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 filter pressing tank with an extrusion cavity and a feed port, a heating assembly arranged on the peripheral side of the filter pressing tank, an extrusion part arranged at one end of the extrusion cavity, and a liquid outlet assembly with a filter part and a liquid outlet pipe. The feeding hole is communicated with the extrusion cavity and is used for filling the extrusion cavity with sulfur slag. The heating assembly is used for heating the filter pressing tank; the extrusion part is used for extruding sulfur slag. The filter part is arranged at one end, far away from the extrusion part, in the extrusion cavity, a liquid collecting cavity is defined by the filter part, a plurality of filter holes communicated with the extrusion cavity are formed in the filter part, the liquid outlet pipe penetrates through the peripheral side of the filter pressing tank and is connected with the filter part, and the interior of the liquid outlet pipe is communicated with the liquid collecting cavity. According to the recovery device provided by the invention, the liquid sulfur is subjected to filter pressing collection through the extrusion part and the filter part, so that the use of a heat source can be saved, and the recovery cost of the sulfur is reduced.

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, since the sulfur slag contains not only solid sulfur in the pores of diatomaceous earth, but also some free liquid sulfur, if this part of liquid sulfur needs to be heated and sublimated, a large amount of heat source will often be wasted, thereby increasing the recovery cost. 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 high sulfur recovery cost in the related art.

[0006] In order to achieve the above-mentioned objectives, the technical solutions adopted in this application are as follows:

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

[0008] A filter press tank having an extrusion cavity and a feed port connected to the extrusion cavity, wherein the feed port is used to fill the extrusion cavity with sulfur slag;

[0009] A heating assembly is arranged on the outer peripheral side of the filter press tank and is used to heat the filter press tank;

[0010] An extrusion piece, disposed at one end of the extrusion chamber, for extruding the sulfur slag;

[0011] The liquid outlet assembly comprises a filter element and a liquid outlet pipe, wherein the filter element is arranged in the extrusion chamber at one end away from the extrusion element, the filter element defines a liquid collecting chamber and is provided with a plurality of filter holes connected with the extrusion chamber, the liquid outlet pipe is passed through the outer peripheral side of the filter press tank and is connected with the filter element, and the interior of the liquid outlet pipe is connected with the liquid collecting chamber.

[0012] In one embodiment, the extrusion member is a push plate, which is slidably disposed in the extrusion chamber, and the recovery device further includes a driving component, which is connected to a side of the push plate away from the liquid outlet component and is used to drive the push plate to move in a direction close to or away from the liquid outlet component; or

[0013] The extrusion piece is an air pipe, which is fixedly arranged at the end of the filter press tank and can input gas for extruding the sulfur slag into the extrusion cavity.

[0014] In one of the embodiments, a vacuum breaking port is provided on the filter press tank, and the vacuum breaking port is located on a side of the push plate away from the filter element and is connected to the extrusion chamber.

[0015] In one embodiment, the liquid outlet assembly also includes a sleeve clamp, which includes a plate sleeve and a cover plate. The plate sleeve is connected to the outer peripheral side of the filter press tank and defines a accommodating chamber adapted to the shape of the filter element. The accommodating chamber is communicated with the extrusion chamber. An opening communicated with the accommodating chamber is provided on the side of the plate sleeve away from the extrusion chamber. The cover plate is detachably connected to the plate sleeve for closing the opening. The portion of the liquid outlet pipe away from the filter element is penetrated through the accommodating chamber and connected to the cover plate.

[0016] In one of the embodiments, the sleeve clamp further includes a baffle, which is located in the accommodating cavity, and the outer peripheral side of the baffle is in contact with the inner wall of the plate sleeve, and the liquid outlet pipe is penetrated through the baffle and fixedly connected to the baffle.

[0017] In one embodiment, the liquid outlet assembly further includes a limiting plate, a limiting groove is provided on the inner wall of the filter press tank, and the limiting plate is connected to a side of the filter element away from the plate sleeve for being inserted into the limiting groove.

[0018] In one embodiment, the recovery device further includes a lifting assembly and a manifold, and a plurality of the liquid outlet assemblies are provided, and the plurality of the liquid outlet assemblies are spaced apart along the extrusion direction of the extrusion member, and the liquid outlet pipe of each of the liquid outlet assemblies is connected to the manifold, and the lifting assembly is connected to the manifold to drive the liquid outlet assembly to move along a preset direction, and the preset direction is perpendicular to the extrusion direction of the extrusion member.

[0019] In one embodiment, the heating assembly includes an insulation sleeve, a heat inlet pipe and a heat outlet pipe. The insulation sleeve is arranged around the outer circumference of the filter press tank, and the insulation sleeve and the outer circumference of the filter press tank jointly define a heating chamber. The heat inlet pipe and the heat outlet pipe are respectively inserted into the insulation sleeve and are respectively connected to the heating chamber. The heat inlet pipe is used to input hot air into the heating chamber.

[0020] In one embodiment, the filter element includes a frame, a first filter plate, a second filter plate and a partition plate. The first filter plate and the second filter plate each have a plurality of filter holes and are respectively connected to the inner circumference of the frame. The first filter plate, the second filter plate and the frame jointly define the liquid collecting chamber. The partition plate is arranged in the liquid collecting chamber and is located between the first filter plate and the second filter plate.

[0021] In one of the embodiments, the filter press tank is provided with a discharge port connected to the extrusion chamber, the feed port and the discharge port are respectively located on the outer peripheral side of the filter press tank, and the feed port and the discharge port are arranged far away from each other in the extrusion direction of the extrusion member, and the liquid outlet component is located between the feed port and the discharge port.

[0022] The beneficial effects of this application are:

[0023] When the recovery device provided by the present application is used, sulfur slag is filled into the extrusion cavity through the feed port, the heating component heats the filter press tank, so that the filter press tank heats the sulfur slag inside it, the extrusion member extrude the heated sulfur slag along its extrusion direction, the filter member filters the sulfur slag through a plurality of filter holes, and the liquid sulfur filtered out is collected in the liquid collecting cavity and output through the liquid outlet pipe, thereby realizing the recovery of liquid sulfur free in diatomaceous earth and solid impurities, which can save the use of heat source and reduce the cost of sulfur recovery.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and understandable, preferred embodiments are specifically listed 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 first cross-sectional structural schematic diagram 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 second cross-sectional structural schematic diagram of a recovery device in some embodiments of the present application is shown;

[0030] Figure 5 A schematic cross-sectional view of the structure of a filter element assembled with a liquid outlet pipe and a limit plate in some embodiments of the present application is shown;

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

[0032] Description of main component symbols:

[0033] 100-recovery device; 110-filter press tank; 111-extrusion chamber; 112-feeding port; 113-discharging port; 114-limiting groove; 120-heating assembly; 121-insulation sleeve; 1211-heating chamber; 122-heat inlet pipe; 123-heat outlet pipe; 130-extrusion member; 131-push plate; 132-air pipe; 140-liquid outlet assembly; 141-filter member; 1411-frame; 1412-first filter plate; 1413-second filter plate; 1414 - partition; 1415 - liquid collecting chamber; 1416 - filter hole; 142 - liquid outlet pipe; 143 - sleeve clamp; 1431 - plate sleeve; 1432 - cover plate; 1433 - accommodating chamber; 1434 - opening; 1435 - baffle; 144 - limit plate; 150 - drive assembly; 151 - first drive member; 152 - first transmission member; 160 - lifting assembly; 161 - second drive member; 162 - second transmission member; 171 - manifold; 172 - bracket; 173 - column. 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-mentioned 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 liquid sulfur in sulfur slag produced in a sulfuric acid production process.

[0040] like Figures 1 to 3 As shown, the recovery device 100 provided in this embodiment includes: a filter press tank 110, a heating component 120, an extrusion component 130 and a liquid outlet component 140.

[0041] The filter press tank 110 has an extrusion chamber 111 and is provided with a feed port 112 connected to the extrusion chamber 111. The feed port 112 is used to fill the extrusion chamber 111 with sulfur slag. The heating component 120 is arranged on the outer peripheral side of the filter press tank 110 and is used to heat the filter press tank 110. The extrusion member 130 is arranged at one end of the extrusion chamber 111 and is used to extrude sulfur slag. The liquid outlet component 140 includes a filter element 141 and a liquid outlet pipe 142. The filter element 141 is arranged at one end of the extrusion chamber 111 away from the extrusion member 130. The filter element 141 defines a liquid collecting chamber 1415 and is provided with a plurality of filter holes 1416 connected to the extrusion chamber 111. The liquid outlet pipe 142 is passed through the outer peripheral side of the filter press tank 110 and is connected to the filter element 141. The interior of the liquid outlet pipe 142 is connected to the liquid collecting chamber 1415.

[0042] It should be noted that the heating assembly 120 mentioned above is arranged on the outer peripheral side of the filter press tank 110, and is used to heat the filter press tank 110, so that the filter press tank 110 can heat the sulfur slag inside it, so that the solid sulfur in the diatomaceous earth and solid impurities is converted into liquid sulfur.

[0043] It should be mentioned that in the related art, sulfur slag is usually put into a heating kettle for heating and stirring, so that the sulfur in the sulfur slag is sublimated and extracted with the gas phase, and then solid sulfur is obtained again after cooling, so as to recover the sulfur in the sulfur slag. However, since the sulfur slag contains not only solid sulfur in the pores of diatomaceous earth, but also some free liquid sulfur, if this part of liquid sulfur needs to be heated and sublimated, it often needs to waste a lot of heat source, thereby increasing the recovery cost.

[0044] It can be understood that when the recovery device 100 provided in this embodiment is used, sulfur slag is filled into the extrusion chamber 111 through the feed port 112, the heating component 120 heats the filter press 110, so that the filter press 110 heats the sulfur slag inside it, the extrusion member 130 extrude the heated sulfur slag along its extrusion direction, the filter member 141 filters the sulfur slag through a plurality of filter holes 1416, and the liquid sulfur filtered out is collected in the liquid collecting chamber 1415 and output through the liquid outlet pipe 142, thereby realizing the recovery of liquid sulfur free from diatomaceous earth and solid impurities, which can save the use of heat source and reduce the cost of sulfur recovery.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment, the extrusion member 130 is a push plate 131, which is slidably disposed in the extrusion chamber 111. The recovery device 100 also includes a driving assembly 150, which is connected to the side of the push plate 131 away from the liquid outlet assembly 140, and is used to drive the push plate 131 to move in a direction close to or away from the liquid outlet assembly 140.

[0046] like Figure 1 As shown, illustratively, the drive assembly 150 is disposed on a bracket 172 , and the filter press tank 110 is placed on the bracket 172 via a column 173 .

[0047] In this embodiment, the push plate 131 is driven by the driving component 150 to squeeze the sulfur slag along its moving direction, that is, the push plate 131 moves toward the direction close to the liquid outlet component 140, and the filter element 141 filters the sulfur slag through multiple filter holes 1416, and the liquid sulfur filtered out is collected in the liquid collecting chamber 1415 and output through the liquid outlet pipe 142.

[0048] Furthermore, the push plate 131 moves at a speed of 1 mm / s to 10 mm / s along its extrusion direction.

[0049] Exemplarily, the speed at which the push plate 131 moves along its extrusion direction can be selected as any value among 1mm / s, 2mm / s, 3mm / s, 4mm / s, 4.5mm / s, 5mm / s, 6.3mm / s, 7mm / s, 8mm / s, 9mm / s, 10mm / s or any value in a range consisting of any two of them.

[0050] In this embodiment, the push plate 131 with a moving speed of 1 mm / s to 10 mm / s cooperates with the filter element 141 to achieve a better filter pressing effect on the sulfur slag, so that the liquid sulfur can be quickly separated, thereby improving the sulfur recovery efficiency.

[0051] like Figure 1 and Figure 2 As shown, further, the driving assembly 150 includes a first driving member 151 and a first transmission member 152. The first transmission member 152 is slidably inserted into the end of the filter press tank 110 and connected to the side of the push plate 131 away from the liquid outlet assembly 140. The output end of the first driving member 151 is connected to the end of the first transmission member 152 away from the push plate 131, which is used to drive the first transmission member 152 to slide relative to the filter press tank 110, so as to drive the push plate 131 to move in a direction close to or away from the liquid outlet assembly 140.

[0052] Exemplarily, the first driving member 151 is an electric cylinder, and the first transmission member 152 is a transmission shaft. Of course, the first driving member 151 can also be a linear motor module, a cylinder, etc., and the first transmission member 152 can also be a telescopic rod, a connecting block, a connecting plate, etc.

[0053] In this embodiment, the first driving member 151 drives the first transmission member 152 to slide relative to the filter press tank 110, so that the first transmission member 152 can drive the push plate 131 to move along its extrusion direction, that is, move in the direction close to the liquid outlet component 140, thereby cooperating with the filter element 141 to filter the sulfur slag, so that the liquid sulfur can be quickly separated.

[0054] Of course, for the above embodiment, the driving assembly 150 may also be eliminated, and a push rod may be provided at the end of the filter press tank 110. By manually pushing the push rod, the push plate 131 may also be driven to squeeze the sulfur slag.

[0055] It should be noted that, in the process of the push plate 131 squeezing the sulfur slag, negative pressure may be generated on the side of the push plate 131 away from the filter element 141, which may hinder the advancement of the push plate 131. Therefore, a vacuum breaking port may be opened on the filter press tank 110. The vacuum breaking port is located on the side of the push plate 131 away from the filter element 141, and the vacuum breaking port is connected to the extrusion chamber 111. In this way, the negative pressure generated on the side of the push plate 131 away from the filter element 141 can be eliminated, so that the advancement of the push plate 131 is smoother.

[0056] like Figure 6 As shown, in another embodiment, the extrusion member 130 is an air pipe 132 , which is fixedly disposed at the end of the filter press tank 110 and can input gas for extruding the sulfur slag into the extrusion chamber 111 .

[0057] It should be noted that the above-mentioned air pipe 132 is fixedly passed through the end of the filter press tank 110, which means that the air pipe 132 is passed through the end of the filter press tank 110 and is fixedly connected to the end of the filter press tank 110, that is, there is no relative movement between the air pipe 132 and the filter press tank 110.

[0058] In this embodiment, a high-pressure gas source is connected via the air pipe 132 to achieve a slow and continuous introduction of high-pressure gas into the filter press tank 110, and the heated sulfur slag is squeezed by the air pressure. The filter element 141 can also be used to filter the sulfur slag. The liquid sulfur filtered out is collected in the liquid collecting chamber 1415 and output through the liquid outlet pipe 142.

[0059] Furthermore, the filter press tank 110 is placed in a vertical direction, and the extrusion direction of the gas input by the air pipe 132 is opposite to the gravity direction of the filter press tank 110. That is, the filter press tank 110 is placed vertically so that the air pipe 132 takes in air from the bottom end of the filter press tank 110, and the filter element 141 is located above the interior of the filter press tank 110 at this time. In this way, the effect of filtering the sulfur slag is better and the recovery efficiency is higher.

[0060] It should be noted that the air pipe 132 and the push plate 131 can also be used in combination, that is, the thrust of the push plate 131 and the gas pressure input from the air pipe 132 can jointly squeeze the sulfur slag to achieve a better filter pressing effect.

[0061] like Figures 2 to 4As shown, in one embodiment, the liquid outlet assembly 140 also includes a sleeve clamp 143, the sleeve clamp 143 includes a plate sleeve 1431 and a cover plate 1432, the plate sleeve 1431 is connected to the outer peripheral side of the filter press tank 110, and defines a accommodating chamber 1433 that is adapted to the outer shape of the filter element 141, the accommodating chamber 1433 is communicated with the extrusion chamber 111, and an opening 1434 that is communicated with the accommodating chamber 1433 is provided on the side of the plate sleeve 1431 away from the extrusion chamber 111, the cover plate 1432 is detachably connected to the plate sleeve 1431, and is used to close the opening 1434, and the portion of the liquid outlet pipe 142 away from the filter element 141 is penetrated through the accommodating chamber 1433 and is connected to the cover plate 1432.

[0062] In this embodiment, since the plate sleeve 1431 is connected to the outer peripheral side of the filter press tank 110 and defines a accommodating cavity 1433 that is adapted to the outer shape of the filter element 141, and the cover plate 1432 is detachably connected to the plate sleeve 1431, and the liquid outlet pipe 142 is connected to the cover plate 1432, the detachable connection between the filter element 141 and the filter press tank 110 is achieved. Therefore, after the sulfur residue filtration is completed, the cover plate 1432 can be removed from the plate sleeve 1431, and the liquid outlet pipe 142 can be lifted to remove the filter element 141, so that the filter element 141 can be cleaned conveniently, thereby preparing for the next use.

[0063] like Figure 3 and Figure 4 As shown, further, the sleeve clamp 143 also includes a baffle 1435, which is located in the accommodating cavity 1433, and the outer peripheral side of the baffle 1435 is attached to the inner wall of the plate sleeve 1431, and the liquid outlet pipe 142 is penetrated by the baffle 1435 and fixedly connected to the baffle 1435.

[0064] It should be noted that the outer peripheral side of the baffle 1435 mentioned above is in contact with the inner wall of the plate sleeve 1431 means that the cross-sectional shape of the baffle 1435 is consistent with the cross-sectional shape of the accommodating cavity 1433 .

[0065] In this embodiment, since the baffle 1435 is attached to the inner wall of the plate sleeve 1431 and the liquid outlet pipe 142 is fixedly arranged on the baffle 1435, the baffle 1435 can prevent sulfur slag from accumulating inside the plate sleeve 1431, thereby avoiding the situation where the filter element 141 cannot be removed or is difficult to remove due to excessive sulfur slag accumulated in the plate sleeve 1431.

[0066] like Figure 2 and Figure 4 As shown, further, the liquid outlet assembly 140 also includes a limiting plate 144, a limiting groove 114 is opened on the inner wall of the filter press tank 110, and the limiting plate 144 is connected to the side of the filter element 141 away from the plate sleeve 1431, and is used to be inserted into the limiting groove 114.

[0067] For the convenience of description, in this embodiment Figure 2 The perspective shown is used as an example for explanation: through the plug-in cooperation of the limiting groove 114 and the limiting plate 144, and the limiting of the liquid outlet pipe 142 by the plate sleeve 1431, the filter element 141 can be supported in the upward and left and right directions, thereby preventing the filter element 141 from moving or deforming and causing damage when the sulfur slag is squeezed by the extrusion member 130, thereby extending the service life of the recovery device 100.

[0068] like Figure 1 , Figure 2 and Figure 6 As shown, further, the recovery device 100 also includes a lifting component 160 and a manifold 171, and a plurality of liquid outlet components 140 are provided. The plurality of liquid outlet components 140 are spaced apart along the extrusion direction of the extrusion member 130, and the liquid outlet pipe 142 of each liquid outlet component 140 is connected to the manifold 171. The lifting component 160 is connected to the manifold 171, and is used to drive the liquid outlet component 140 to move along a preset direction, which is perpendicular to the extrusion direction of the extrusion member 130.

[0069] like Figure 1 As shown, exemplarily, the lifting assembly 160 is disposed on a bracket 172 , and the filter press tank 110 is placed on the bracket 172 via a column 173 .

[0070] In this embodiment, by arranging a plurality of liquid outlet assemblies 140 at intervals along the extrusion direction of the extruder in the extrusion chamber 111, the distance between the extruder 130 and the filter 141 can be shortened, making the filter press process more efficient and thorough, and at the same time, the upper limit of the pressure of the filter press process can be reduced, so that the liquid sulfur in the sulfur slag can be collected without excessive extrusion force. At the same time, since the liquid outlet pipe 142 of each liquid outlet assembly 140 is connected to the manifold 171, the liquid sulfur collected by each liquid outlet pipe 142 during the filter press can be gathered to the manifold 171 for unified output. In addition, the liquid outlet assembly 140 can be driven to move in a direction perpendicular to the extrusion direction of the extruder 130 through the lifting assembly 160, so that the filter 141 can be placed in the extrusion chamber 111 or taken out from the extrusion chamber 111, so that there is no need to manually extract the liquid outlet pipe 142 to take out the filter 141, which reduces the downtime maintenance time of the recovery device 100, thereby improving the recovery efficiency of sulfur.

[0071] like Figure 1 As shown, further, the lifting assembly 160 includes a second driving member 161 and a second transmission member 162 , one end of the second transmission member 162 is connected to the manifold 171 , and one end of the second transmission member 162 away from the manifold 171 is connected to the output end of the second driving member 161 .

[0072] Exemplarily, the second driving member 161 is an electric cylinder, and the second transmission member 162 is a transmission shaft. Of course, the second driving member 161 can also be a linear motor module, a cylinder, etc., and the second transmission member 162 can also be a telescopic rod, a connecting block, a connecting plate, etc.

[0073] In this embodiment, the second driving member 161 can drive the second transmission member 162 to move, thereby driving the liquid outlet component 140 to move in a preset direction, so that the filter element 141 can be placed in the extrusion chamber 111 or taken out from the extrusion chamber 111. In this way, there is no need to manually extract the liquid outlet pipe 142 to remove the filter element 141, thereby reducing the downtime and maintenance time of the recovery device 100.

[0074] like Figure 2 , Figure 4 and Figure 6 As shown, in one embodiment, the heating assembly 120 includes a heat insulation sleeve 121, a heat inlet pipe 122 and a heat outlet pipe 123. The heat insulation sleeve 121 is arranged around the outer peripheral side of the filter press tank 110, and the heat insulation sleeve 121 and the outer peripheral side of the filter press tank 110 jointly define a heating chamber 1211. The heat inlet pipe 122 and the heat outlet pipe 123 are respectively penetrated by the heat insulation sleeve 121 and are respectively connected to the heating chamber 1211. The heat inlet pipe 122 is used to input hot air into the heating chamber 1211.

[0075] In this embodiment, hot air is input into the heating chamber 1211 through the heat inlet pipe 122, and the hot air in the heating chamber 1211 is output through the heat outlet pipe 123, so that the hot air circulates in the heating chamber 1211, thereby achieving the effect of heating the filter press tank 110. In this way, the filter press tank 110 can heat the sulfur slag, so that the solid sulfur in the diatomaceous earth and solid impurities is converted into liquid sulfur, which is convenient for the subsequent filtering of the sulfur slag to obtain liquid sulfur.

[0076] In another embodiment, the heating component 120 may also be an electric heating wire, heating ceramic, heating mesh, etc. wound around the outer periphery of the filter press tank 110, which can also heat the filter press tank 110. No specific restrictions are made on the structure of the heating component 120 herein.

[0077] like Figure 4 and Figure 5 As shown, in one embodiment, the filter element 141 includes a frame 1411, a first filter plate 1412, a second filter plate 1413 and a partition 1414. The first filter plate 1412 and the second filter plate 1413 each have a plurality of filter holes 1416, and are respectively connected to the inner circumference of the frame 1411. The first filter plate 1412, the second filter plate 1413 and the frame 1411 jointly define a liquid collecting chamber 1415. The partition 1414 is arranged in the liquid collecting chamber 1415 and is located between the first filter plate 1412 and the second filter plate 1413.

[0078] In this embodiment, since the first filter plate 1412 and the second filter plate 1413 both have a plurality of filter holes 1416 and are respectively connected to the inner circumference of the frame 1411, the squeezed sulfur slag can be filtered through the first filter plate 1412 and the second filter plate 1413. The partition 1414 is located between the first filter plate 1412 and the second filter plate 1413, which can enhance the strength of the first filter plate 1412 and the second filter plate 1413, and limit the excessive deformation of the two due to squeezing by the sulfur slag, thereby avoiding damage caused by direct contact between the two.

[0079] Furthermore, the filter element 141 further includes a first metal wire mesh and a second metal wire mesh, wherein the first metal wire mesh is attached to the side of the first filter plate 1412 away from the second filter plate 1413, and the second metal wire mesh is attached to the side of the second filter plate 1413 away from the first filter plate 1412. At the same time, since diatomaceous earth has a mesh size of about 80, the mesh size of the metal wire mesh can be selected to be above 80. Thus, by configuring the metal wire mesh and cooperating with the plurality of filter holes 1416, the diatomaceous earth can be effectively intercepted and the liquid sulfur can be filtered.

[0080] Of course, for the above embodiment, the filter element 141 can also be composed of a frame 1411 and a filter net, and the filter net has multiple filter holes 1416, which can also filter and collect sulfur slag. No specific restrictions are made on the structure of the filter element 141.

[0081] like Figure 4 and Figure 5 As shown, in one embodiment, a discharge port 113 connected to the extrusion chamber 111 is provided on the filter press tank 110, and the feed port 112 and the discharge port 113 are respectively located on the outer peripheral side of the filter press tank 110, and the feed port 112 and the discharge port 113 are arranged far away from each other in the extrusion direction of the extrusion member 130, and the liquid outlet component 140 is located between the feed port 112 and the discharge port 113.

[0082] In the present embodiment, since the feed port 112 and the discharge port 113 are arranged far apart from each other in the extrusion direction of the extrusion piece 130, and the liquid outlet assembly 140 is located between the feed port 112 and the discharge port 113, this can prevent the sulfur slag from entering the extrusion chamber 111 from the feed port 112 and then taking a shortcut to be discharged from the discharge port 113 under the extrusion of the extrusion piece 130, thereby increasing the time that the sulfur slag is filtered in the extrusion chamber 111 and improving the filtering effect on the sulfur slag.

[0083] In summary, the working principle of the recovery device 100 provided in the embodiment of the present application is as follows: sulfur slag is input into the extrusion chamber 111 through the feed port 112, hot air is input into the heating chamber 1211 through the heat inlet pipe 122, and the hot air in the heating chamber 1211 is output by the heat outlet pipe 123, so that the filter press 110 heats the sulfur slag, so that the sulfur in the diatomaceous earth and solid impurities is converted into liquid sulfur, the extrusion member 130 extrude the heated sulfur slag along its extrusion direction, the first filter plate 1412 and the second filter plate 1413 filter the extruded sulfur slag, and the liquid sulfur filtered out is gathered in each liquid collecting chamber 1415 and output through each liquid outlet pipe 142, and finally gathered in the manifold 171 for collection, so that the recovery of liquid sulfur free in the diatomaceous earth and solid impurities is completed, and then the sulfur slag after filtering is discharged through the discharge port 113, and the next batch of sulfur slag is filtered out.

[0084] It should be noted that after the liquid sulfur is recovered, the sulfur slag that has been filtered can be further heated and sublimated for recovery. During the heating and sublimation recovery process, since most of the free liquid sulfur has been recovered by filtering, the remaining sulfur can be recovered without consuming too much heat source.

[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: The filter press tank (110) has an extrusion chamber (111) and is provided with a feed port (112) connected to the extrusion chamber (111), wherein the feed port (112) is used to fill sulfur slag into the extrusion chamber (111); A heating component (120) is disposed on the outer peripheral side of the filter press tank (110) and is used to heat the filter press tank (110); An extrusion member (130) is disposed at one end of the extrusion chamber (111) and is used to extrude the sulfur slag; The liquid outlet assembly (140) comprises a filter element (141) and a liquid outlet pipe (142); the filter element (141) is arranged at one end of the extrusion chamber (111) away from the extrusion element (130); the filter element (141) defines a liquid collecting chamber (1415) and is provided with a plurality of filter holes (1416) in communication with the extrusion chamber (111); the liquid outlet pipe (142) is passed through the outer peripheral side of the filter press tank (110) and is connected to the filter element (141); the interior of the liquid outlet pipe (142) is in communication with the liquid collecting chamber (1415).

2. The recovery device according to claim 1, characterized in that: The extrusion member (130) is a push plate (131), and the push plate (131) is slidably disposed in the extrusion chamber (111). The recovery device further comprises a driving component (150), and the driving component (150) is connected to a side of the push plate (131) away from the liquid outlet component (140), and is used to drive the push plate (131) to move in a direction close to or away from the liquid outlet component (140); or The extrusion member (130) is an air pipe (132), and the air pipe (132) is fixedly arranged at the end of the filter press tank (110) and is capable of inputting gas for extruding the sulfur slag into the extrusion chamber (111).

3. The recovery device according to claim 2, characterized in that: The filter press tank (110) is provided with a vacuum breaking port, which is located on a side of the push plate (131) away from the filter element (141) and is in communication with the extrusion chamber (111).

4. The recovery device according to claim 1, characterized in that: The liquid outlet assembly (140) further comprises a sleeve clamp (143), wherein the sleeve clamp (143) comprises a plate sleeve (1431) and a cover plate (1432); the plate sleeve (1431) is connected to the outer peripheral side of the filter press tank (110) and defines a receiving chamber (1433) adapted to the outer shape of the filter element (141); the receiving chamber (1433) is communicated with the extrusion chamber (111); an opening (1434) communicating with the receiving chamber (1433) is provided on a side of the plate sleeve (1431) away from the extrusion chamber (111); the cover plate (1432) is detachably connected to the plate sleeve (1431) and is used to close the opening (1434); a portion of the liquid outlet pipe (142) away from the filter element (141) is arranged to pass through the receiving chamber (1433) and is connected to the cover plate (1432).

5. The recovery device according to claim 4, characterized in that: The sleeve clamp (143) further comprises a baffle (1435), wherein the baffle (1435) is located in the accommodating cavity (1433), and the outer peripheral side of the baffle (1435) is in contact with the inner wall of the plate sleeve (1431), and the liquid outlet pipe (142) is arranged through the baffle (1435) and is fixedly connected to the baffle (1435).

6. The recovery device according to claim 4, characterized in that: The liquid outlet assembly (140) further comprises a limiting plate (144); a limiting groove (114) is provided on the inner side wall of the filter press tank (110); the limiting plate (144) is connected to a side of the filter element (141) away from the plate sleeve (1431) and is used for being inserted into the limiting groove (114).

7. The recovery device according to claim 4, characterized in that: The recovery device further comprises a lifting assembly (160) and a manifold (171); a plurality of the liquid outlet assemblies (140) are provided, and the plurality of the liquid outlet assemblies (140) are spaced apart along the extrusion direction of the extrusion member (130); the liquid outlet pipe (142) of each of the liquid outlet assemblies (140) is connected to the manifold (171); the lifting assembly (160) is connected to the manifold (171) and is used to drive the liquid outlet assembly (140) to move along a preset direction, wherein the preset direction is perpendicular to the extrusion direction of the extrusion member (130).

8. The recovery device according to any one of claims 1 to 7, characterized in that: The heating assembly (120) comprises a heat-insulating sleeve (121), a heat-inlet pipe (122) and a heat-outlet pipe (123); the heat-insulating sleeve (121) is arranged around the outer circumference of the filter press tank (110); the heat-insulating sleeve (121) and the outer circumference of the filter press tank (110) jointly define a heating chamber (1211); the heat-inlet pipe (122) and the heat-outlet pipe (123) are respectively arranged through the heat-insulating sleeve (121) and are respectively connected to the heating chamber (1211); the heat-inlet pipe (122) is used to input hot air into the heating chamber (1211).

9. The recovery device according to any one of claims 1 to 7, characterized in that: The filter element (141) includes a frame (1411), a first filter plate (1412), a second filter plate (1413) and a partition (1414); the first filter plate (1412) and the second filter plate (1413) both have a plurality of filter holes (1416) and are respectively connected to the inner circumference of the frame (1411); the first filter plate (1412), the second filter plate (1413) and the frame (1411) jointly define the liquid collecting chamber (1415); the partition (1414) is arranged in the liquid collecting chamber (1415) and is located between the first filter plate (1412) and the second filter plate (1413).

10. The recovery device according to any one of claims 1 to 7, characterized in that: The filter press tank (110) is provided with a discharge port (113) which is in communication with the extrusion chamber (111); the feed port (112) and the discharge port (113) are respectively located on the outer peripheral side of the filter press tank (110); the feed port (112) and the discharge port (113) are arranged to be spaced apart from each other in the extrusion direction of the extrusion member (130); and the liquid outlet assembly (140) is located between the feed port (112) and the discharge port (113).

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