Recycling device

Abstract

The utility model provides a recovery device, and relates to the technical field of sulfuric acid production. The recovery device comprises a material conveying belt, an inner box provided with a first containing cavity, a belt passing groove and a material passing groove, a material laying part arranged close to the material conveying belt, and a heating assembly used for heating the material conveying belt. The belt passing groove and the material passing groove are communicated with the first containing cavity, a part of the material conveying belt penetrates through the belt passing groove, the first containing cavity and the material passing groove and is used for dividing the first containing cavity into a material conveying space and a heating space, and a feeding port and an air collecting port which are communicated with the material conveying space are formed in the inner box. The feeding port is used for conveying sulfur slag into the material conveying space, the material spreading part is located in the material conveying space and used for spreading the sulfur slag on the material conveying belt, the feeding port, the material spreading part and the gas collecting port are sequentially distributed in the material conveying direction of the material conveying belt, and the heating assembly is arranged in the heating space. According to the recovery device provided by the invention, sulfur in the sulfur slag can be more effectively separated out, and the recovery efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of sulfuric acid production, and in particular to a recovery device. Background Art

[0002] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art.

[0003] The sulfuric acid production process requires melting solid sulfur, then putting diatomaceous earth into the filter to filter, and then the diatomaceous earth, solid impurities and part of the sulfur are discharged as sulfur slag. In the related art, the sulfur slag is usually put into a heating kettle for heating and stirring, so that the sulfur in the sulfur slag sublimates and is drawn away with the gas phase, and then solid sulfur is obtained again after cooling, so as to recover the sulfur in the sulfur slag.

[0004] However, during the heating and stirring process of the sulfur slag in the heating kettle, the heating efficiency and stirring efficiency of the sulfur slag near the kettle wall are high, while the heating efficiency and stirring efficiency of the sulfur slag far from the kettle wall are low. This makes it difficult to heat and sublimate the sulfur in all the sulfur slag, resulting in a low sulfur recovery efficiency. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a recovery device, aiming to solve the technical problem of low sulfur recovery efficiency in the related art.

[0006] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0007] An embodiment of the present application provides a recovery device, comprising:

[0008] Conveyor belt;

[0009] The inner box has a first accommodating chamber, and is respectively provided with a belt-passing slot and a material-passing slot connected with the first accommodating chamber, a portion of the material-transferring belt is respectively passed through the belt-passing slot, the first accommodating chamber and the material-passing slot, and is used to separate the first accommodating chamber into a material-transferring space and a heating space, and the inner box is respectively provided with a feed port and an air receiving port connected with the material-transferring space, and the feed port is used to transport sulfur slag into the material-transferring space;

[0010] A material spreading member is located in the material transfer space and is arranged close to the material transfer belt, and is used to spread the sulfur slag on the material transfer belt. The feed port, the material spreading member and the air receiving port are sequentially distributed along the material transfer direction of the material transfer belt;

[0011] A heating component is arranged in the heating space and is used for heating the conveying belt.

[0012] In one embodiment, the heating assembly includes a plurality of electric heating rollers, which are rotatably disposed in the heating space and are spaced apart along the material conveying direction of the material conveying belt, and the outer peripheral side of each of the electric heating rollers is in contact with the portion of the material conveying belt passing through the first accommodating cavity.

[0013] In one embodiment, the heating assembly includes a heat conducting plate, an air inlet pipe and an air outlet pipe. The heat conducting plate is connected to the inner box and fits the portion of the transfer belt passing through the first accommodating cavity. The air inlet pipe and the air outlet pipe are respectively passed through the inner box, and the air inlet pipe is used to transport hot air into the heating space.

[0014] In one embodiment, the recycling device further comprises a scraper, the material trough and the scraper are sequentially distributed along the material conveying direction of the conveying belt, and the scraper is arranged against the conveying belt; and / or

[0015] The recovery device also includes a brush member. The scraper member and the brush member are sequentially distributed along the material conveying direction of the material conveying belt. The bristles of the brush member are arranged against the material conveying belt.

[0016] In one embodiment, the recycling device also includes a material receiving box, which is located below the inner box. The material receiving box has a second accommodating cavity and is provided with a material drop opening connected to the second accommodating cavity. The brush member and / or the scraper member are respectively located above the material drop opening.

[0017] In one embodiment, the recovery device also includes a feed assembly, which includes a feed hopper, a feed pipe and a screen. The feed pipe is arranged at the feed port, and the feed pipe is connected to a portion of the feed hopper away from the feed port. The screen is arranged inside the feed hopper and is located between the feed port and the feed pipe.

[0018] In one embodiment, the recovery device also includes a cutting component, which is arranged inside the feed hopper and located on the side of the screen away from the feed port. The cutting component includes a first driving member, a transmission member and a cutting member. The transmission member is connected between the first driving member and the cutting member. The first driving member is connected to the feed hopper and is used to drive the transmission member to move, so as to drive the cutting member to move in a direction close to or away from the screen.

[0019] In one embodiment, the cutting member includes a knife seat and a plurality of cutters, one side of the knife seat is connected to the transmission member, the plurality of cutters are connected to a side of the knife seat away from the transmission member, and two adjacent cutters are arranged at intervals.

[0020] In one embodiment, the recovery device further includes an air collection component, which includes an air collection pipe, a control valve and an air pump. The air collection pipe is arranged at the air collection port, and the air pump and the control valve are respectively connected to the air collection pipe.

[0021] In one embodiment, the recovery device also includes a driving assembly and an outer box, the outer box has a third accommodating cavity, the material transfer belt and the inner box are respectively arranged in the third accommodating cavity, the inner box and the outer box are connected, the driving assembly is arranged in the third accommodating cavity and connected to the material transfer belt, and is used to drive the material transfer belt to move.

[0022] The beneficial effects of this application are:

[0023] When the recovery device provided by the present application is used, the heating component heats the conveyor belt, the sulfur slag is input into the conveyor space through the feed port and falls on the conveyor belt, the conveyor belt conveys the sulfur slag according to its conveying direction, and the material spreading component spreads the sulfur slag on the conveyor belt, thereby heating the sulfur slag, so that the sulfur in the sulfur slag is gasified or sublimated to form gaseous sulfur, and the gaseous sulfur is collected through the air receiving port, thereby realizing the recovery of sulfur in the sulfur slag. In this process, since the material spreading component can spread the sulfur slag on the conveyor belt, and the heating component can heat the conveyor belt, thereby realizing more uniform and sufficient heating of the sulfur slag, the sulfur in the sulfur slag can be separated more effectively, and the recovery efficiency is higher.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a recovery device in some embodiments of the present application is shown;

[0027] Figure 2 A schematic cross-sectional view of a recovery device in some embodiments of the present application is shown;

[0028] Figure 3 Shows Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0029] Figure 4 A schematic cross-sectional view of a feed assembly in some embodiments of the present application is shown;

[0030] Figure 5 A first cross-sectional structural schematic diagram of a recovery device in some other embodiments of the present application is shown;

[0031] Figure 6 A second cross-sectional structural schematic diagram of a recovery device in other embodiments of the present application is shown.

[0032] Description of main component symbols:

[0033] 100-recovery device; 111-transfer belt; 112-material spreading part; 113-scraping part; 114-brush part; 120-inner box; 121-first accommodating chamber; 1211-transferring space; 1212-heating space; 122-belt-passing slot; 123-material-passing slot; 124-feeding port; 125-air receiving port; 130-heating assembly; 131-electric heating roller; 132-heat conducting plate; 133-air inlet pipe; 134-air outlet pipe; 140-receiving box; 141-second accommodating chamber; 14 2-feeding port; 150-feeding assembly; 151-feeding hopper; 152-feeding pipe; 153-screen; 160-cutting assembly; 161-first driving member; 162-transmission member; 163-cutting member; 1631-knife holder; 1632-cutter; 170-air collecting assembly; 171-air collecting pipe; 172-control valve; 173-air pump; 180-driving assembly; 181-second driving member; 182-driving wheel; 183-driven wheel; 190-outer box; 191-third accommodating chamber. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] like Figure 1 As shown, an embodiment of the present application provides a recovery device 100, which relates to the technical field of sulfuric acid production and is mainly used to recover sulfur from sulfur slag produced in a sulfuric acid production process.

[0040] like Figure 1 and Figure 2As shown, the recycling device 100 provided in this embodiment includes: a material conveying belt 111, an inner box 120, a material spreading member 112 and a heating component 130.

[0041] Among them, the inner box 120 has a first accommodating chamber 121, and is respectively provided with a belt passing groove 122 and a material passing groove 123, which are respectively connected to the first accommodating chamber 121, and a part of the conveying belt 111 is respectively passed through the belt passing groove 122, the first accommodating chamber 121 and the material passing groove 123, which is used to separate the first accommodating chamber 121 into a material transfer space 1211 and a heating space 1212, and a feed port 124 and an air intake port 125 are respectively provided on the inner box 120, and the feed port 124 and the air intake port 125 are respectively connected to the material transfer space 1211, and the feed port 124 is used to transport sulfur slag into the material transfer space 1211. The material spreading member 112 is located in the material transfer space 1211 and is arranged close to the material transfer belt 111. The material spreading member 112 is used to spread the sulfur slag on the material transfer belt 111. The feed port 124, the material spreading member 112 and the air receiving port 125 are sequentially distributed along the material transfer direction of the material transfer belt 111. The heating component 130 is arranged in the heating space 1212 and is used to heat the material transfer belt 111.

[0042] Exemplarily, the paving member 112 may be a paving plate. Of course, the paving member 112 may also be a paving rod, a paving block, etc. As long as it is a structure that can spread the sulfur slag on the conveyor belt 111 with a preset thickness, it can be used as the paving member 112, and no specific restrictions are made on the structure of the paving member 112. The above-mentioned preset thickness can be 3mm to 8mm, for example, it can be any value among 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 5mm, 6mm, 6.5mm, 7mm, 8mm, or any value in the range of any two of them, and no specific restrictions are made on the paving thickness of the sulfur slag.

[0043] It is understandable that the arrangement of the belt-passing slot 122 and the material-passing slot 123 facilitates the assembly of the conveyor belt 111 and the inner box 120. At the same time, the arrangement of the material-passing slot 123 facilitates the passage of sulfur slag on the conveyor belt 111, thereby reducing the possibility of sulfur slag accumulating at the air receiving port 125 and preventing the sulfur slag from blocking the air receiving port 125.

[0044] In addition, the feed port 124 , the material spreading piece 112 and the air receiving port 125 are distributed in sequence along the material conveying direction of the conveying belt 111 , so that after the sulfur slag falls onto the conveying belt 111 through the feed port 124 , it can be first flattened by the material spreading piece 112 and then conveyed toward the air receiving port 125 .

[0045] In addition, the heating assembly 130 can heat the conveyor belt 111 to a preset temperature, which may be 180° to 220°. For example, the preset temperature may be any value among 180°, 181°, 185°, 190°, 195°, 200°, 210°, 220°, or any value in a range consisting of any two of them. The temperature of the conveyor belt 111 is not specifically limited herein.

[0046] It should be mentioned that, at present, for the recovery of sulfur in sulfur slag, the sulfur slag is usually put into a heating kettle for heating and stirring, so that the sulfur in the sulfur slag sublimates and is extracted with the gas phase, and then solid sulfur is obtained again after cooling, so as to realize the recovery of sulfur in the sulfur slag. However, in the process of heating and stirring the sulfur slag in the heating kettle, the heating efficiency and stirring efficiency of the sulfur slag near the kettle wall are high, while the heating efficiency and stirring efficiency of the sulfur slag far from the kettle wall are low, so it is difficult to heat and sublimate and separate all the sulfur in the sulfur slag, resulting in low sulfur recovery efficiency.

[0047] When the recovery device 100 provided in this embodiment is used, the heating component 130 heats the conveyor belt 111, and the sulfur slag is input into the conveying space 1211 through the feed port 124 and falls on the conveyor belt 111. The conveyor belt 111 conveys the sulfur slag in its conveying direction, and the spreading member 112 spreads the sulfur slag flat on the conveyor belt 111, thereby heating the sulfur slag, so that the sulfur in the sulfur slag is vaporized or sublimated to form gaseous sulfur, and the gaseous sulfur is collected through the gas receiving port 125, thereby realizing the recovery of sulfur in the sulfur slag.

[0048] In this process, since the spreading member 112 can spread the sulfur slag flat on the conveyor belt 111, and the heating component 130 can heat the conveyor belt 111, the sulfur slag can be heated more evenly and fully, so that the sulfur in the sulfur slag can be separated more effectively, with higher recovery efficiency.

[0049] It should be noted that the material of the transfer belt 111 can be brass, aluminum or other materials with good thermal conductivity to improve the heat transfer efficiency, so as to better heat and gasify the sulfur in the sulfur slag to achieve rapid separation of sulfur from diatomaceous earth and impurities.

[0050] like Figure 2 As shown, in one embodiment, the heating assembly 130 includes a plurality of electric heating rollers 131, which are rotatably disposed in the heating space 1212, and the plurality of electric heating rollers 131 are spaced apart along the conveying direction of the conveying belt 111, and the outer peripheral side of each electric heating roller 131 is in contact with the portion of the conveying belt 111 passing through the first accommodating cavity 121.

[0051] In the present embodiment, since a plurality of electric heating rollers 131 are used as the heating components 130, the outer peripheral side of each electric heating roller 131 is in contact with the portion of the material transfer belt 111 passing through the first accommodating cavity 121, that is, the outer peripheral side of the electric heating roller 131 is in surface contact with the material transfer belt 111. After being energized, the electric heating roller 131 can generate relatively high and uniform heat, and can rotate with the movement of the material transfer belt 111, so that the temperature of the material transfer belt 111 rises rapidly, thereby achieving uniform heating of the spread sulfur slag.

[0052] like Figure 5 and Figure 6 As shown, in another embodiment, the heating assembly 130 includes a heat conducting plate 132, an air inlet pipe 133 and an air outlet pipe 134. The heat conducting plate 132 is connected to the inner box 120 and fits the portion of the transfer belt 111 passing through the first accommodating cavity 121. The air inlet pipe 133 and the air outlet pipe 134 are respectively passed through the inner box 120, and the air inlet pipe 133 is used to transport hot air into the heating space 1212.

[0053] Exemplarily, the heat conducting plate 132 may be a metal plate structure with good thermal conductivity, such as an aluminum plate or a copper plate.

[0054] It can be understood that the air inlet pipe 133 is used to transport hot air into the heating space 1212, and the air outlet pipe 134 is used to discharge the hot air in the heating space 1212, so as to maintain the air pressure in the heating space 1212 balanced.

[0055] In the present embodiment, since a heat conducting plate 132, an air inlet pipe 133 and an air outlet pipe 134 are used as the heating component 130, the heat conducting plate 132 is attached to the portion of the material transfer belt 111 that passes through the first accommodating cavity 121, that is, the plate surface of the heat conducting plate 132 is in contact with the surface of the material transfer belt 111, and the air inlet pipe 133 can transport hot air into the heating space 1212, thereby heating the heating space 1212, so that the temperature of the heat conducting plate 132 is increased, and then the heat conducting plate 132 can transfer the heat to the material transfer belt 111, thereby realizing uniform heating of the spread sulfur slag.

[0056] It should be noted that when the air inlet pipe 133 is used to transport hot air into the heating space 1212, the heat conducting plate 132 is preferably rectangular in shape to increase the heat transfer area between the heat conducting plate 132 and the material transfer belt 111, thereby enhancing the heat transfer effect.

[0057] It should be understood that the multiple electric heating rollers 131, heat conducting plates 132 and air inlet pipes 133 mentioned above can be used in combination, that is, while multiple electric heating rollers 131 are provided, heat conducting plates 132 and air inlet pipes 133 for conveying hot air are also provided, which can improve the heating efficiency of the transfer belt 111.

[0058] like Figure 2 and Figure 6 As shown, in one embodiment, the recovery device 100 further includes a scraper 113 , the feed trough 123 and the scraper 113 are sequentially distributed along the material conveying direction of the conveying belt 111 , and the scraper 113 is disposed against the conveying belt 111 .

[0059] Exemplarily, the scraper 113 is a scraper plate. Of course, the scraper 113 may also be a scraper rod, a scraper block, etc. As long as it is a structure that can scrape the material off the conveyor belt 111, it can be used as the scraper 113. No specific restrictions are made on the structure of the scraper 113.

[0060] In this embodiment, since a scraper 113 is provided after the material chute 123, the scraper 113 is arranged in contact with the conveyor belt 111, so that the diatomaceous earth and impurities that are dried after heating and adhered to the conveyor belt 111 can be scraped off, thereby cleaning the conveyor belt 111. This facilitates the subsequent transmission of newly added sulfur slag and avoids the residual diatomaceous earth and impurities from affecting the recovery of sulfur in the newly added sulfur slag.

[0061] like Figure 2 and Figure 6 As shown, further, the recovery device 100 also includes a brush member 114 . The scraper member 113 and the brush member 114 are sequentially distributed along the material conveying direction of the material conveying belt 111 , and the bristles of the brush member 114 are arranged against the material conveying belt 111 .

[0062] In this embodiment, the conveyor belt 111 can be further cleaned finely by the bristles of the brush member 114 to further prevent the residual diatomaceous earth and impurities from affecting the recovery of sulfur in the newly added sulfur slag.

[0063] like Figure 2 and Figure 6 As shown, further, the recovery device 100 also includes a material receiving box 140, which is located below the inner box 120. The material receiving box 140 has a second accommodating cavity 141 and is provided with a material drop opening 142 connected to the second accommodating cavity 141. The brush member 114 and the scraper member 113 are respectively located above the material drop opening 142.

[0064] In this embodiment, since the brush member 114 and the scraper member 113 are respectively located above the drop opening 142 , the cleaned diatomaceous earth and impurities can fall into the second accommodating chamber 141 through the drop opening 142 , thereby realizing the collection of the diatomaceous earth and impurities through the collecting box 140 .

[0065] like Figure 1 and Figure 2As shown, in one embodiment, the recovery device 100 also includes a feed assembly 150, the feed assembly 150 includes a feed hopper 151, a feed pipe 152 and a screen 153, the feed pipe 152 is arranged at the feed port 124, the feed pipe 152 is connected to a portion of the feed hopper 151 away from the feed port 124, and the screen 153 is arranged inside the feed hopper 151 and is located between the feed port 124 and the feed pipe 152.

[0066] In this embodiment, the feeding pipe 152 is provided to facilitate the feeding of sulfur slag, and the feeding hopper 151 can guide the sulfur slag into the feeding port 124 so as to fall on the conveying belt 111. By providing a screen 153 inside the feeding hopper 151, it is possible to limit the sulfur slag with a size that is too large from falling on the conveying belt 111, thereby preventing the sulfur slag with a size that is too large from falling into the conveying belt 111 and clogging the gap between the material laying member 112 and the conveying belt 111.

[0067] like Figure 2 and Figure 3 As shown, in one embodiment, the recovery device 100 also includes a cutting component 160, which is arranged inside the feed hopper 151 and is located on the side of the screen 153 away from the feed port 124. The cutting component 160 includes a first driving member 161, a transmission member 162 and a cutting member 163. The transmission member 162 is connected between the first driving member 161 and the cutting member 163. The first driving member 161 is connected to the feed hopper 151, and is used to drive the transmission member 162 to move, so as to drive the cutting member 163 to move in a direction close to or away from the screen 153.

[0068] Exemplarily, the first driving member 161 is an electric cylinder, and the transmission member 162 is a telescopic rod. Of course, the first driving member 161 can also be a linear motor module, a cylinder, etc., and the transmission member 162 can be a connecting shaft, a connecting block, a connecting plate, etc.

[0069] In this embodiment, since the first driving member 161 is connected to the feed hopper 151, it can drive the transmission member 162 to move, thereby driving the cutting member 163 to move in a direction close to or away from the screen 153, that is, driving the cutting member 163 to perform linear reciprocating motion, so that oversized sulfur slag can be shredded to make the size of the sulfur slag meet the requirements, thereby reducing the possibility of the sulfur slag clogging the gap at the paving member 112.

[0070] It should be noted that when the size of the sulfur slag is too large and blocks the screen 153, the above-mentioned cutting component 160 can be used to cut the sulfur slag into pieces. When the screen 153 can feed normally, the above-mentioned cutting component 160 can be omitted.

[0071] like Figure 4As shown, further, the cutting member 163 includes a knife seat 1631 and a plurality of cutters 1632, one side of the knife seat 1631 is connected to the transmission member 162, the plurality of cutters 1632 are connected to a side of the knife seat 1631 away from the transmission member 162, and two adjacent cutters 1632 are arranged at intervals.

[0072] In this embodiment, since the cutter 1632 is connected to the side of the cutter holder 1631 away from the transmission member 162, and two adjacent cutters 1632 are arranged at intervals, that is, multiple cutters 1632 are arranged at intervals on the side of the cutter holder 1631 away from the transmission member 162, oversized sulfur slag can be chopped into multiple pieces of uniformly small-sized sulfur slag, thereby reducing the possibility of sulfur slag clogging the gap at the paving member 112.

[0073] Of course, for the above embodiment, the knife holder 1631 can also be eliminated, that is, the cutting member 163 is a cutter 1632, and the cutter 1632 is connected to the end of the transmission member 162 away from the first driving member 161. The cutter 1632 is driven by the first driving member 161 for multiple times to cut, which can also divide the oversized sulfur slag into multiple small-sized sulfur slag.

[0074] like Figure 1 and Figure 2 As shown, in one embodiment, the recovery device 100 also includes an air collection component 170, and the air collection component 170 includes an air collection pipe 171, a control valve 172 and an air pump 173. The air collection pipe 171 is arranged at the air collection port 125, and the air pump 173 and the control valve 172 are respectively connected to the air collection pipe 171.

[0075] For example, the control valve 172 may be a solenoid valve, a manual valve, or other element capable of controlling the on / off state of the air collecting pipe 171 .

[0076] In this embodiment, since the air pump 173 is connected to the air collecting pipe 171, the air pump 173 can generate negative pressure in the air collecting pipe 171 to quickly adsorb the gasified sulfur through the negative pressure, so that the gasified sulfur can be better collected and the sulfur recovery efficiency is improved.

[0077] like Figure 1 and Figure 2 As shown, in one embodiment, the recovery device 100 also includes a driving assembly 180 and an outer box 190, the outer box 190 has a third accommodating cavity 191, the transfer belt 111 and the inner box 120 are respectively arranged in the third accommodating cavity 191, the inner box 120 and the outer box 190 are connected, the driving assembly 180 is arranged in the third accommodating cavity 191, and is connected to the transfer belt 111, and is used to drive the transfer belt 111 to move.

[0078] In this embodiment, the inner box 120 and the material transfer belt 111 can be accommodated by the provision of the outer box 190, which facilitates the installation of the inner box 120 and the material transfer belt 111. At the same time, the inner box 120 and the material transfer belt 111 are isolated and shielded, which can prevent the external environment from causing adverse effects on the sulfur recovery process, and can prevent the sulfur recovery process from causing harm to personnel and surrounding objects, thereby improving the safety of the recovery device 100.

[0079] like Figure 2 , Figure 5 and Figure 6 As shown, further, the driving assembly 180 includes a second driving member 181, a driving wheel 182 and a driven wheel 183. The driving wheel 182 and the driven wheel 183 are respectively located in the third accommodating chamber 191 and are rotatably connected to the outer box 190. The material transfer belt 111 is respectively mounted on the driving wheel 182 and the driven wheel 183. The second driving member 181 is arranged on the outer box 190 and is connected to the driving wheel 182 for driving the driving wheel 182 to rotate relative to the outer box 190.

[0080] Exemplarily, the second driving member 181 may be a rotating electrical machine, a driving motor, or other element capable of outputting torque.

[0081] In this embodiment, the second driving member 181 can drive the driving wheel 182 to rotate, thereby driving the material transfer belt 111 and the driven wheel 183 to move, so that the material transfer belt 111 moves between the driving wheel 182 and the driven wheel 183 along its material transfer direction.

[0082] Of course, for the above embodiment, the driving assembly 180 can also be a combination of a handwheel, a driving wheel 182 and a driven wheel 183. The handwheel is rotatably disposed on the outer box 190 and connected to the driving wheel 182. By manually rotating the handwheel, the conveyor belt 111 can also be driven to transport sulfur slag.

[0083] It should be noted that an opening may be provided on the outer box 190, and the portion of the outer box 190 having the opening is connected to the material receiving box 140, and the drop port 142 of the material receiving box 140 is connected to the opening, so that the diatomaceous earth and impurities cleaned by the scraper 113 and the brush 114 can fall into the material receiving box 140 through the opening and the drop port 142 in turn for collection.

[0084] In summary, the working principle of the recovery device 100 provided in the embodiment of the present application is as follows: the first driving member 161 drives the driving wheel 182 to rotate relative to the outer box 190 to drive the conveying belt 111 to move along its conveying direction. At the same time, the heating component 130 heats the conveying belt 111, so that the temperature of the conveying belt 111 rises. The sulfur slag passes through the feed pipe 152 and is cut by the cutting component 160, and then falls on the conveying belt 111 under the filtration of the screen 153. As the conveying belt 111 conveys the sulfur slag, the spreading member 112 spreads the sulfur slag on the conveying belt 111, so that the spread sulfur slag is evenly heated by the conveying belt 111. During the heating process, the solid sulfur in the sulfur slag is gasified or sublimated into gaseous sulfur. Under the action of the air pump 173, the gaseous sulfur formed by the negative pressure adsorption of the air collecting pipe 171 is realized to recover the sulfur in the sulfur slag. The recovered gaseous sulfur can be cooled to obtain solid sulfur again.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A recovery device, characterized in that: include: A conveyor belt (111); The inner box (120) has a first accommodating chamber (121), and is respectively provided with a belt-passing groove (122) and a material-passing groove (123) which are in communication with the first accommodating chamber (121); a portion of the material-transferring belt (111) is respectively passed through the belt-passing groove (122), the first accommodating chamber (121) and the material-passing groove (123), so as to separate the first accommodating chamber (121) into a material-transferring space (1211) and a heating space (1212); a material-feeding port (124) and an air-receiving port (125) which are in communication with the material-transferring space (1211) are respectively provided on the inner box (120); the material-feeding port (124) is used to transport sulfur slag into the material-transferring space (1211); A material spreading member (112) is located in the material transfer space (1211) and is arranged close to the material transfer belt (111), and is used to spread the sulfur slag on the material transfer belt (111). The material feed port (124), the material spreading member (112) and the air receiving port (125) are sequentially distributed along the material transfer direction of the material transfer belt (111); A heating component (130) is disposed in the heating space (1212) and is used to heat the conveyor belt (111).

2. The recovery device according to claim 1, characterized in that: The heating assembly (130) includes a plurality of electric heating rollers (131), which are rotatably disposed in the heating space (1212), and are spaced apart along the material transfer direction of the material transfer belt (111), and the outer peripheral side of each of the electric heating rollers (131) is in contact with a portion of the material transfer belt (111) passing through the first accommodating cavity (121).

3. The recovery device according to claim 1, characterized in that: The heating component (130) comprises a heat conducting plate (132), an air inlet pipe (133) and an air outlet pipe (134); the heat conducting plate (132) is connected to the inner box (120) and is attached to the portion of the material transfer belt (111) passing through the first accommodating cavity (121); the air inlet pipe (133) and the air outlet pipe (134) are respectively passed through the inner box (120), and the air inlet pipe (133) is used to transport hot air into the heating space (1212).

4. The recovery device according to claim 1, characterized in that: The recovery device further comprises a scraper (113), the material trough (123) and the scraper (113) are sequentially distributed along the material conveying direction of the material conveying belt (111), and the scraper (113) is arranged to abut against the material conveying belt (111); and / or The recovery device further comprises a brush member (114); the scraper member (113) and the brush member (114) are sequentially distributed along the material transfer direction of the material transfer belt (111); and the bristles of the brush member (114) are arranged to abut against the material transfer belt (111).

5. The recovery device according to claim 4, characterized in that: The recycling device also includes a material receiving box (140), the material receiving box (140) is located below the inner box (120), the material receiving box (140) has a second accommodating cavity (141), and is provided with a material drop opening (142) connected to the second accommodating cavity (141), and the brush member (114) and / or the scraper member (113) are respectively located above the material drop opening (142).

6. The recovery device according to any one of claims 1 to 5, characterized in that: The recovery device also includes a feed assembly (150), which includes a feed hopper (151), a feed pipe (152) and a screen (153). The feed pipe (152) is arranged at the feed port (124), and the feed pipe (152) is connected to a portion of the feed hopper (151) away from the feed port (124). The screen (153) is arranged inside the feed hopper (151) and is located between the feed port (124) and the feed pipe (152).

7. The recovery device according to claim 6, characterized in that: The recovery device also includes a cutting component (160), which is arranged inside the feed hopper (151) and is located on the side of the screen (153) away from the feed port (124). The cutting component (160) includes a first driving member (161), a transmission member (162) and a cutting member (163). The transmission member (162) is connected between the first driving member (161) and the cutting member (163). The first driving member (161) is connected to the feed hopper (151) and is used to drive the transmission member (162) to move, so as to drive the cutting member (163) to move in a direction close to or away from the screen (153).

8. The recovery device according to claim 7, characterized in that: The cutting member (163) comprises a knife seat (1631) and a plurality of cutters (1632), one side of the knife seat (1631) is connected to the transmission member (162), the plurality of cutters (1632) are connected to a side of the knife seat (1631) facing away from the transmission member (162), and two adjacent cutters (1632) are arranged at intervals.

9. The recovery device according to any one of claims 1 to 5, characterized in that: The recovery device further comprises an air collection component (170), wherein the air collection component (170) comprises an air collection pipe (171), a control valve (172) and an air pump (173), wherein the air collection pipe (171) is arranged at the air collection port (125), and the air pump (173) and the control valve (172) are respectively connected to the air collection pipe (171).

10. The recovery device according to any one of claims 1 to 5, characterized in that: The recovery device further comprises a driving assembly (180) and an outer box (190); the outer box (190) has a third accommodating chamber (191); the material transfer belt (111) and the inner box (120) are respectively arranged in the third accommodating chamber (191); the inner box (120) and the outer box (190) are connected; the driving assembly (180) is arranged in the third accommodating chamber (191) and is connected to the material transfer belt (111) for driving the material transfer belt (111) to move.

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