A reaction device and system for producing zinc sulfide products

Abstract

The present invention relates to the field of zinc sulfide production, and particularly to a reaction device and system for producing zinc sulfide products. The reaction device includes side covers, on which a number of reaction chambers are installed. Two side covers are symmetrically installed on both sides of a conveying mechanism. Outlet end covers and inlet end covers are respectively installed at both ends of the conveying mechanism and the two side covers. The outlet end cover is externally connected to a negative pressure pump, and a mixing mechanism is hermetically installed inside the inlet end cover. The mixing mechanism is used for mixing sulfur vapor and zinc vapor. The conveying mechanism includes side plates and a conveying channel, on which an upper conveying part and a lower conveying part are installed. Spray heads are rotatably installed on both the upper conveying part and the lower conveying part, and the spray heads are arranged inside the reaction chambers. By controlling the air pressure in the reaction chambers, the present invention realizes the control of the consistency of the deposition thickness of the products and avoids the appearance of products with too thin thickness. By controlling the inlet direction and position of the reaction gas in the reaction chambers, the phenomenon of uneven deposition thickness of the products is avoided.

Description

Technical Field

[0001] The present invention relates to the field of zinc sulfide production, and particularly to a reaction device and system for producing zinc sulfide products. Background Art

[0002] Zinc sulfide is an infrared optical material with excellent performance. It has a wide transmission band covering visible light, mid-infrared, and far-infrared, and has good mechanical and thermal properties. It is widely used in the preparation of infrared optical components, infrared windows, and fairings of precision-guided missiles, etc. In addition, zinc sulfide has the characteristics of high purity, insoluble in water, moderate density, easy to process, etc. At the same time, zinc sulfide has strong resistance to harsh environments, high hardness, and a fracture strength twice that of zinc selenide.

[0003] Currently, the CVD method is mainly used to produce zinc sulfide products. During the production process, various problems are likely to occur during product deposition: 1. The product thickness is too thin, resulting in low strength and inability to be applied, causing significant cost losses; 2. The product thickness deposition is uneven, resulting in local differences in surface stress of the product and prone to cracking phenomena, increasing the processing difficulty. Summary of the Invention

[0004] To solve the aforementioned technical problems, the present invention provides a reaction device and system for producing zinc sulfide products. The reaction device controls the air pressure in the reaction chamber to achieve control of the consistency of the product deposition thickness and avoid the occurrence of products with too thin thickness; by controlling the inlet direction and position of the reaction gas in the reaction chamber, the phenomenon of uneven product thickness deposition is avoided; specifically, it is achieved through the following technical solutions.

[0005] A reaction device for producing zinc sulfide products according to the present invention includes a side cover, and a plurality of reaction chambers are installed on the side cover. Sealing grooves are fixed on both long sides of the side cover, and a first mounting plate is fixed outside the sealing grooves;

[0006] The two side covers are symmetrically installed on both sides of a conveying mechanism. The conveying mechanism and the first ends of the two side covers are hermetically installed with an outlet end cover. The outlet end cover is fixedly communicated with an outlet pipe, and the outlet pipe is externally connected to a negative pressure pump. The side surface of the outlet end cover is fixed to a second mounting plate;

[0007] The conveying mechanism and the second ends of the two side covers are hermetically installed with an inlet end cover. An inner cylinder is fixed inside the inlet end cover, and a mixing mechanism for mixing sulfur vapor and zinc vapor is hermetically installed inside the inner cylinder. The mixing mechanism is internally communicated with the conveying mechanism;

[0008] The conveying mechanism includes side plates, on which a number of third mounting plates and fourth mounting plates are fixed for installing the side cover, the outlet end cover and the inlet end cover. The side plates are fixed to the connecting blocks, and the connecting blocks are fixed to the conveying channel. The side plates, the third mounting plates, the fourth mounting plates, the sealing strips and the connecting blocks are symmetrically distributed about the center of the conveying channel;

[0009] A number of upper conveying parts are installed on the upper surface of the conveying channel, and a number of lower conveying parts are installed on the lower surface of the conveying channel. Spray heads are rotatably installed on both the upper conveying parts and the lower conveying parts. The spray heads are arranged inside the reaction chamber for conveying the reaction gas in the conveying channel to a number of reaction chambers.

[0010] Preferably, the spray head includes a counterweight, on which an annular through hole is coaxially provided. The annular through hole communicates with the circular inner cavity, the outer side of the circular inner cavity communicates with the annular pipe groove, and the circular inner cavity communicates with the shunt cavity;

[0011] The side of the shunt cavity communicates with the outer surface of the counterweight through a number of spray pipes. The spray pipes penetrate through the side wall of the counterweight. The contour shape of the spray pipes is arc-shaped, and the rotation directions of all the spray pipes are the same.

[0012] Preferably, the upper conveying part includes a first pipe, which is fixedly communicated with the conveying channel. The first pipe is fixedly communicated with a first neck pipe. The first neck pipe is sealingly and rotatably arranged in the annular through hole. The first neck pipe is fixedly communicated with a first annular cavity. The first annular cavity is rotatably arranged in the circular inner cavity;

[0013] The first annular cavity is fixedly communicated with a first annular pipe. The first annular pipe is rotatably arranged in the annular pipe groove. The outer surface of the first annular pipe is sealingly lapped with the inner surface of the annular pipe groove. A number of first through holes are provided at the top of the first annular pipe.

[0014] Preferably, the lower conveying part includes a second pipe, which is fixedly communicated with the conveying channel. The second pipe is fixedly communicated with a second neck pipe. The second neck pipe is sealingly and rotatably arranged in the annular through hole. The second neck pipe is fixedly communicated with a second annular cavity. The second annular cavity is rotatably arranged in the circular inner cavity;

[0015] The second annular cavity is fixedly communicated with a second annular pipe. The second annular pipe is rotatably arranged in the annular pipe groove. The outer surface of the second annular pipe is sealingly lapped with the inner surface of the annular pipe groove. A number of second through holes are provided at the top of the second annular pipe. A number of return pipes are fixed to the second annular cavity, and the return pipes connect the lower part and the upper part of the second annular cavity.

[0016] Preferably, the mixing mechanism includes an air inlet chamber, which is fixedly communicated with the mixing chamber. The mixing chamber can be hermetically arranged in the inner cylinder.

[0017] Two air inlet pipes are fixedly communicated with the air inlet chamber. The air inlet chamber is communicated with the first end of the U-shaped pipeline. Turbulence parts are alternately arranged on both sides of the path track of the U-shaped pipeline. The turbulence parts are used to mix sulfur vapor and zinc vapor evenly.

[0018] The second end of the U-shaped pipeline is fixedly communicated with the reflux chamber. The reflux chamber is fixedly communicated with the outlet. The outlet is opened in the middle of the mixing chamber.

[0019] Preferably, sealing strips are respectively fixed on the two long side surfaces of the side plate. The sealing strips and the side plate are inserted and arranged in the sealing groove.

[0020] Preferably, several of the spray pipes are divided into several layers according to different horizontal heights. The spray pipes in the middle layer are arranged in the same horizontal plane. Several spray pipes close to the annular through hole are located in a conical surface that slopes from the inside to the outside and from top to bottom. Several spray pipes far from the annular through hole are located in a conical surface that slopes from the inside to the outside and from bottom to top.

[0021] Preferably, the turbulence part includes a flow dividing block and a reflux air passage. The included angle between the flow dividing block and the path of the U-shaped pipeline is an acute angle. The included angle between the outlet direction of the reflux air passage and the traveling direction of the mixed gas in the U-shaped pipeline is an obtuse angle.

[0022] Preferably, the circular inner cavity, the annular pipe groove, and the flow dividing cavity are coaxially opened inside the counterweight. And the cross-sectional shape of the annular pipe groove along its radial direction is a racetrack shape.

[0023] The present invention also provides a system for producing zinc sulfide products, which includes the above reaction device for producing zinc sulfide products. By setting the reaction device for producing zinc sulfide products, it can ensure the production of zinc sulfide products with uniform thickness.

[0024] After adopting the above technical solutions, the beneficial effects of the present invention are as follows:

[0025] 1. By arranging a nozzle in the reaction chamber to rotate and spray the reaction gas, the reaction gas is evenly distributed at various positions in the reaction chamber, avoiding the production of products with uneven deposition thickness.

[0026] 2. By controlling the stability of the pressure in the reaction chamber by the self-weight of the nozzle, the best environment for product reaction is guaranteed, and the product quality is improved.

[0027] 3. The device is assembled modularly, which is convenient for demolding after product deposition, and convenient for the maintenance and repair of the device. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a three-dimensional view of a reaction device for producing zinc sulfide products;

[0030] Figure 2 It is an exploded view of the components of a reaction device for producing zinc sulfide products;

[0031] Figure 3 It is a three-dimensional view of the inlet end cap;

[0032] Figure 4 It is a three-dimensional view of the conveying mechanism;

[0033] Figure 5 It is Figure 4 a transverse sectional view of;

[0034] Figure 6 It is a sectional view of the upper conveying part;

[0035] Figure 7 It is a sectional view of the lower conveying part;

[0036] Figure 8 It is a perspective view of the spray head;

[0037] Figure 9 It is a three-dimensional view of the mixing mechanism;

[0038] Figure 10 It is a front sectional view of the mixing mechanism.

[0039] Explanation of reference numerals:

[0040] 101 - side cover, 102 - reaction chamber, 104 - first mounting plate, 105 - sealing groove, 106 - outlet end cap, 107 - air outlet pipe, 108 - second mounting plate, 109 - inlet end cap, 110 - inner cylinder;

[0041] 200 - Conveyor mechanism, 201 - Side plate, 202 - Third mounting plate, 203 - Fourth mounting plate, 204 - Sealing strip, 205 - Connecting block, 206 - Conveyor channel, 210 - Upper conveying part, 211 - First pipeline, 212 - First neck tube, 213 - First annular cavity, 214 - First annular tube, 215 - First through hole, 220 - Lower conveying part, 221 - Second pipeline, 222 - Second neck tube, 223 - Second annular cavity, 224 - Second annular tube, 225 - Second through hole, 226 - Return pipe, 230 - Sprayer, 231 - Counterweight, 232 - Annular through hole, 233 - Circular inner cavity, 234 - Annular pipe groove, 235 - Diverging cavity, 236 - Air injection pipe;

[0042] 300 - Mixing mechanism, 301 - Air inlet chamber, 302 - Mixing chamber, 303 - Air inlet pipe, 304 - U-shaped pipeline, 305 - Return cavity, 306 - Outlet, 310 - Turbulent part, 311 - Diverging block, 312 - Return air duct. Detailed implementation manners

[0043] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0044] The directional terms appearing in the following description are all the directions shown in the drawings and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation, connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] An embodiment of the present invention provides a reaction device for producing zinc sulfide products. Refer to Figure 1 、 Figure 2 , the reaction device includes a side cover 101, and a plurality of reaction chambers 102 are uniformly and fixedly installed along the length direction on the side cover 101. The reaction chamber 102 is a hemispherical shell, the inside of which is used to form a zinc sulfide deposition layer, and a temperature control mechanism is installed outside it to control the deposition temperature in the reaction chamber 102.

[0046] Among them, the temperature control mechanism can be an electrically heated insulation layer installed to achieve the heating and insulation effect of the reaction chamber 102, or it can be other structures that realize the temperature rise and insulation in the reaction chamber 102, which will not be elaborated here.

[0047] Sealing grooves 105 are fixedly installed on both long side edges of the side cover 101. A first mounting plate 104 is fixed outside the sealing groove 105. The side cover 101 is fixedly installed on one side of the conveying mechanism 200. The mechanism body composed of the side cover 101, the reaction chamber 102, the first mounting plate 104, and the sealing groove 105 is symmetrically distributed about the center of the conveying mechanism 200.

[0048] An outlet end cover 106 is fixedly installed at the first end of the conveying mechanism 200. The outlet end cover 106 is sleeved outside the first end of the conveying mechanism 200 where two sets of side covers 101 are installed, used to define the relative position between the side cover 101 and the conveying mechanism 200, and can completely block the first end of the conveying mechanism 200.

[0049] The middle part on the side of the outlet end cover 106 away from the conveying mechanism 200 is fixedly communicated with an air outlet pipe 107. The air outlet pipe 107 is externally connected to a negative pressure pump, used to control the reaction pressure in the reaction chamber 102. The side surface of the outlet end cover 106 is fixed to the second mounting plate 108.

[0050] See Figure 2 、 Figure 3 , an inlet end cover 109 is fixedly installed at the second end of the conveying mechanism 200. An inner cylinder 110 is coaxially fixed inside the inlet end cover 109. An annular gap is formed between the inlet end cover 109 and the inner cylinder 110. The second end of the conveying mechanism 200 where two sets of side covers 101 can be sleeved and installed is located in this annular gap. A mixing mechanism 300 is hermetically installed inside the inner cylinder 110. The mixing mechanism 300 is internally connected to the conveying mechanism 200, used to fully mix gaseous sulfur and gaseous zinc evenly and convey them into the conveying mechanism 200.

[0051] See Figure 4 、 Figure 5 , the conveying mechanism 200 includes side plates 201. Two third mounting plates 202 and two fourth mounting plates 203 are fixed outside the side plates 201. The two third mounting plates 202 are parallel to the long sides of the side plates 201 and are respectively close to the long sides of the side plates 201, respectively used to fixedly install the two first mounting plates 104. The two fourth mounting plates 203 are parallel to the short sides of the side plates 201 and are respectively close to the short sides of the side plates 201, respectively used to fixedly install the outlet end cover 106 and the inlet end cover 109.

[0052] Sealing strips 204 are respectively fixed on the two long side surfaces of the side plates 201. The sealing strips 204 and the side plates 201 are inserted and configured in the sealing grooves 105. The sealing strips 204 are used to achieve the seal between the side plates 201 and the sealing grooves 105.

[0053] The inner side of the side plate 201 is fixed to the connecting block 205, the connecting block 205 is fixed to the conveying channel 206, the cross-sectional shape of the conveying channel 206 perpendicular to the long side is square, and the structural body composed of the side plate 201, the third mounting plate 202, the fourth mounting plate 203, the sealing strip 204, and the connecting block 205 is symmetrically distributed about the center of the conveying channel 206.

[0054] A number of upper conveying parts 210 are uniformly and fixedly installed on the upper surface of the conveying channel 206 along its length direction. A spray head 230 is rotatably installed on the upper conveying part 210. The upper conveying part 210 communicates the spray head 230 with the inside of the conveying channel 206. A number of lower conveying parts 220 are uniformly and fixedly installed on the lower surface of the conveying channel 206 along its length direction. A spray head 230 is rotatably installed on the lower conveying part 220. The lower conveying part 220 communicates the spray head 230 with the inside of the conveying channel 206. The spray head 230 is coaxially arranged inside the reaction chamber 102.

[0055] With the above structure in this embodiment, the reactant gas that has been uniformly mixed in the mixing mechanism 300 is first conveyed into the inside of the conveying channel 206. Through the negative pressure pump installed on the air outlet pipe 107, a stable negative pressure is formed in the gap cavity surrounded by the conveying channel 206 and the side cover 101. Under the driving action of this negative pressure, the mixed gas in the conveying channel 206 is conveyed into the spray head 230 through the upper conveying part 210 and the lower conveying part 220, and the mixed gas is evenly and rotationally sprayed on the inner surface of the reaction chamber 102 through the spray head 230. After the mixed gas contacts the inner surface of the reaction chamber 102, it reacts and deposits into zinc sulfide products.

[0056] As a further explanation of the above embodiment, see Figure 8 , the spray head 230 includes a counterweight 231. The counterweight 231 is hemispherical. An annular through hole 232 is coaxially opened at the flat end of the counterweight 231. The annular through hole 232 communicates with the circular inner cavity 233. The outside of the circular inner cavity 233 communicates with the annular pipe groove 234. One side of the circular inner cavity 233 away from the annular through hole 232 communicates with the diversion cavity 235. The circular inner cavity 233, the annular pipe groove 234, and the diversion cavity 235 are coaxially opened inside the counterweight 231.

[0057] The side surface of the diversion cavity 235 is communicated with the outer surface of the counterweight 231 through a number of spray pipes 236. The spray pipes 236 penetrate through the side wall of the counterweight 231. The contour shape of the spray pipes 236 is arc-shaped, and the rotation directions of all the spray pipes 236 are the same.

[0058] A number of jet pipes 236 are divided into several layers according to different horizontal heights. The jet pipes 236 in the middle layer are arranged in the same horizontal plane. A number of jet pipes 236 near one side of the annular through-hole 232 are located in a conical surface that slopes from the inside to the outside and from top to bottom. A number of jet pipes 236 far from one side of the annular through-hole 232 are located in a conical surface that slopes from the inside to the outside and from bottom to top.

[0059] Among them, the cross-sectional shape of the annular pipe groove 234 along its radial direction is a runway shape.

[0060] With the above structure of the nozzle 230, when the mixed gas in the flow distribution cavity 235 is discharged outward through a number of jet pipes 236, the reaction force of the gas will push the counterweight 231 to rotate around the axis of the annular through-hole 232, and the jet pipes 236 at different horizontal height levels can evenly disperse the gas inside the reaction chamber 102, thereby ensuring the uniform thickness of the deposition layer.

[0061] See Figure 6 、 Figure 8 , the upper conveying part 210 includes a first pipe 211. The first end of the first pipe 211 is fixedly communicated with the upper surface of the conveying channel 206. The second end of the first pipe 211 is fixedly communicated with the first end of the first neck pipe 212. The first neck pipe 212 is hermetically and rotatably arranged inside the annular through-hole 232. The second end of the first neck pipe 212 is coaxially fixedly connected and communicated with the first annular cavity 213. The first annular cavity 213 is rotatably arranged inside the circular inner cavity 233.

[0062] The outer surface of the first annular cavity 213 is coaxially fixedly communicated with the first annular pipe 214. The first annular pipe 214 is rotatably arranged in the annular pipe groove 234, and the outer surface of the first annular pipe 214 is hermetically lapped with the inner surface of the annular pipe groove 234. A number of first through-holes 215 are evenly formed in the circumferential direction at the top of the first annular pipe 214.

[0063] As Figure 6 shown, the mixed gas in the conveying channel 206 enters the inside of the first annular pipe 214 through the first pipe 211, the first neck pipe 212, and the first annular cavity 213, and is ejected outward through the first through-holes 215 formed at the top of the first annular pipe 214. Due to the hermetic lapping relationship between the outer surface of the first annular pipe 214 and the inner surface of the annular pipe groove 234, when the mixed gas is ejected outward through the first through-holes 215, it will surely push the nozzle 230 upward, so that a gas channel appears between the top of the first annular cavity 213 and the first annular pipe 214 and the inner surfaces of the circular inner cavity 233 and the annular pipe groove 234. The mixed gas enters the flow distribution cavity 235 along this channel and then is discharged outward through a number of jet pipes 236.

[0064] See Figure 7 、 Figure 8, the lower conveying part 220 includes a second pipeline 221. The first end of the second pipeline 221 is fixedly communicated with the lower surface of the conveying channel 206, and the second end of the second pipeline 221 is fixedly communicated with the first end of a second neck pipe 222. The second neck pipe 222 is hermetically and rotationally arranged inside the annular through hole 232. The second end of the second neck pipe 222 is coaxially fixed and communicated with a second annular cavity 223. The second annular cavity 223 is rotationally arranged inside the circular inner cavity 233.

[0065] The outer surface of the second annular cavity 223 is coaxially fixedly communicated with a second annular pipe 224. The second annular pipe 224 is rotationally arranged in an annular pipe groove 234, and the outer surface of the second annular pipe 224 is hermetically lapped with the inner surface of the annular pipe groove 234. A plurality of second through holes 225 are uniformly formed in the circumferential direction at the top of the second annular pipe 224. A plurality of return pipes 226 are fixedly arranged along the circumferential direction of the second annular cavity 223. The return pipes 226 communicate the lower part and the upper part of the second annular cavity 223.

[0066] As Figure 7 shown, the mixed gas located in the conveying channel 206 enters the inside of the second annular pipe 224 through the second pipeline 221, the second neck pipe 222, and the second annular cavity 223, and is ejected outwards through the second through holes 225 formed at the top of the second annular pipe 224. Due to the hermetic lapping relationship between the outer surface of the second annular pipe 224 and the inner surface of the annular pipe groove 234, when the mixed gas is ejected outwards through the second through holes 225, it will surely push the spray head 230 upwards, so that a gas channel appears between the top of the second annular cavity 223 and the second annular pipe 224 and the inner surfaces of the circular inner cavity 233 and the annular pipe groove 234. The mixed gas first enters the inside of this air channel, and further enters the shunt cavity 235 downwards through a plurality of return pipes 226, and then is discharged outwards through a plurality of jet pipes 236.

[0067] When a gas channel appears between the top of the second annular cavity 223 and the second annular pipe 224 and the inner surfaces of the circular inner cavity 233 and the annular pipe groove 234, the spray head 230 is in a suspended state, thus greatly reducing the resistance of the counterweight 231 to rotate. Cooperating with the reaction force of the mixed gas ejected outwards through the jet pipes 236, the counterweight 231 is smoothly driven to rotate.

[0068] In addition, in the above structure, the self-gravity of the counterweight 231 can effectively maintain the negative pressure formed in the clearance cavity surrounded by the conveying channel 206 and the side cover 101. When the pressure difference between the inside and the outside of the conveying channel 206 becomes larger, the mixed gas automatically overcomes the gravity of the counterweight 231 and is discharged outwards. When the pressure difference between the inside and the outside of the conveying channel 206 becomes smaller, the mixed gas cannot overcome the gravity of the counterweight 231, and at this time the gas channel is closed.

[0069] By stably maintaining the negative pressure formed in the gap cavity enclosed by the conveying channel 206 and the side cover 101, the reaction conditions of the zinc sulfide product can be optimized, thereby improving the product quality.

[0070] As a further explanation of the above embodiment, refer to Figure 9 、 Figure 10 , the mixing mechanism 300 includes an air inlet chamber 301, the bottom of the air inlet chamber 301 is fixedly communicated with the mixing chamber 302, and the mixing chamber 302 can be hermetically configured inside the inner cylinder 110.

[0071] Two inlet pipes 303 are fixedly communicated with the side surface of the air inlet chamber 301. One inlet pipe 303 conveys sulfur vapor into the air inlet chamber 301, and the other inlet pipe 303 conveys zinc vapor into the air inlet chamber 301. The air inlet chamber 301 is communicated with the first end of the U-shaped pipeline 304. The U-shaped pipeline 304 has a U-shaped trajectory, and turbulence parts 310 are alternately arranged on both sides of the path trajectory of the U-shaped pipeline 304. The turbulence parts 310 are used to complete the mixing of sulfur vapor and zinc vapor.

[0072] The second end of the U-shaped pipeline 304 is fixedly communicated with the first end of the reflux chamber 305, and the second end of the reflux chamber 305 is fixedly communicated with the outlet 306. The outlet 306 is opened in the middle of the mixing chamber 302.

[0073] Among them, the turbulence part 310 includes a shunt block 311 and a reflux air duct 312. The included angle between the shunt block 311 and the path of the U-shaped pipeline 304 is an acute angle, and the included angle between the outlet direction of the reflux air duct 312 and the traveling direction of the mixed gas in the U-shaped pipeline 304 is an obtuse angle. This structure first shunts the mixed gas flowing in the path of the U-shaped pipeline 304. One part continues to flow along the path of the U-shaped pipeline 304, and the other part flows along the reflux air duct 312. At the outlet position of the reflux air duct 312, the shunted mixed gas meets and collides with the mixed gas on the path of the U-shaped pipeline 304 to form turbulence, thereby effectively realizing the further mixing of the two gases.

[0074] A 307 is fixedly installed on the outer surface of the mixing chamber 302. The 307 can be fixedly installed on the inlet end cover 109 through bolts, so that the mixing chamber 302 is hermetically configured inside the inner cylinder 110, and then the uniformly mixed reaction gas can be smoothly conveyed into the conveying channel 206.

[0075] As another embodiment of the present invention, the present invention also provides a system for producing zinc sulfide products. The system includes the above reaction device for producing zinc sulfide products. By setting the reaction device for producing zinc sulfide products, a zinc sulfide product with uniform thickness can be ensured to be produced.

[0076] In accordance with the embodiments of the present invention as described above, these embodiments do not exhaustively describe all details and do not limit the invention to only specific embodiments. Obviously, many modifications and variations can be made based on the above description. The present specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and its modified use based on the present invention. Any modifications, equivalent replacements, improvements, etc., made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A reaction device for producing zinc sulfide products, characterized in that: It comprises a side cover (101), a plurality of reaction chambers (102) are mounted on the side cover (101), sealing grooves (105) are fixed to two long sides of the side cover (101), and a first mounting plate (104) is fixed to the outside of the sealing groove (105); The two side covers (101) are symmetrically mounted on both sides of the conveying mechanism (200); the first ends of the conveying mechanism (200) and the two side covers (101) are sealed with an outlet end cover (106); the outlet end cover (106) is fixedly connected to an air outlet pipe (107); the air outlet pipe (107) is externally connected to a negative pressure pump; and the side surface of the outlet end cover (106) is fixed to a second mounting plate (108); The conveying mechanism (200) and the second ends of the two side covers (101) are sealed with an inlet end cover (109), an inner cylinder (110) is fixed inside the inlet end cover (109), a mixing mechanism (300) is sealed inside the inner cylinder (110), the mixing mechanism (300) is used to mix sulfur vapor and zinc vapor, and the mixing mechanism (300) is connected to the inside of the conveying mechanism (200); The conveying mechanism (200) comprises a side plate (201), a plurality of third mounting plates (202) and a fourth mounting plate (203) are fixed on the side plate (201) for completing the installation of the side cover (101), the outlet end cover (106) and the inlet end cover (109), the side plate (201) is fixed to a connecting block (205), the connecting block (205) is fixed to the conveying channel (206), and the side plate (201), the third mounting plate (202), the fourth mounting plate (203), the sealing strip (204) and the connecting block (205) are symmetrically distributed about the center of the conveying channel (206); A plurality of upper conveying parts (210) are mounted on the upper surface of the conveying channel (206), and a plurality of lower conveying parts (220) are mounted on the lower surface of the conveying channel (206). A nozzle (230) is rotatably mounted on both the upper conveying parts (210) and the lower conveying parts (220). The nozzle (230) comprises a counterweight head (231). The counterweight head (231) is provided with a plurality of jet pipes (236) penetrating its side wall and rotating in the same direction. The counterweight head (231) maintains negative pressure by its own gravity. The nozzle (230) is arranged inside the reaction chamber (102) and is used to transport the reaction gas in the conveying channel (206) to the plurality of reaction chambers (102).

2. The reaction device for producing zinc sulfide products according to claim 1, characterized in that: An annular through hole (232) is coaxially formed on the counterweight head (231), the annular through hole (232) is in communication with a circular inner cavity (233), the outer side of the circular inner cavity (233) is in communication with an annular tube groove (234), and the circular inner cavity (233) is in communication with a diversion cavity (235); The side surface of the flow distribution cavity (235) is connected to the outer surface of the counterweight head (231) through a plurality of air injection pipes (236), and the outline shape of the air injection pipes (236) is an arc shape.

3. The reaction device for producing zinc sulfide products according to claim 2, characterized in that: The upper conveying portion (210) comprises a first pipe (211), the first pipe (211) being fixedly connected to the conveying channel (206), the first pipe (211) being fixedly connected to the first neck tube (212), the first neck tube (212) being sealingly rotatably disposed in the annular through hole (232), the first neck tube (212) being fixedly connected to the first annular cavity (213), and the first annular cavity (213) being rotatably disposed in the circular inner cavity (233); The first annular cavity (213) is fixedly connected to the first annular tube (214); the first annular tube (214) is rotatably arranged in the annular tube groove (234); the outer surface of the first annular tube (214) is sealed and overlapped with the inner surface of the annular tube groove (234); and a plurality of first through holes (215) are provided on the top of the first annular tube (214).

4. The reaction device for producing zinc sulfide products according to claim 2, characterized in that: The lower conveying portion (220) comprises a second pipe (221), the second pipe (221) being fixedly connected to the conveying channel (206), the second pipe (221) being fixedly connected to the second neck tube (222), the second neck tube (222) being sealingly rotatably disposed in the annular through hole (232), the second neck tube (222) being fixedly connected to the second annular cavity (223), and the second annular cavity (223) being rotatably disposed in the circular inner cavity (233); The second annular cavity (223) is fixedly connected to the second annular tube (224); the second annular tube (224) is rotatably arranged in the annular tube groove (234); the outer surface of the second annular tube (224) is sealed and overlapped with the inner surface of the annular tube groove (234); a plurality of second through holes (225) are provided on the top of the second annular tube (224); a plurality of return tubes (226) are fixed on the second annular cavity (223); the return tubes (226) connect the lower part and the upper part of the second annular cavity (223).

5. The reaction device for producing zinc sulfide products according to claim 1, characterized in that: The mixing mechanism (300) comprises an air inlet chamber (301), the air inlet chamber (301) being fixedly connected to a mixing chamber (302), and the mixing chamber (302) being sealably disposed in the inner cylinder (110); The air intake chamber (301) is fixedly connected to two air intake pipes (303), the air intake chamber (301) is connected to a first end of a U-shaped pipeline (304), turbulent portions (310) are alternately arranged on both sides of a path track of the U-shaped pipeline (304), and the turbulent portions (310) are used to achieve uniform mixing of sulfur vapor and zinc vapor; The second end of the U-shaped pipeline (304) is fixedly connected to the reflux chamber (305), and the reflux chamber (305) is fixedly connected to the outlet (306), and the outlet (306) is opened in the middle of the mixing chamber (302).

6. The reaction device for producing zinc sulfide products according to claim 1, characterized in that: Sealing strips (204) are respectively fixed to the two long side surfaces of the side plate (201), and the sealing strips (204) and the side plate (201) are plugged into the sealing groove (105).

7. The reaction device for producing zinc sulfide products according to claim 2, characterized in that: The plurality of jet pipes (236) are divided into a plurality of layers according to different horizontal heights, the jet pipes (236) in the middle layer are arranged in the same horizontal plane, the plurality of jet pipes (236) close to the annular through hole (232) are located in a conical surface inclined from the inside to the outside and from the top to the bottom, and the plurality of jet pipes (236) away from the annular through hole (232) are located in a conical surface inclined from the inside to the outside and from the bottom to the top.

8. The reaction device for producing zinc sulfide products according to claim 5, characterized in that: The turbulent portion (310) comprises a flow dividing block (311) and a return air duct (312); the angle between the flow dividing block (311) and the path of the U-shaped pipeline (304) is an acute angle; and the angle between the outlet direction of the return air duct (312) and the traveling direction of the mixed gas in the U-shaped pipeline (304) is an obtuse angle.

9. The reaction device for producing zinc sulfide products according to claim 4, characterized in that: The circular inner cavity (233), the annular tube groove (234), and the flow-dividing cavity (235) are coaxially arranged inside the counterweight head (231), and the cross-sectional shape of the annular tube groove (234) along its radial direction is a racetrack shape.

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