A method for treating chemical waste

Abstract

The application provides a chemical waste treatment method and relates to the technical field of chemical equipment, which solves the technical problems of difficulty in processing waste liquid and difficulty in waste treatment. The chemical waste treatment method comprises the following steps: feeding the to-be-treated material into a spiral dryer, heating the to-be-treated material by steam or heat-conducting oil; introducing the material residue generated in the spiral dryer into a material residue collecting device; introducing the steam generated in the spiral dryer into a filtering device for filtration, so that the filtered steam enters a condenser for condensation; and introducing the condensed liquid into a liquid collecting device under the driving of a vacuum pump. The chemical waste treatment method can perform secondary treatment on concentrated chemical waste liquid, evaporate the concentrated chemical waste liquid further through the spiral dryer, condense the gas further, and recycle the treated liquid and solid.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and in particular to a method for treating chemical waste. Background Technology

[0002] Current technologies for treating chemical waste mainly employ methods such as incineration followed by landfill and biological treatment. However, incineration followed by landfill is prone to causing secondary pollution, while biological treatment is costly and slow.

[0003] The applicant has discovered that the prior art has at least the following technical problems: There are some devices in the prior art for treating chemical waste, but they cannot effectively treat the waste liquid generated during the treatment process. Due to the concentration of the waste, the concentrated liquid is rich in a large amount of insoluble matter, suspended solids and organic matter, and conventional evaporation is difficult to further concentrate and evaporate the concentrated liquid. Summary of the Invention

[0004] The purpose of this invention is to provide a method for treating chemical waste, thereby solving the technical problems of difficulty in further processing waste liquid and the difficulty in waste disposal in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention provides a method for treating chemical waste, which includes: feeding the material to be treated into a spiral dryer and heating the material to be treated with steam or heat transfer oil; introducing the slag generated in the spiral dryer into a slag collection device; filtering the steam generated in the spiral dryer into a filter device, and condensing the filtered steam in a condenser; and introducing the condensed liquid into a liquid collection device driven by a vacuum pump.

[0007] Preferably, the processing method further includes:

[0008] The liquid in the liquid collection device is tested, and if it passes the test, it is passed into the next stage of the treatment system.

[0009] The slag in the slag collection device is fed into the incinerator, and the incinerated material is then landfilled or placed in a cement kiln.

[0010] Preferably, the spiral dryer includes a shell, a rotating shaft, blades, a first disturbance part, and a second disturbance part, wherein:

[0011] The rotating shaft is rotatably connected to the shell, the blades are fixedly arranged on the outer wall of the rotating shaft, the first disturbing part is arranged between adjacent blades, the first disturbing part is provided with a first through hole, the rotating shaft passes through the first through hole and can rotate in the first through hole;

[0012] The second disturbing part is located on the side of the first end blade and / or the last end blade away from the remaining blades, the rotating shaft is provided with two or more, and the second disturbing part is provided with at least a second through hole for respectively passing through two adjacent rotating shafts.

[0013] When the rotating shaft rotates, the first disturbing part and the second disturbing part are used to scrape off the material adhered to the inner wall of the shell and the blades.

[0014] Preferably, the first disturbing part and the second disturbing part are the same structure, the plane where the first disturbing part is arranged is parallel to the axis of the rotating shaft, and the plane where the second disturbing part is arranged is perpendicular to the axis of the rotating shaft.

[0015] The first disturbing part is a U-shaped structure, and the first through hole is arranged in the vertical section of the U-shaped structure; the second disturbing part is a U-shaped structure, and the second through hole is arranged in the vertical section of the U-shaped structure.

[0016] Preferably, the screw dryer further comprises a shaft sleeve assembly, the shaft sleeve assembly is sleeved on the rotating shaft, the shaft sleeve assembly is provided with a fluid channel, the fluid channel surrounds the rotating shaft, and the fluid channel is used for flowing cooling fluid.

[0017] Preferably, the shaft sleeve assembly comprises an inner rotating sleeve and an outer sleeve body, and the inner rotating sleeve and the outer sleeve body are fixedly provided with mechanical seals.

[0018] The annular mounting groove is provided on the inner rotating sleeve, the central axis of the annular mounting groove is arranged in line with the central axis of the inner rotating sleeve, and the inner and outer circumferential walls of the annular mounting groove are respectively provided with a first inner thread part and a second inner thread part.

[0019] The outer sleeve body is provided with an insertion part, the opposite sides of the insertion part are respectively provided with a first outer thread part and a second outer thread part, the rotation directions of the first outer thread part and the second outer thread part are opposite, when the outer sleeve body is sleeved outside the inner rotating sleeve, the insertion part extends into the annular mounting groove, and the first outer thread part is connected with the first inner thread part, and the second outer thread part is connected with the second inner thread part.

[0020] Preferably, the mechanical seal comprises a first sealing part and a second sealing part for sealing with the rotating shaft, the first sealing part is fixed to one end of the inner rotating sleeve away from the outer sleeve body, and the second sealing part is fixed to one end of the outer sleeve body away from the inner rotating sleeve.

[0021] Preferably, the outer sleeve body is provided with a lock catch assembly, the inner rotating sleeve is provided with a lock hole, the lock catch assembly comprises a lock tongue, the lock tongue is inserted into the lock hole and locks the inner rotating sleeve with the outer sleeve body, and the lock catch assembly is pressed, the lock tongue can be separated from the lock hole.

[0022] Preferably, the lock catch assembly comprises a lock block, a pressing block located on the lock block, an elastic force arm, a traction spring, a connecting plate and a lock tongue, wherein:

[0023] The lock block is fixed to the outer sleeve body, the lock block is provided with a mounting groove, the lower part of the pressing block is located in the mounting groove, the free end of the elastic force arm is fixedly connected with the lower end of the pressing block, the two ends of the traction spring are fixedly connected with the free end of the elastic force arm and the connecting plate respectively, the connecting plate is connected with the lock tongue, and the pressing block can drive the free end of the elastic force arm to move under the pressing of external force, so that the lock tongue is separated from the lock hole;

[0024] The free end of the elastic force arm is fixed with an abutting plate, the abutting plate abuts against the lower end of the pressing block, and the abutting plate is in sliding connection with the mounting groove.

[0025] Preferably, a first reset spring is arranged in the pressing block, the lower end of the first reset spring is fixedly connected with the abutting plate, and the first reset spring acts to reset the pressing block; a second reset spring is fixed in the lock block, the second reset spring is horizontally arranged and fixedly connected with the connecting plate, and is used to push the connecting plate and the lock tongue to reset.

[0026] Compared with the prior art, the chemical waste treatment method has the following beneficial effects: the to-be-treated material is introduced into the spiral dryer, the spiral dryer heats the to-be-treated material, the generated steam is filtered and condensed and then introduced into the liquid collecting device, so as to facilitate subsequent utilization, the generated residue is introduced into the residue collecting device for collection and can be incinerated or stored; the chemical waste treatment method can perform secondary treatment on the concentrated chemical waste liquid, so that the chemical waste liquid is further evaporated by the spiral dryer and the gas is further condensed, and the treated liquid and solid can be recycled. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0028] Figure 1 is a structural schematic diagram of the cooperation of the first disturbance part with the rotating shaft and the blade;

[0029] Figure 2 is a structural schematic diagram of the cooperation of the second disturbance part with the rotating shaft and the blade;

[0030] Figure 3 is a structural schematic diagram of the cooperation of the inner rotating sleeve with the outer sleeve body;

[0031] Figure 4 is a structural schematic diagram of the cooperation of the inner rotating sleeve with the outer sleeve body after being separated;

[0032] Figure 5 is a structural schematic diagram of the lock catch assembly;

[0033] Figure 6 is a structural schematic diagram of the cooperation of the elastic force arm, the traction spring and the connecting plate.

[0034] In the figure, 100 is an outer shell, 1 is a rotating shaft, 2 is a blade, 3 is a first disturbance part, 31 is a first through hole, 4 is a second disturbance part, 41 is a second through hole, 51 is an inner rotating sleeve, 511 is an annular mounting groove, 512 is a first inner threaded part, 513 is a second inner threaded part, 52 is an outer sleeve body, 521 is an insertion part, 522 is a first outer threaded part, 523 is a second outer threaded part, 53 is a first sealing part, 54 is a second sealing part, 55 is a fluid passage, 6 is a lock catch assembly, 61 is a lock and block, 611 is a mounting groove, 62 is a pressing block, 63 is an elastic force arm, 64 is a traction spring, 65 is a connecting plate, 66 is a lock tongue, 67 is a pushing plate, 68 is a first reset spring, and 69 is a second reset spring. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0037] The chemical waste treatment method provided by the embodiment of the present application can further evaporate the treated material through the screw dryer, further condense the gas, and recycle the liquid and solid after treatment.

[0038] The technical solutions provided by the present application will be described in detail below. Figures 1-6 The technical solutions provided by the present application will be described in detail below.

[0039] As shown in the drawings, the present embodiment provides a chemical waste treatment method, which comprises the following steps: Figures 1-6 The chemical waste treatment method provided by the embodiment of the present application can further evaporate the treated material through the screw dryer, further condense the gas, and recycle the liquid and solid after treatment.

[0040] The chemical waste treatment method provided by the embodiment of the present application can further evaporate the treated material through the screw dryer, further condense the gas, and recycle the liquid and solid after treatment.

[0041] As an optional implementation, the treatment method further comprises: detecting the liquid in the liquid collecting device, and passing the liquid into the next disposal system after passing the detection; the recycling of the liquid can be realized; the residue in the residue collecting device is passed into a incinerator, and the incinerated material is landfilled or cement kiln. Alternatively, if the residue can be reused, the residue in the residue collecting device can be reused.

[0042] The screw dryer used in the chemical waste treatment method of the present embodiment has the following structure:

[0043] Example 1

[0044] like Figures 1-2 As shown, Figure 1 The image shown is a frontal view inside the casing. Figure 2 The image shows a side view inside the outer casing. This embodiment provides a spiral dryer, including an outer casing 100, a rotating shaft 1, blades 2, a first disturbance part 3, and a second disturbance part 4. The rotating shaft 1 is rotatably connected inside the outer casing 100, the blades 2 are fixedly disposed on the outer wall of the rotating shaft 1, the first disturbance part 3 is disposed between adjacent blades 2, the first disturbance part 3 is provided with a first through hole 31, the rotating shaft 1 passes through the first through hole 31 and can rotate within the first through hole 31; the second disturbance part 4 is located on the side of the first and / or last blades 2 away from the other blades 2, there are two or more rotating shafts 1, and the second disturbance part 4 is provided with at least a second through hole 41 for two adjacent rotating shafts 1 to pass through respectively; when the rotating shaft 1 rotates, the first disturbance part 3 and the second disturbance part 4 are used to scrape off the material adhering to the blades 2 and the inner wall of the outer casing 100.

[0045] In this embodiment of the spiral dryer, the rotating shaft 1 can pass through the first through hole 31 on the first disturbance part 3 and the second through hole 41 on the second disturbance part 4. The first disturbance part 3 and the second disturbance part 4 do not affect the rotation of the rotating shaft 1, and can scrape off the material on the blades 2 and the inner wall of the outer shell 100 when the rotating shaft 1 rotates, preventing the material from accumulating in large quantities on the blades 2 and the inner wall of the outer shell 100, ensuring normal material conveying and normal heating of the material; at the same time, the first disturbance part 3 and the second disturbance part 4 can prevent axial deformation of the rotating shaft 1 and improve the service life of the spiral dryer.

[0046] As an optional implementation, see Figure 1 and Figure 2 As shown, the first disturbance part 3 and the second disturbance part 4 have the same structure. The plane where the first disturbance part 3 is located is parallel to the axis of the rotating shaft 1, and the plane where the second disturbance part 4 is located is perpendicular to the axis of the rotating shaft 1.

[0047] The first disturbance part 3 can be located between adjacent blades 2 to scrape off the material adhering to the blades 2. The second disturbance part 4 can be located at the end of the rotating shaft 1 to scrape off the material on the blades 2, while also preventing the rotating shaft 1 from deforming.

[0048] As an optional implementation, see Figure 1 and Figure 2 As shown, the first disturbance part 3 has a U-shaped structure, and the first through hole 31 is provided in the vertical section of the U-shaped structure; the second disturbance part 4 has a U-shaped structure, and the second through hole 41 is provided in the vertical section of the U-shaped structure.

[0049] The first disturbing part 3 and the second disturbing part 4 of the above structure do not affect the rotation of the rotating shaft 1, and can prevent the rotating shaft 1 from being axially deformed.

[0050] Embodiment two

[0051] In the prior art, the rotating shaft 1 is sleeved with a shaft sleeve, and mechanical seals are arranged between the two ends of the rotating shaft 1 and the drying machine shell 100. Long-time work of the rotating shaft 1 can cause the mechanical seals to wear, thereby affecting the sealing effect between the rotating shaft 1 and the shell 100.

[0052] To solve the above problems, in the embodiment, as shown in Figure 3 , the screw drying machine further comprises a shaft sleeve assembly, the shaft sleeve assembly is sleeved on the rotating shaft 1, the shaft sleeve assembly is internally provided with a fluid passage 55, the fluid passage 55 surrounds the rotating shaft 1, and the fluid passage 55 is used for flowing cooling fluid.

[0053] The fluid passage 55 can be filled with cooling water or other cooling liquid. The cooling water flowing in the fluid passage 55 can timely cool the rotating shaft 1, thereby preventing the rotating shaft 1 from being too high in temperature.

[0054] As an optional implementation, as shown in Figure 3 , the fluid passage 55 is formed on the inner rotating sleeve 51 and has an annular structure. The fluid passage 55 of this structure can better surround the rotating shaft 1, thereby further improving the cooling effect on the rotating shaft 1.

[0055] To prevent the mechanical seals from wearing and falling off the rotating shaft 1, and to solve the problem of poor sealing effect, as an optional implementation, as shown in Figures 3-5 , the shaft sleeve assembly in the embodiment comprises an inner rotating sleeve 51 and an outer sleeve body 52, and the inner rotating sleeve 51 and the outer sleeve body 52 are both fixed with mechanical seals. The inner rotating sleeve 51 is provided with an annular mounting groove 511, the central axis of the annular mounting groove 511 is arranged in line with the central axis of the inner rotating sleeve 51, and the inner peripheral wall and the outer peripheral wall of the annular mounting groove 511 are respectively provided with a first inner threaded part 512 and a second inner threaded part 513. The outer sleeve body 52 is provided with an insertion part 521, the opposite sides of the insertion part 521 are respectively provided with a first outer threaded part 522 and a second outer threaded part 523, the rotation directions of the first outer threaded part 522 and the second outer threaded part 523 are opposite, and when the outer sleeve body 52 is sleeved outside the inner rotating sleeve 51, the insertion part 521 extends into the annular mounting groove 511, the first outer threaded part 522 is connected with the first inner threaded part 512, and the second outer threaded part 523 is connected with the second inner threaded part 513.

[0056] As shown in Figure 3 , Figure 4 and Figure 5As shown, when the inner rotating sleeve 51 and the outer sleeve body 52 are installed, the insertion part 521 of the outer sleeve body 52 is screwed into the annular installation groove 511, the first outer thread part 522 is connected with the first inner thread part 512, and the second outer thread part 523 is connected with the second inner thread part 513. Since the rotation directions of the first outer thread part 522 and the second outer thread part 523 are opposite, and the rotation directions of the first inner thread part 512 and the second inner thread part 513 are opposite, when the rotating shaft 1 rotates forward or reversely, the inner rotating sleeve 51 rotates with the rotating shaft 1, and there is always the first inner thread part 512 or the second inner thread part 513 connected with the outer sleeve body 52, so that the shaft sleeve assembly cannot be detached from the rotating shaft 1 due to inertia, and at the same time, since the mechanical seal is located outside the outer sleeve body 52 and the inner rotating sleeve 51, it is ensured that the mechanical seal cannot be detached from the rotating shaft 1, and the sealing performance is ensured.

[0057] As an optional embodiment, the mechanical seal comprises a first sealing part 53 and a second sealing part 54 for sealing with the rotating shaft 1. The first sealing part 53 is fixed to one end of the inner rotating sleeve 51 away from the outer sleeve body 52, and the second sealing part 54 is fixed to one end of the outer sleeve body 52 away from the inner rotating sleeve 51.

[0058] The first sealing part 53 is located in the inner rotating sleeve 51, and the second sealing part 54 is located in the outer sleeve body 52. With the rotation of the rotating shaft 1, the inner rotating sleeve 51 and the outer sleeve body 52 rotate more tightly, thereby preventing the first sealing part 53 and the second sealing part 54 from being detached from the rotating shaft 1.

[0059] The mechanical seal structure is a mature technology and can be directly purchased from the market, and its structure is not described here. The rotating shaft 1 can pass through one end of the shaft sleeve assembly and be connected with a motor, a speed reducer, etc.

[0060] Embodiment two

[0061] Referring to Figure 3 As shown, the outer sleeve body 52 is provided with a lock assembly 6, and the inner rotating sleeve 51 is provided with a lock hole. The lock assembly 6 comprises a lock tongue 66 which is inserted into the lock hole and locks the inner rotating sleeve 51 and the outer sleeve body 52. When the lock assembly 6 is pressed, the lock tongue 66 can be separated from the lock hole.

[0062] The above-mentioned lock assembly 6 can fix the outer sleeve body 52 and the inner rotating sleeve 51, and further prevent them from being detached. When the lock assembly 6 is pressed and the lock tongue 66 is separated from the lock hole, the outer sleeve body 52 and the inner rotating sleeve 51 can be separated, and the internal mechanical seal can be replaced.

[0063] As an optional embodiment, referring to Figure 5 and Figure 6As shown in the figure, the lock assembly 6 comprises a lock block 61, a pressing block 62, an elastic force arm 63, a traction spring 64, a connecting plate 65 and a lock tongue 66, wherein: the lock block 61 is fixed on the outer sleeve body 52, the lock block 61 is provided with a mounting groove 611, the lower part of the pressing block 62 is located in the mounting groove 611, the free end of the elastic force arm 63 is fixedly connected with the lower end of the pressing block, the two ends of the traction spring 64 are fixedly connected with the free end of the elastic force arm 63 and the connecting plate 65 respectively, the connecting plate 65 is connected with the lock tongue 66, the pressing block can drive the free end of the elastic force arm 63 to move under the action of external force, so as to drive the lock tongue 66 to disengage from the lock hole; the free end of the elastic force arm 63 is fixedly connected with a pushing plate 67, the pushing plate 67 abuts against the lower end of the pressing block, and the pushing plate 67 is slidably connected with the mounting groove 611.

[0064] As shown in the figure, Figure 5 and Figure 6 As shown in the figure, Figure 6 The direction of the dashed arrow in the figure represents the moving direction of the elastic force arm 63, and the direction of the solid arrow represents the moving direction of the connecting plate 65. The elastic force arm 63 can move under the action of external force, and specifically, the elastic force arm 63 can be a torsion arm of a torsion spring.

[0065] When the pressing block 62 is pressed downward, the pressing block 62 moves downward, drives the elastic force arm 63 to move in the direction of the dashed arrow in the figure through the pushing plate 67, and the free end of the elastic force arm 63 pulls the connecting plate 65 to slide horizontally in the lock block 61 through the traction spring 64, and the connecting plate 65 drives the lock tongue 66 to enter the lock block 61, so as to be separated from the lock hole on the inner rotating sleeve 51. Figure 6

[0066] As an optional embodiment, as shown in the figure, Figure 5 and Figure 6 The first reset spring 68 is arranged in the pressing block 62, the lower end of the first reset spring 68 is fixedly connected with the pushing plate 67, and the first reset spring 68 acts on the pressing block 62 to reset it; the second reset spring 69 is fixedly arranged in the lock block 61, the second reset spring 69 is arranged horizontally and is fixedly connected with the connecting plate 65, and is used to push the connecting plate 65 and the lock tongue 66 to reset.

[0067] When it is needed to reconnect the outer sleeve body 52 and the inner rotating sleeve 51, the pressing block 62 is pressed downward, the lock tongue 66 is separated from the lock hole, the outer sleeve body 52 is screwed with the inner rotating sleeve 51, the external force acting on the pressing block 62 disappears, the elastic force arm 63 resets, the first reset spring 68 drives the pressing block 62 to reset, the elastic restoring force of the second reset spring 69 drives the connecting plate 65 to return to the original position, the lock tongue 66 is pulled out and reinserted into the lock hole, and the outer sleeve body 52 and the inner rotating sleeve 51 are relocked.

[0068] ​In the description of the specification, specific features, structures, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0069] In the description of the specification, the description referring 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 connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0070] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for treating chemical waste, characterized by, The processing method comprises: feeding the material to be processed into a spiral dryer, and heating the material to be processed by steam or heat conducting oil; introducing the material residue generated in the spiral dryer into a material residue collecting device; introducing the steam generated in the spiral dryer into a filtering device for filtering, and introducing the filtered steam into a condenser for condensation; and introducing the condensed liquid into a liquid collecting device under the driving of a vacuum pump; the spiral dryer comprises a shell, a rotating shaft, a blade, a first disturbance part and a second disturbance part, wherein: the rotating shaft is rotationally connected to the shell, the blade is fixedly arranged on the outer wall of the rotating shaft, the first disturbance part is arranged between adjacent blades, the first disturbance part is provided with a first through hole, the rotating shaft passes through the first through hole and can rotate in the first through hole; the second disturbance part is located on the side of the first end and / or the last end blade away from the remaining blades, the rotating shaft is provided with two or more, and the second disturbance part is provided with at least a second through hole for respectively passing through two adjacent rotating shafts; when the rotating shaft rotates, the first disturbance part and the second disturbance part are used to scrape off the material adhered to the inner wall of the blade and the shell; the spiral dryer further comprises a shaft sleeve assembly, the shaft sleeve assembly is sleeved on the rotating shaft, a fluid channel is arranged in the shaft sleeve assembly, the fluid channel surrounds the rotating shaft, and the fluid channel is used for flowing of cooling fluid; the shaft sleeve assembly comprises an inner rotating sleeve and an outer sleeve body, and mechanical seals are fixed in the inner rotating sleeve and the outer sleeve body, wherein: an annular mounting groove is arranged on the inner rotating sleeve, the central axis of the annular mounting groove is arranged in line with the central axis of the inner rotating sleeve, and first and second internal thread parts are arranged on the inner and outer circumferential walls of the annular mounting groove, respectively; an insertion part is arranged on the outer sleeve body, first and second external thread parts are arranged on opposite sides of the insertion part, respectively, the rotation directions of the first and second external thread parts are opposite, when the outer sleeve body is sleeved outside the inner rotating sleeve, the insertion part extends into the annular mounting groove, and the first external thread part is connected with the first internal thread part, and the second external thread part is connected with the second internal thread part.

2. The chemical waste treatment method according to claim 1, characterized by, the processing method further comprises: detecting the liquid in the liquid collecting device, and feeding the liquid into a next disposal system after passing the detection; feeding the material residue in the material residue collecting device into an incinerator, and landfilling or cement kiln of the incinerated material.

3. The chemical waste treatment method according to claim 1, characterized by, the first disturbance part and the second disturbance part are of the same structure, the plane where the first disturbance part is arranged is arranged in parallel with the axis of the rotating shaft, and the plane where the second disturbance part is arranged is arranged perpendicular to the axis of the rotating shaft; the first disturbance part is of a U-shaped structure, and the first through hole is arranged on the vertical section of the U-shaped structure; the second disturbance part is of a U-shaped structure, and the second through hole is arranged on the vertical section of the U-shaped structure.

4. The chemical waste treatment method according to claim 1, characterized by, The mechanical seal comprises a first sealing part and a second sealing part for sealing with the rotating shaft, the first sealing part is fixed to one end of the inner rotating sleeve away from the outer sleeve body, and the second sealing part is fixed to one end of the outer sleeve body away from the inner rotating sleeve.

5. The chemical waste treatment method according to claim 1, wherein The outer sleeve body is provided with a lock assembly, the inner rotating sleeve is provided with a lock hole, the lock assembly comprises a lock tongue, the lock tongue is inserted into the lock hole and locks the inner rotating sleeve with the outer sleeve body, the lock assembly is pressed, and the lock tongue can be separated from the lock hole.

6. The chemical industrial waste treatment method according to claim 5, wherein The lock assembly comprises a lock block, a pressing block, an elastic force arm, a traction spring, a connecting plate and a lock tongue arranged on the lock block, wherein: The lock block is fixed to the outer sleeve body, the lock block is provided with a mounting groove, the lower part of the pressing block is located in the mounting groove, the free end of the elastic force arm is fixedly connected with the lower end of the pressing block, the two ends of the traction spring are respectively fixedly connected with the free end of the elastic force arm and the connecting plate, the connecting plate is connected with the lock tongue, and the pressing block can drive the free end of the elastic force arm to move under the external force pressing, so that the lock tongue is separated from the lock hole; The free end of the elastic force arm is fixedly connected with a push plate, the push plate abuts against the lower end of the pressing block, and the push plate is slidably connected with the mounting groove.

7. The chemical industrial waste treatment method according to claim 6, wherein A first reset spring is arranged in the pressing block, the lower end of the first reset spring is fixedly connected with the push plate, and the first reset spring acts on the reset of the pressing block; a second reset spring is fixedly arranged in the lock block, the second reset spring is horizontally arranged and fixedly connected with the connecting plate, and is used for pushing the connecting plate and the lock tongue to reset.

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