drive cam shaft is fixedly installed on one end of the movable clamping shaft close to the fixed plate, the spiral groove is arranged inside the fixed plate, the drive cam shaft includes a straight section and a spiral section, and the drive cam shaft is slidably connected to the straight section.

[0014] As a further optimization solution of the present invention, the collecting component includes a control valve and a collecting box, the control valve is arranged at an outlet position at the bottom of the tower body, and the collecting box is arranged at the bottom of the tower body.

[0015] As a further optimization scheme of the present invention, the feeding component includes a feeding pump, which is located on the outside of the tower body, and its output end is connected to a feeding pipe. The top of the feeding pipe is located above the stacking plate and is connected to the interior of the tower body. The input end of the feeding pump is connected to an external filler storage box through a pipeline.

[0016] As a further optimization scheme of the present invention, the spray mechanism includes a circulating water tank, a circulating pump and a spray head. The circulating water tank is arranged on the outside of the tower body, and its outside is connected to the bottom end of the tower body through a connecting pipe. The spray head is located directly above the stacking plate, and the input end of the circulating pump is connected to the inside of the circulating water tank through a connecting pipe, and its output end is connected to the spray head through a delivery pipe.

[0017] As a further optimization solution of the present invention, the number of the placing components is set to two, and the two placing components are distributed up and down in the tower body.

[0018] As a further optimization scheme of the present invention, the paving assembly also includes a combing piece, which includes a comb plate, a transmission gear, a matching tooth plate, a transmission tooth plate and an extrusion ring body. The comb plate is slidably installed in the paving board, and the comb teeth at its bottom penetrate the bottom of the paving board. The transmission gear is rotatably installed in the movable groove. The bottom end of the matching tooth plate is fixedly connected to the top surface of the telescopic end of the electric push rod, and its top end is meshed with one side of the transmission gear. One end of the transmission tooth plate is fixedly connected to the comb plate, and the other end thereof slides from the top surface of the paving board into the movable groove and meshes with the other side of the transmission gear. The extrusion ring body is located above the comb plate, and its outer ring surface is fixedly connected to the inner wall. When it moves to a preset maximum height on the paving board, its top contacts the bottom of the extrusion ring body.

[0019] The beneficial effects of the present invention are as follows: the purification device provided by the present invention has the function of automatic loading and unloading of fillers by arranging a filler loading and unloading mechanism, and can respectively complete the automatic spreading and discharging functions of the fillers by respectively arranging a spreading component and a stirring component on the stacking plate, which replaces the manual replacement operation, reduces the workload of the staff, and makes the filler replacement operation more convenient, and the entire replacement process is carried out inside the tower body, which can also reduce the harm to the human body caused by harmful substances inside the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention provides a structural block diagram of a tail gas purification device for extracting pyrite from cyanide slag.

[0021] Figure 2 It is a structural schematic diagram of a separation unit in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0022] Figure 3 The present invention provides a schematic diagram of the structure of a separation unit in a tail gas purification device for extracting pyrite from cyanide slag.

[0023] Figure 4 The present invention provides a schematic structural diagram of the components placed in a tail gas purification device for extracting pyrite from cyanide slag.

[0024] Figure 5 It is a schematic structural diagram between a spreading component and a stirring component in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0025] Figure 6It is a schematic diagram of the structure inside the paving assembly in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0026] Figure 7 The present invention provides a schematic structural diagram of a connecting sleeve, a stirring assembly and a local position of a stacking plate in a tail gas purification device for extracting pyrite from cyanide slag.

[0027] Figure 8 It is a cross-sectional view of a local position of a connecting ring body in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0028] Fig. 9 The present invention provides a schematic diagram of the structure of the interior of a fixed plate in a tail gas purification device for extracting pyrite from cyanide slag.

[0029] Fig.10 It is a structural schematic diagram of a second embodiment of a separation unit in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0030] Fig.11 It is a schematic diagram of the internal structure of a local position between a combing piece and a paving plate in a tail gas purification device for extracting pyrite from cyanide slag provided by the present invention.

[0031] Fig.12 The present invention provides a schematic diagram of the structure between a combing member, an electric push rod and a driving shaft in a tail gas purification device for extracting pyrite from cyanide slag.

[0032] In the figure: 1, tower body; 2, spray mechanism; 21, circulating water tank; 22, circulating pump; 23, spray head; 24, connecting pipe; 3, filling loading and unloading mechanism; 31, placing components; 311, stacking plate; 312, paving assembly; 3121, paving plate; 3122, driving motor; 3123, supporting sleeve; 3124, driving shaft; 3125, connecting sleeve; 3126, movable groove; 3127, electric push rod; 3128, supporting spring; 3129, comb plate; 31210, transmission gear; 31211, matching tooth plate; 3121 2. Transmission tooth plate; 31213. Extrusion ring body; 313. Stirring assembly; 3131. Stirring plate; 3132. Connecting ring body; 3133. Fixed plate; 3134. Vertical groove; 3135. Movable clamping shaft; 3136. Torsion spring; 3137. Contact block; 3138. Connecting spring; 3139. Inclined groove; 31310. Spiral groove; 31311. Driving cam; 314. Discharge port; 32. Feeding component; 321. Feeding pump; 322. Feeding pipe; 33. Collecting component; 331. Control valve; 332. Collecting box. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0034] Embodiment 1

[0035] Please refer to Figure 1 , a tail gas purification device for extracting pyrite from cyaniding slag, comprising: a tail gas collection unit, a pretreatment unit, a separation unit, an absorption unit and a control unit, wherein the tail gas collection unit is responsible for collecting the tail gas generated during the cyanidation process, the pretreatment unit performs preliminary purification on the tail gas to remove large particles and some harmful gases, the separation unit uses physical or chemical methods to separate valuable gases in the tail gas, the absorption unit is used to further process the tail gas and remove remaining harmful substances, and the control unit is responsible for the operation monitoring and parameter adjustment of the entire device; since the above-mentioned units all belong to conventional technical means in this field, their specific structures and working principles are not disclosed here.

[0036] Please refer to Figures 2 to 4 In order to solve the problem of difficulty in replacing fillers in an absorption tower and inconvenient operation, the present invention improves the existing separation unit, specifically: the separation unit includes a tower body 1, a spraying mechanism 2 and a filler loading and unloading mechanism 3, the spraying mechanism 2 is connected to the tower body 1, and is used to spray the treatment solution into the tower body 1, the filler loading and unloading mechanism 3 includes a feeding component 32, a collecting component 33 and two placing components 31, the placing component 31 is arranged inside the tower body 1, and serves as a stacking position for the filler, the feeding component 32 is connected to the tower body 1, and is used to transport the filler to the top surface of the placing component 31, and the collecting component 33 is used to collect the filler discharged from the bottom outlet of the tower body 1.

[0037] Among them, the spray mechanism 2 includes a circulating water tank 21, a circulating pump 22 and a spray head 23. The circulating water tank 21 is arranged on the outside of the tower body 1, and its outside is connected to the bottom end of the tower body 1 through a connecting pipe 24. The spray head 23 is located directly above the stacking plate 311. The input end of the circulating pump 22 is connected to the inside of the circulating water tank 21 through the connecting pipe 24, and its output end is connected to the spray head 23 through a delivery pipe. When spraying, the circulating pump 22 is started to extract the treatment liquid in the circulating water tank 21 and deliver it to the spray head 23, and then the spray head 23 evenly sprays it into the tower body 1, thereby purifying the exhaust gas in the rising process.

[0038] Specifically, two placement components 31 are distributed up and down in the tower body 1. The placement component 31 includes a stacking plate 311, a spreading component 312 and a stirring component 313. The stacking plate 311 is fixed to the inner wall of the tower body 1. The top surface of the stacking plate 311 is provided with a discharge port 314. The spreading component 312 is arranged on the stacking plate 311. The spreading component 312 has the functions of rising and rotating, and is used to evenly spread the filler on the top surface of the stacking plate 311; the stirring component 313 is retracted and arranged in the discharge port 314, and is used to block the discharge port 314. The stirring component 313 is matched with the spreading component 312 in a transmission connection.

[0039] The process of replacing the packing in the above separation unit is as follows:

[0040] Step 1: first close the spray mechanism 2, and return the treated liquid at the bottom of the tower body 1 to the spray mechanism 2, then control the collecting component 33 to open the discharge port 314 at the bottom of the tower body 1, and then control the paving component 312 to move upward, so as to drive the stirring component 313 to move upward and separate from the discharge port 314. After the stirring component 313 is separated from the discharge port 314, part of the filler can fall directly from the discharge port 314, and the filler at the top will fall directly on the stacking plate 311 below, and then be discharged to the bottom of the tower body 1 through the discharge port 314 of the stacking plate 311 below, and then directly enter the collecting component 33 from the discharge port 314;

[0041] Step 2: By continuing to move the paving assembly 312 upward, the stirring assembly 313 can be driven to rotate to a state perpendicular to the top surface of the stacking plate 311. After the paving assembly 312 rises to the preset maximum height, it stops moving upward. At this time, the stirring assembly 313 switches from the blocking posture to the stirring posture. After that, by controlling the rotation of the paving assembly 312, the stirring assembly 313 can be driven to rotate together. The stirring assembly 313 is inside the filler, and the paving assembly 312 is on the top surface of the filler. By rotating the two together, the filler is stirred, and the filler can be continuously dropped downward from the discharge port 314.

[0042] Step 3: After all the fillers on the upper and lower stacking plates 311 are discharged, the paving assembly 312 is controlled to move downward so as to move the paving assembly 312 downward close to the top surface of the stacking plate 311, and the stirring assembly 313 is driven to move downward and perform a flipping action synchronously, so that the stirring assembly 313 is finally retracted into the discharge port 314 again to block the discharge port 314;

[0043] Step 4: By controlling the feeding component 32, the external filler is transported to the top surface of the stacking plate 311, so that the filler is accumulated on the top surface of the stacking plate 311. At this time, by controlling the spreading component 312 to rotate horizontally with the center of the stacking plate 311, the accumulated filler is gradually spread on the top surface of the stacking plate 311, and finally the filler forms a filler layer on the top surface of the stacking plate 311. Then, the next filler is continued to be transported by the feeding component 32. After the transportation is completed, the spreading component 312 is moved up to a preset height and rotated again to evenly spread the next filler to form a second filler layer. Repeating this operation can complete the paving operation of multiple filler layers.

[0044] Please refer to Figures 4 to 6 In order to realize the function of automatically spreading the filler stacked on the stacking plate 311 layer by layer, the present invention specifically designs a paving assembly 312, specifically: the paving assembly 312 includes a paving plate 3121, a driving motor 3122 and a supporting sleeve 3123, the paving plate 3121 is arranged on the top surface of the stacking plate 311, the driving motor 3122 is fixedly installed on the bottom surface of the stacking plate 311, the driving motor 3122 is fixedly installed on the bottom of the stacking plate 311, the driving shaft 3124 is fixedly installed on the rotating end of the driving motor 3122, and the outer side of the driving shaft 3124 is slidingly sleeved with a connecting sleeve 3125, and a movable groove 3126 is provided at one end of the bottom of the paving plate 3121 close to the connecting sleeve 3125, and the top of the connecting sleeve 3125 slides with the movable groove 3126 Dynamic connection, an electric push rod 3127 is installed inside the driving shaft 3124, the outer side of the telescopic end of the electric push rod 3127 is fixedly connected to the inner wall of the connecting sleeve 3125, and a support spring 3128 is fixedly installed between the top surface of the telescopic end of the electric push rod 3127 and the inner top wall of the movable groove 3126, the support sleeve 3123 is movably sleeved on the outer side of the connecting sleeve 3125, and its outer side is fixed to the stacking plate 311, a vertically arranged arc groove body is provided on the outer side of the driving shaft 3124, and an arc rib matched with the arc groove body is provided on the inner wall of the connecting sleeve 3125, so that the connecting sleeve 3125 can slide up and down on the outer side of the driving shaft 3124, and can also rotate with the driving shaft 3124.

[0045] When the above-mentioned paving assembly 312 is in use, that is, when it is necessary to spread the filler stacked on the top surface of the stacking plate 311, the driving motor 3122 is rotated, so that the driving shaft 3124 can drive the connecting sleeve 3125 to rotate together, and the paving plate 3121 rotates with the connecting sleeve 3125. When the paving plate 3121 rotates and contacts the filler pile, it can be spread out. As the paving plate 3121 continues to rotate, the filler can eventually be evenly spread on the top surface of the stacking plate 311, and the number of rotations of the paving plate 3121 can be selected according to actual conditions. The more rotations, the smoother the filler. When paving the next layer of filler, the electric push rod 3127 is first extended to drive the connecting sleeve 3125 and the paving plate 3121 to move up together. After the paving plate 3121 moves up to a preset height, the electric push rod 3127 stops extending. Long, at this time, start adding the next filler on the top surface of the spread filler, and after the addition is completed, control the paving board 3121 to rotate again to spread the next filler evenly, and the automatic paving operation of the filler is completed, which replaces manual operation. The rotation of the paving board 3121 can make the filler more evenly spread, and the paving thickness of the paving board 3121 can be changed by driving the paving board 3121 to move upward, which not only enables it to perform multi-layer uniform paving operations, but also can be freely adjusted according to the actual paving thickness requirements; in addition, when the paving board 3121 rotates for paving, if it is blocked by the filler, it is difficult to continue to rotate. At this time, the paving board 3121 is squeezed and moved upward, so that it can smoothly pass through the blocked filler, which is conducive to avoiding the problem of difficulty in rotating the paving board 3121.

[0046] Please refer to Figure 4 , Figures 7 to 9In order to realize the automatic discharge of the filler, the present invention specifically sets up a stirring assembly 313, specifically: the stirring assembly 313 includes a stirring plate 3131, a connecting ring body 3132 and a rotating driving member, the stirring plate 3131 is arranged in the discharge port 314, and its top surface is flush with the top surface of the stacking plate 311, the connecting ring body 3132 is slidably sleeved on the upper end of the connecting sleeve 3125, the stirring plate 3131 is fixedly installed with a fixing plate 3133 at one end close to the connecting ring body 3132, one end of the fixing plate 3133 is rotatably connected to the connecting ring body 3132, the outer ring surface of the connecting sleeve 3125 is provided with an annular groove body, and one side of the annular groove body is provided with a groove along its height. The connecting ring body 3132 is slidably fitted with the side wall of the annular groove body. When the bottom wall of the annular groove body moves upward and contacts the connecting ring body 3132, the connecting ring body 3132 can be driven to move upward together. When the stirring plate 3131 is retracted in the discharge port 314, the connecting sleeve 3125 rotates, and the connecting ring body 3132 will not be driven to rotate together. The rotating driving member is respectively connected to the fixed plate 3133 and the connecting ring body 3132. When the connecting sleeve 3125 drives the connecting ring body 3132 to move upward, the rotating driving member can be engaged with the vertical groove 3134 and synchronously drive the stirring plate 3131 to rotate. The rotating driving member includes a movable clamping shaft 31 35, torsion spring 3136, contact block 3137 and rotating member, the movable clamping shaft 3135 is slidably arranged in the connecting ring body 3132, and the other end thereof slides and extends into the fixed plate 3133; the torsion spring 3136 is sleeved on the rotating end of the fixed plate 3133, and its two ends are respectively fixed to the connecting ring body 3132 and the fixed plate 3133, and the outer side of the movable clamping shaft 3135 is sleeved with a connecting spring 3138, and the two ends of the connecting spring 3138 are respectively fixedly connected to the clamping end of the movable clamping shaft 3135 and the inside of the connecting ring body 3132, and the top surface of the stacking plate 311 is provided with an inclined groove 3139 adapted to the contact block 3137, and the contact block 313 The bottom of 7 is clamped in the inclined groove 3139, and the top of it is fixedly connected to the movable clamping shaft 3135, and the top of the contact block 3137 is slidably connected to the connecting ring body 3132. When the movable clamping shaft 3135 is slidably clamped with the vertical groove 3134, the rotating member synchronously drives the fixed plate 3133 to rotate; the rotating member includes a spiral groove 31310 and a driving cam 31311, and the driving cam 31311 is fixedly installed at one end of the movable clamping shaft 3135 close to the fixed plate 3133, the spiral groove 31310 is arranged inside the fixed plate 3133, the driving cam 31311 includes a straight section and a spiral section, and the driving cam 31311 is slidably connected to the straight section.

[0047] The use process of the above-mentioned stirring assembly 313 is as follows: when replacing the filler, the paving plate 3121 is at a preset maximum height position, and the bottom of the connecting ring body 3132 is in contact with the lower end of the connecting sleeve 3125, and the electric push rod 3127 is extended to drive the connecting sleeve 3125 to move upward, so that the top end extends into the movable groove 3126, and the supporting spring 3128 is also compressed by the electric push rod 3127, and the connecting ring body 3132 moves upward with the connecting sleeve 3125, which can drive the contact block 3137, the fixing plate 3133 and the stirring assembly 3133 to move upward. The movable plate 3131 moves upward together, so that its bottom end is gradually separated from the inclined groove 3139, and the squeezing effect of the inclined groove 3139 on the contact block 3137 gradually changes. Under the elastic force of the movable clamping shaft 3135 connected to the spring 3138, it begins to slide toward the vertical groove 3134, and the contact block 3137 moves synchronously with the movable clamping shaft 3135. At the same time, the driving cam 31311 begins to slide in the straight section of the spiral groove 31310. When the bottom of the stirring plate 3131 is completely separated from the discharge port 314, the driving cam 3131 1 just enters the spiral section of the spiral groove 31310. At this time, the bottom end of the contact block 3137 has not yet completely separated from the inclined groove 3139. As the connecting ring body 3132 continues to move upward, the movable clamping shaft 3135 can gradually approach the vertical groove 3134. At the same time, under the driving action of the driving cam 31311, the fixing plate 3133 and the stirring plate 3131 can be driven to rotate together, and the torsion spring 3136 is released at the same time. When the contact block 3137 is completely separated from the inclined groove 3139, the clamping end of the movable clamping shaft 3135 is just in contact with the vertical groove. 3134 is engaged, and the fixed plate 3133 is flipped to a vertical state with the top surface of the stacking plate 311. After that, the stirring plate 3131 can be driven to rotate by driving the motor 3122, thereby stirring the filler so that it can move to the discharge port 314 and finally be discharged from the discharge port 314. In this way, the automatic discharge operation of the filler is realized, which replaces the manual shoveling of the filler. The stirring plate 3131 is rotated in contact with the top surface of the stacking plate 311 to ensure that most of the filler is pushed into the discharge port 314.

[0048] In addition, the stirring component 313 provided in the present invention has two usage states. When it is retracted in the discharge port 314, it can be used to block the discharge port 314 to prevent the filler from falling from the discharge port 314. When it is unfolded, it can be used as a stirring structure to push the filler into the discharge port 314. By being used in conjunction with the paving component 312, it can synchronously and adaptively change its state according to the change of the usage state of the paving component 312, without the need to set up an additional driving source to drive its activity. At the same time, it will not affect the normal use of the paving component 312.

[0049] Please refer to Figure 3In order to collect the discharged fillers in a centralized manner, the present invention specifically sets a collecting component 33, specifically: the collecting component 33 includes a control valve 331 and a collecting box 332, the control valve 331 can be an automatically opened butterfly valve, the control valve 331 is set at the outlet position at the bottom of the tower body 1, and the collecting box 332 is set at the bottom of the tower body 1. When in use, the control valve 331 is opened by the control unit, so that the outlet at the bottom of the tower body 1 is opened, so that the fillers can directly fall into the collecting box 332.

[0050] Please refer to Figure 3 In order to realize the function of automatically conveying fillers to the top surface of the stacking plate 311, the present invention specifically arranges a feeding component 32, specifically: the feeding component 32 includes a feeding pump 321, the feeding pump 321 is located on the outside of the tower body 1, and its output end is connected with a feeding pipe 322, the top of the feeding pipe 322 is located above the stacking plate 311 and is connected to the interior of the tower body 1, and the input end of the feeding pump 321 is connected to the external filler storage box through a pipeline. After all the fillers on the stacking plate 311 are discharged, the feeding pump 321 is started to first draw the first layer of fillers from the external filler storage box, and the filler tube passes through the feeding pipe 322 and is finally stacked on the top surface of the stacking plate 311.

[0051] Embodiment 2

[0052] Please refer to Figures 10 to 12 As a further optimization method of the above scheme, in order to improve the paving effect of the paving component 312, so that the filler can be spread evenly and at the same time a certain gap is left in the filler, the present invention also provides a combing piece, specifically: the paving component 312 also includes a combing piece, the combing piece includes a comb plate 3129, a transmission gear 31210, a matching tooth plate 31211, a transmission tooth plate 31212 and an extrusion ring 31213, the comb plate 3129 is slidably installed in the paving plate 3121, and the comb teeth at the bottom thereof penetrate the bottom of the paving plate 3121, and the transmission gear 31210 is rotatably installed in the movable groove 31 26, the bottom end of the matching tooth plate 31211 is fixedly connected to the top surface of the telescopic end of the electric push rod 3127, and its top end is meshed with one side of the transmission gear 31210. One end of the transmission tooth plate 31212 is fixedly connected to the comb plate 3129, and the other end thereof is slidably extended from the top surface of the paving plate 3121 to the movable groove 3126, and is meshed with the other side of the transmission gear 31210. The extrusion ring body 31213 is located above the comb plate 3129, and its outer ring surface is fixedly connected to the inner wall. When the paving plate 3121 moves to a preset maximum height, its top contacts the bottom of the extrusion ring body 31213.

[0053] The use process of the above-mentioned combing component is as follows: when the paving assembly 312 is paving the filler, the comb plate 3129 rotates along with the paving plate 3121, and the comb teeth evenly distributed at the bottom of the comb plate 3129 contact the filler, so that the filler can be evenly dispersed and some gaps can be reserved between the fillers to facilitate better passage of the exhaust gas.

[0054] If, when replacing the filler, the spreading plate 3121 is already at the preset maximum height, its top has contacted with the bottom of the extrusion ring 31213, and the electric push rod 3127 extends upward, which will not drive the spreading plate 3121 to move upward, and the telescopic end of the electric push rod 3127 begins to extend upward into the movable groove 3126, and at the same time squeezes the support spring 3128, and cooperates with the tooth plate 31211 to follow the electric push rod 3127 to move upward, and drives the transmission gear 31210 to rotate synchronously, and the transmission tooth plate 31212 is driven downward by the transmission gear 31210, thereby causing the comb plate 3129 to extend downward until the electric push rod 3127 extends to the preset extension amount and stops, and the comb plate 3129 no longer extends downward. At this time, the comb plate 3129 is in a fully expanded state. At the same time, the stirring component 313 is also separated from the discharge port 314. After that, the driving motor 3122 is rotated to drive the spreading plate 3121, the comb plate 3129 and the stirring component 313 to rotate together. The extended comb plate 3129 further extends into the filler. When it rotates following the spreading plate 3121, it can stir more fillers. Combined with the stirring effect of the stirring component 313, it can promote the speed at which the filler enters the discharge port 314, so as to achieve the purpose of accelerating the discharge speed of the filler. In this way, the combing member provided in the present invention follows the changes in the use state of the comb plate 3129 and synchronously adapts to the changes, so that it has two use states. In the retracted state, the filler can be evenly spread to maintain a certain gap between the fillers, and after being unfolded, the filler discharge speed can be promoted.

[0055] It should be noted that the inner ring surface of the extrusion ring 31213 can be inclined, which can be used to guide the substances adsorbed on the inner wall of the tower body 1 downward to avoid the substances always flowing vertically along the inner wall of the tower body 1 and affecting the reflux speed.

[0056] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A tail gas purification device for extracting pyrite from cyanide slag, comprising: An exhaust gas collection unit, a pretreatment unit, a separation unit, an absorption unit and a control unit, characterized in that the separation unit comprises a tower body (1), a spraying mechanism (2) and a filler loading and unloading mechanism (3), the spraying mechanism (2) being connected to the tower body (1) and being used to spray a treatment solution into the tower body (1), the filler loading and unloading mechanism (3) comprising a placement component (31), a feeding component (32) and a collecting component (33), the placement component (31) being arranged inside the tower body (1) and being used as a stacking position for fillers, the feeding component (32) being connected to the tower body (1) and being used to transport fillers to the top surface of the placement component (31), and the collecting component (33) being used to centrally collect fillers discharged from the bottom outlet of the tower body (1); The placement component (31) comprises a stacking plate (311), a spreading assembly (312) and a stirring assembly (313); the stacking plate (311) is fixed to the inner side wall of the tower body (1); a discharge port (314) is provided on the top surface of the stacking plate (311); the spreading assembly (312) is arranged on the stacking plate (311); the spreading assembly (312) has the functions of rising and rotating, and is used to spread the filler evenly on the top surface of the stacking plate (311); the stirring assembly (313) is retracted and arranged in the discharge port (314), and is used to block the discharge port (314); the stirring assembly (313) is in transmission connection with the spreading assembly (312); When replacing the filler, the paving assembly (312) moves upward, driving the stirring assembly (313) to first move upward and away from the discharge port (314), and then rotate to a state perpendicular to the top surface of the stacking plate (311), so that the stirring assembly (313) switches from a blocking posture to a stirring posture, and the paving assembly (312) rotates to drive the stirring assembly (313) to stir the filler, so that the filler falls downward from the discharge port (314). After all the filler is discharged, the paving assembly (312) moves downward, driving the stirring assembly (313) to retract into the discharge port (314) again to seal it. The paving assembly (312) comprises a paving plate (3121), a driving motor (3122) and a supporting sleeve (3123); the paving plate (3121) is arranged on the top surface of the stacking plate (311); the driving motor (3122) is fixedly mounted on the bottom surface of the stacking plate (311); a driving shaft (3124) is fixedly mounted on the rotating end of the driving motor (3122); a connecting sleeve (3125) is slidably sleeved on the outer side of the driving shaft (3124); and a movable groove (3123) is provided at one end of the bottom of the paving plate (3121) close to the connecting sleeve (3125). 3126), the top end of the connecting sleeve (3125) is slidably connected to the movable groove (3126), an electric push rod (3127) is installed inside the driving shaft (3124), the outer side of the telescopic end of the electric push rod (3127) is fixedly connected to the inner side wall of the connecting sleeve (3125), and a support spring (3128) is fixedly installed between the top surface of the telescopic end of the electric push rod (3127) and the inner top wall of the movable groove (3126), and the support sleeve (3123) is movably sleeved on the outer side of the connecting sleeve (3125), and its outer side is fixed to the stacking plate (311); The stirring assembly (313) comprises a stirring plate (3131), a connecting ring body (3132) and a rotating driving member. The stirring plate (3131) is arranged in the discharge port (314). The top surface of the stirring plate (3131) is flush with the top surface of the stacking plate (311). The connecting ring body (3132) is slidably sleeved on the upper end of the connecting sleeve (3125). A fixing plate (3133) is fixedly mounted on one end of the stirring plate (3131) close to the connecting ring body (3132). One end of the fixed plate (3133) is rotatably connected to the connecting ring body (3132); a vertical groove (3134) is provided on the outer side of the connecting sleeve (3125) along its height direction; the rotating drive member is respectively connected to the fixed plate (3133) and the connecting ring body (3132); when the connecting sleeve (3125) drives the connecting ring body (3132) to move upward, the rotating drive member can be engaged with the vertical groove (3134) and synchronously drive the stirring plate (3131) to rotate; The rotary drive member comprises a movable clamping shaft (3135), a torsion spring (3136), a contact block (3137) and a rotating member. The movable clamping shaft (3135) is slidably arranged in the connecting ring body (3132), and the other end of the movable clamping shaft (3135) slidably extends into the fixed plate (3133); the torsion spring (3136) is sleeved on the rotating end of the fixed plate (3133), and the two ends of the torsion spring (3136) are respectively fixed to the connecting ring body (3132) and the fixed plate (3133); a connecting spring (3138) is sleeved on the outer side of the movable clamping shaft (3135), and the connecting spring (3138) is sleeved on the outer side of the movable clamping shaft (3135). 8) are respectively fixedly connected to the clamping end of the movable clamping shaft (3135) and the inside of the connecting ring body (3132); the top surface of the stacking plate (311) is provided with an inclined groove (3139) adapted to the contact block (3137); the bottom of the contact block (3137) is clamped in the inclined groove (3139); the top of the contact block (3137) is fixedly connected to the movable clamping shaft (3135); and the top of the contact block (3137) is slidably connected to the connecting ring body (3132); when the movable clamping shaft (3135) is slidably clamped to the vertical groove (3134), the rotating member synchronously drives the fixed plate (3133) to rotate; The rotating member comprises a spiral groove (31310) and a driving cam (31311); the driving cam (31311) is fixedly mounted on one end of the movable clamping shaft (3135) close to the fixed plate (3133); the spiral groove (31310) is arranged inside the fixed plate (3133); the driving cam (31311) comprises a straight section and a spiral section; the driving cam (31311) is slidably connected to the straight section; The paving assembly (312) also includes a combing member, which includes a comb plate (3129), a transmission gear (31210), a matching tooth plate (31211), a transmission tooth plate (31212) and an extrusion ring (31213), wherein the comb plate (3129) is slidably mounted in the paving plate (3121), and the comb teeth at the bottom of the comb plate (3129) penetrate the bottom of the paving plate (3121), and the transmission gear (31210) is rotatably mounted in the movable groove (3126), and the bottom end of the matching tooth plate (31211) is fixedly connected to the top surface of the telescopic end of the electric push rod (3127), and the top of the matching tooth plate (31211) is fixedly connected to the top surface of the telescopic end of the electric push rod (3127). One end of the transmission tooth plate (31212) is fixedly connected to the comb plate (3129), and the other end of the transmission tooth plate (31212) is slidably extended from the top surface of the paving plate (3121) into the movable groove (3126) and is meshed with the other side of the transmission gear (31210). The extrusion ring body (31213) is located above the comb plate (3129), and the outer ring surface of the extrusion ring body (31213) is fixedly connected to the inner wall. When the paving plate (3121) moves to a preset maximum height, the top of the paving plate (3121) contacts the bottom of the extrusion ring body (31213).

2. The tail gas purification device for extracting pyrite from cyanide slag according to claim 1, characterized in that: The collecting component (33) comprises a control valve (331) and a collecting box (332); the control valve (331) is arranged at an outlet position at the bottom of the tower body (1); and the collecting box (332) is arranged at the bottom of the tower body (1).

3. The tail gas purification device for extracting pyrite from cyanide slag according to claim 2, characterized in that: The feeding component (32) comprises a feeding pump (321), the feeding pump (321) is located outside the tower body (1), the output end of the feeding pump is connected to a feeding pipe (322), the top end of the feeding pipe (322) is located above the stacking plate (311) and is connected to the inside of the tower body (1), and the input end of the feeding pump (321) is connected to an external filler storage box through a pipeline.

4. The tail gas purification device for extracting pyrite from cyanide slag according to claim 3, characterized in that: The spray mechanism (2) comprises a circulating water tank (21), a circulating pump (22) and a spray head (23); the circulating water tank (21) is arranged outside the tower body (1); the outside of the circulating water tank (21) is connected to the bottom of the tower body (1) via a connecting pipe (24); the spray head (23) is located directly above the stacking plate (311); the input end of the circulating pump (22) is connected to the inside of the circulating water tank (21) via the connecting pipe (24); and the output end of the circulating pump (22) is connected to the spray head (23) via a delivery pipe.

5. The tail gas purification device for extracting pyrite from cyanide slag according to claim 4, characterized in that: The number of the placement components (31) is two, and the two placement components (31) are distributed vertically in the tower body (1).

Images