A device for recovering hydrogen chloride from dichlorobenzene by-product

Abstract

The present invention belongs to the field of chemical technology, and discloses a device for recycling hydrogen chloride in a dichlorobenzene byproduct, comprising a fixed shell, a fixed assembly fixedly installed on one side of the fixed shell, a first connecting pipe fixedly installed on the top of the fixed assembly, a driving motor fixedly installed on the bottom of the fixed shell, and a mixing assembly fixedly connected to the output end of the driving motor located in the inner cavity of the fixed shell. The present invention achieves the effect of quantitatively adding concentrated sulfuric acid through the coordination of structures such as connecting gears and transmission belt settings, the transmission belt drives the connecting gear to rotate, so that the threaded rod drives the C-shaped plate to move upward, and the C-shaped plate drives the rectangular plate to move upward, so that the rectangular plate pushes the movable column of the reagent holding unit to quantitatively squeeze the concentrated sulfuric acid in the reagent holding unit holding barrel into the first connecting pipe and flow to the top of the fixed member, thereby reducing the error of the concentrated sulfuric acid.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical industry, and in particular is a device for recovering and utilizing hydrogen chloride from a dichlorobenzene byproduct. Background Art

[0002] During the chlorination reaction of dichlorobenzene, byproducts often include hydrogen chloride gas or hydrochloric acid. Hydrogen chloride, with the chemical formula HCl, consists of a hydrogen chloride molecule consisting of a chlorine atom and a hydrogen atom. Hydrogen chloride is easily soluble in water and alcohol, and can also be soluble in ether. Its aqueous solution is called hydrochloric acid, also known as hydrochloric acid. Under standard conditions, one volume of water can dissolve about 500 volumes of hydrogen chloride, and it is a colorless, irritating, corrosive and asphyxiating gas. Hydrogen chloride waste gas is highly corrosive to the environment and equipment, harmful to the human body, and irritates the skin and respiratory tract of the human body.

[0003] During the chlorination reaction process, dichlorobenzene plants often produce hydrogen chloride gas or hydrochloric acid as by-products. During the production process, about 50,000 tons of hydrochloric acid are produced as by-products at a rate of 28% per year. Since this hydrochloric acid contains some organic matter, it cannot be used directly and requires additional treatment. When it is dried, concentrated sulfuric acid solution is generally measured manually and added to the hydrochloric acid to react with the hydrochloric acid. There are certain errors in manual measurement, and a lot of time and effort are required when adding hydrochloric acid. When pouring, part of the concentrated sulfuric acid adheres to the inner wall and cannot be poured out, which further increases the error. Therefore, it needs to be improved. Summary of the invention

[0004] In order to solve the problem that manual measurement has certain errors, a lot of time and effort are needed to add hydrochloric acid, and part of the measured concentrated sulfuric acid adheres to the inner wall when pouring and cannot be poured out, thereby further increasing the error, the present invention provides a device for recovering hydrogen chloride from dichlorobenzene by-product.

[0005] To achieve the above-mentioned object, the present invention provides the following technical scheme: a device for recovering hydrogen chloride from a dichlorobenzene by-product, comprising a fixed shell, a fixed assembly is fixedly installed on one side of the fixed shell, a first connecting pipe is fixedly installed on the top of the fixed assembly, a driving motor is fixedly installed on the bottom of the fixed shell, a mixing assembly located in the inner cavity of the fixed shell is fixedly connected to the output end of the driving motor, a second connecting pipe and a third connecting pipe are fixedly connected to the side of the mixing assembly away from the fixed assembly, a connecting assembly is fixedly installed on the bottom of the inner cavity of the fixed shell, and an air outlet pipe is arranged on one side of the connecting assembly;

[0006] Wherein, the fixed assembly includes a reagent holding unit, a rectangular plate is fixedly installed at the bottom of the reagent holding unit, a C-shaped plate is fixedly installed on one side of the rectangular plate, a threaded rod is provided on one side of the C-shaped plate, and the outer side of the threaded rod is threadedly connected with a connecting gear;

[0007] The mixing assembly comprises a stirring rod, a fixing piece is fixedly mounted on the top of the stirring rod, and the fixing piece is in a truncated cone shape;

[0008] The connection assembly includes a connection plate, a drying box and a second heat preservation box are fixedly installed on the top of the inner cavity of the fixed shell, a movable block is movably connected to the lower end of the inner cavity of the second heat preservation box, and a connecting shaft is fixedly installed on the bottom of the movable block.

[0009] Preferably, a transmission belt is provided at the upper end of the driving motor, a movable column is provided at one side of the bottom of the fixed shell near the reagent containing unit and is connected with the transmission belt, and an outer wall of the transmission belt is provided with indirect teeth and meshed with the connecting gear.

[0010] Preferably, the fixed shell is elastically connected to the rectangular plate via a first spring telescopic rod, a slide groove is provided at the lower end of the fixed shell, and slide bars are provided on both sides of the C-shaped plate.

[0011] Preferably, a first heat preservation box and a mixing barrel are fixedly installed at the bottom of the inner cavity of the fixed shell, and a groove is provided in the inner cavity of the mixing barrel, and the bottom of the groove is an inclined surface.

[0012] Preferably, the drying box is elastically connected to the movable block via a second spring telescopic rod, a first gear is fixedly mounted on the lower end of the stirring rod, a second gear is meshedly connected to one side of the first gear, and a connecting rod is provided at the bottom of the second gear.

[0013] Preferably, one end of the connecting rod away from the second gear is connected to the connecting plate, and a first mounting column is provided in the middle of the second gear and is movably connected to the second gear.

[0014] Preferably, a slope is provided on the top of the connecting plate, a wheel is provided on the bottom of the connecting shaft, and a second mounting column is provided on the top of the connecting plate and is movably connected to the bottom of the fixed shell.

[0015] Preferably, the end of the first connecting tube away from the reagent containing unit is located at the top of the fixing part, and the surface of the fixing part is smooth, and the connecting shaft is movably connected to both the drying box and the second insulation box.

[0016] Preferably, the end of the second connecting pipe away from the mixing barrel is fixedly connected to the drying box, the end of the third connecting pipe away from the first insulation box is fixedly connected to the second insulation box, and a mounting frame is provided on the top of the connecting gear and is fixedly connected to the fixed shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention realizes the effect of quantitatively drying the hydrogen chloride gas by arranging the cooperation of structures such as the connecting disk and the connecting shaft. The rotation of the stirring rod drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the connecting rod to move, the connecting rod drives the connecting disk to rotate, when the connecting disk rotates and the slope conflicts with the connecting shaft, the connecting shaft drives the movable block to move upward, the movement of the movable block causes the second spring telescopic rod to contract, so that the hydrogen chloride gas in the mixing barrel quantitatively enters the inner cavity of the drying box, so that the drying effect of the hydrogen chloride gas is better.

[0019] The present invention achieves the effect of quantitatively adding concentrated sulfuric acid by cooperating with structures such as connecting gears and transmission belt settings. When the transmission belt is engaged with the connecting gear, the transmission belt drives the connecting gear to rotate, so that the threaded rod drives the C-shaped plate to move upward, and the C-shaped plate drives the rectangular plate to move upward, so that the rectangular plate pushes the movable column of the reagent holding unit to quantitatively squeeze the concentrated sulfuric acid in the reagent holding unit holding barrel into the first connecting pipe and flows to the top of the fixing member, thereby reducing the error of the concentrated sulfuric acid.

[0020] The present invention realizes the effect of recycling waste heat and saving energy consumption by arranging the cooperation of structures such as a drying box and a first heat preservation box, so that a driving motor drives a stirring rod to rotate, so that the stirring rod fully mixes sulfuric acid and hydrochloric acid, and the concentrated sulfuric acid and hydrochloric acid fully react to make hydrogen chloride gas escape and release heat, and the heat is conducted between the first heat preservation box and the mixing barrel, and then the heat between the first heat preservation box and the mixing barrel is transmitted to between the drying box and the second heat preservation box through a third connecting pipe, so that the heat between the drying box and the second heat preservation box dries the hydrogen chloride gas in the drying box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 4 It is a schematic diagram of the internal structure coordination relationship of the present invention;

[0025] Figure 5 It is a schematic diagram of the structural matching relationship between the fixing component and the connecting component of the present invention;

[0026] Figure 6 It is a schematic diagram of the explosion structure of the fixed component and the mixing component of the present invention;

[0027] Figure 7This is a schematic diagram of the explosion structure of the connection assembly of the present invention;

[0028] Figure 8 It is a schematic diagram of the structural matching relationship between the connecting disk and the connecting shaft of the present invention.

[0029] In the figure: 1. fixed shell; 2. fixed component; 201. reagent holding unit; 202. rectangular plate; 203. first spring telescopic rod; 204. C-shaped plate; 205. threaded rod; 206. connecting gear; 207. transmission belt; 3. first connecting pipe; 4. mixing component; 401. first insulation box; 402. mixing barrel; 403. stirring rod; 404. fixing piece; 5. second connecting pipe; 6. third connecting pipe; 7. connecting component; 701. drying box; 702. second insulation box; 703. connecting plate; 704. connecting shaft; 705. movable block; 706. second spring telescopic rod; 707. first gear; 708. second gear; 709. connecting rod; 8. driving motor; 9. exhaust pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figures 1 to 8 As shown, the present invention provides a device for recovering hydrogen chloride from a dichlorobenzene by-product, comprising a fixed shell 1, a fixed component 2 is fixedly installed on one side of the fixed shell 1, a first connecting pipe 3 is fixedly installed on the top of the fixed component 2, a driving motor 8 is fixedly installed on the bottom of the fixed shell 1, a mixing component 4 located in the inner cavity of the fixed shell 1 is fixedly connected to the output end of the driving motor 8, a second connecting pipe 5 and a third connecting pipe 6 are fixedly connected to the side of the mixing component 4 away from the fixed component 2, a connecting component 7 is fixedly installed on the bottom of the inner cavity of the fixed shell 1, and an air outlet pipe 9 is arranged on one side of the connecting component 7;

[0032] The fixing assembly 2 includes a reagent containing unit 201, a rectangular plate 202 is fixedly installed at the bottom of the reagent containing unit 201, a C-shaped plate 204 is fixedly installed on one side of the rectangular plate 202, a threaded rod 205 is provided on one side of the C-shaped plate 204, and a connecting gear 206 is threadedly connected to the outer side of the threaded rod 205;

[0033] The mixing assembly 4 includes a stirring rod 403, a fixing member 404 is fixedly mounted on the top of the stirring rod 403, and the fixing member 404 is in a truncated cone shape;

[0034] The connection assembly 7 includes a connection plate 703, a drying box 701 and a second heat preservation box 702 are fixedly installed on the top of the inner cavity of the fixed shell 1, a movable block 705 is movably connected to the lower end of the inner cavity of the second heat preservation box 702, and a connecting shaft 704 is fixedly installed on the bottom of the movable block 705.

[0035] The above scheme is adopted: through the cooperation of the fixing component 2 and the connecting component 7, the desorbed hydrogen chloride gas is cooled by circulating water and then oxidized and dried, and the driving motor 8 drives the transmission belt 207 and the stirring rod 403 to rotate. When the transmission belt 207 is engaged with the connecting gear 206, the transmission belt 207 drives the connecting gear 206 to rotate, so that the threaded rod 205 drives the C-shaped plate 204 to move upward, and the C-shaped plate 204 drives the rectangular plate 202 to move upward, so that the rectangular plate 202 pushes the movable column of the reagent holding unit 201 to quantitatively squeeze the concentrated sulfuric acid in the reagent holding barrel of the reagent holding unit 201 into the first connecting pipe 3 and flows to the top of the fixing member 404, and the stirring rod 4 03 Sulfuric acid and hydrochloric acid are fully mixed, and concentrated sulfuric acid and hydrochloric acid are fully reacted to make hydrogen chloride gas escape and release heat. The stirring rod 403 rotates to drive the first gear 707 to rotate, the first gear 707 drives the second gear 708 to rotate, the second gear 708 drives the connecting rod 709 to move, the connecting rod 709 drives the connecting disk 703 to rotate, and when the connecting disk 703 rotates, when the slope conflicts with the connecting shaft 704, the connecting shaft 704 drives the movable block 705 to move upward, and the movement of the movable block 705 causes the second spring telescopic rod 706 to contract, so that the hydrogen chloride gas in the mixing barrel 402 enters the inner cavity of the drying box 701 in a quantitative manner, so that the drying effect of the hydrogen chloride gas is better.

[0036] like Figure 2 , Figure 6 As shown, a transmission belt 207 is provided at the upper end of the driving motor 8, a movable column is provided on one side of the bottom of the fixed shell 1 close to the reagent containing unit 201 and is connected with the transmission belt 207, an outer wall of the transmission belt 207 is provided with indirect teeth and is meshed with the connecting gear 206, the fixed shell 1 is elastically connected to the rectangular plate 202 through the first spring telescopic rod 203, a slide groove is provided at the lower end of the fixed shell 1, and slide bars are provided on both sides of the C-shaped plate 204.

[0037] The above scheme is adopted: through the cooperation between the connecting gear 206 and the transmission belt 207, the driving motor 8 drives the transmission belt 207 to rotate. The indirect tooth design of the transmission belt 207 makes it possible for the transmission belt 207 to drive the connecting gear 206 to rotate when the teeth of the transmission belt 207 mesh with the connecting gear 206, so that the threaded rod 205 drives the C-shaped plate 204 to move upward, and the C-shaped plate 204 drives the rectangular plate 202 to move upward, so that the rectangular plate 202 pushes the movable column of the reagent holding unit 201 to quantitatively squeeze the reagent in the reagent holding barrel of the reagent holding unit 201 into the first connecting tube 3, and enters the inner cavity of the mixing barrel 402 through the first connecting tube 3. When the transmission belt 207 is not in contact with the connecting gear, the C-shaped plate 204 drives the rectangular plate 202 to move upward, so that the rectangular plate 202 pushes the movable column of the reagent holding unit 201 to quantitatively squeeze the reagent in the reagent holding barrel of the reagent holding unit 201 into the first connecting tube 3, and enters the inner cavity of the mixing barrel 402 through the first connecting tube 3. When the wheel 206 is engaged, the squeezing of the reagent is stopped, and then the addition of the reagent is stopped. Through the cooperation of the first spring telescopic rod 203 and the C-shaped plate 204, the fixed shell 1 is elastically connected to the rectangular plate 202, so that when the rectangular plate 202 pushes the movable column of the reagent holding unit 201 to move upward, the rectangular plate 202 and the movable column are more stable. The design of the sliding groove of the fixed shell 1 and the sliding bars on both sides of the C-shaped plate 204 makes it possible for the sliding groove of the fixed shell 1, the C-shaped plate 204 and the sliding bar to cooperate to limit the C-shaped plate 204 and the threaded rod 205 when the connecting gear 206 drives the C-shaped plate 204 and the threaded rod 205 to move, so that the C-shaped plate 204 and the threaded rod 205 are more stable when moving.

[0038] like Figure 2 , Figure 7 As shown, a first heat preservation box 401 and a mixing barrel 402 are fixedly installed at the bottom of the inner cavity of the fixed shell 1, a groove is provided in the inner cavity of the mixing barrel 402, and the bottom of the groove is an inclined surface, the drying box 701 is elastically connected to the movable block 705 through a second spring telescopic rod 706, a first gear 707 is fixedly installed at the lower end of the stirring rod 403, a second gear 708 is meshedly connected to one side of the first gear 707, and a connecting rod 709 is provided at the bottom of the second gear 708.

[0039] The above scheme is adopted: through the design of the first insulation box 401 and the mixing barrel 402, part of the remaining hydrochloric acid enters the inner cavity of the mixing barrel 402, and the concentrated sulfuric acid in the reagent holding unit 201 is quantitatively added to the inner cavity of the mixing barrel 402. The waste heat of the by-product of hydrochloric acid synthesis enters between the first insulation box 401 and the mixing barrel 402. At the same time, the hydrochloric acid and sulfuric acid dissolve to release heat and hydrogen chloride gas, and the heat is conducted to the drying box 701 and the second insulation box 702 through the third connecting pipe 6, so that the hydrogen chloride gas in the drying box 701 is dried. The design of the groove of the mixing barrel 402 allows the concentrated sulfuric acid to slowly remain along the inner wall of the mixing barrel 402. The design of the inclined surface at the bottom of the groove prevents the concentrated sulfuric acid from accumulating at the bottom of the groove, so that all the concentrated sulfuric acid flows down into When mixed with hydrochloric acid, the driving motor 8 drives the stirring rod 403 to rotate through the cooperation of the first gear 707 and the second gear 708, the stirring rod 403 drives the first gear 707 to rotate, the first gear 707 drives the second gear 708 to rotate, the second gear 708 drives the connecting rod 709 to move, the connecting rod 709 drives the connecting disk 703 to rotate, and when the connecting disk 703 rotates, when the slope conflicts with the connecting shaft 704, the connecting shaft 704 drives the movable block 705 to move upward, and the movement of the movable block 705 causes the second spring telescopic rod 706 to contract, so that the hydrogen chloride gas in the mixing barrel 402 enters the inner cavity of the drying box 701 in a quantitative manner, so that the hydrogen chloride gas in the drying box 701 will not be excessive, resulting in poor drying effect of the hydrogen chloride gas.

[0040] like Figures 4 to 8 As shown, one end of the connecting rod 709 away from the second gear 708 is connected to the connecting disk 703, a first mounting column is provided in the middle of the second gear 708 and is movably connected to the second gear 708, a slope is provided at the top of the connecting disk 703, a wheel is provided at the bottom of the connecting shaft 704, a second mounting column is provided at the top of the connecting disk 703, and is movably connected to the bottom of the fixed shell 1.

[0041] The above scheme is adopted: through the cooperation of the second gear 708 and the connecting rod 709, the second gear 708 is connected to the connecting rod 709, so that the second gear 708 drives the connecting rod 709 to move, and the connecting rod 709 drives the connecting plate 703 to rotate. When the connecting plate 703 rotates, when the slope conflicts with the connecting shaft 704, the connecting shaft 704 drives the movable block 705 to move upward, so that the hydrogen chloride gas in the mixing barrel 402 enters the inner cavity of the drying box 701 in a quantitative manner. The design of the first mounting column in the middle of the second gear 708 limits the second gear 708, so that the first gear 707 drives the second gear 708 to rotate more stably, and the first mounting column is fixedly connected to the bottom of the fixed shell 1. Then, through the cooperation between the connecting disk 703 and the connecting shaft 704, the design of the slope at the top of the connecting disk 703 and the wheel at the bottom of the connecting shaft 704, when the wheel of the connecting shaft 704 contacts the slope of the connecting disk 703, the connecting shaft 704 drives the movable block 705 to move upward, so that the hydrogen chloride gas enters the inner cavity of the first insulated box 401, and when the connecting shaft 704 does not contact the slope of the connecting disk 703, the hydrogen chloride gas stops entering the inner cavity of the first insulated box 401, thereby achieving the effect of quantitative addition of hydrogen chloride gas, and the second mounting column at the top of the connecting disk 703 is movably connected to the fixed shell 1, so that the connecting disk 703 is limited, thereby making the connecting disk 703 run stably.

[0042] like Figure 2 and Figure 4 As shown, one end of the first connecting tube 3 away from the reagent containing unit 201 is at the top of the fixing part 404, and the surface of the fixing part 404 is smooth, the connecting shaft 704 is movably connected to the drying box 701 and the second insulation box 702, one end of the second connecting tube 5 away from the mixing barrel 402 is fixedly connected to the drying box 701, one end of the third connecting tube 6 away from the first insulation box 401 is fixedly connected to the second insulation box 702, and a mounting bracket is provided on the top of the connecting gear 206, and is fixedly connected to the fixed shell 1.

[0043] The above scheme is adopted: through the cooperation of the first connecting tube 3 and the fixing part 404, the end of the first connecting tube 3 away from the reagent holding unit 201 is at the top of the fixing part 404, so as to avoid the splashing of the quantitatively added concentrated sulfuric acid liquid. The surface of the fixing part 404 is smooth so that the concentrated sulfuric acid liquid can slide off the surface of the fixing part 404, so as to avoid the added concentrated sulfuric acid adhering to the surface of the fixing part 404, and the long-term adhesion causes corrosion to the fixing part 404, thereby reducing the service life of the device. The connecting shaft 704 is movably connected with the drying box 701 and the second insulation box 702, so that the drying box 701 and the second insulation box 702 limit the connecting shaft 704, so that the connecting shaft 704 is more stable when moving. Well, through the cooperation of the second connecting pipe 5 and the drying box 701, the second connecting pipe 5 and the drying box 701 are fixedly connected, so that the hydrogen chloride gas in the mixing barrel 402 enters the inner cavity of the drying box 701 through the second connecting pipe 5, and then further dries it. The third connecting pipe 6 and the second insulation box 702 are fixedly connected, so that the heat released by the reaction of concentrated sulfuric acid and hydrochloric acid enters between the drying box 701 and the second insulation box 702 through the third connecting pipe 6, and then the released waste heat is used to further dry the hydrogen chloride gas. The design of the connecting gear 206 allows the mounting frame to limit the connecting gear 206, so that the transmission belt 207 drives the connecting gear 206 to run stably.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recovering hydrogen chloride from dichlorobenzene byproduct, comprising a fixed shell (1), characterized in that: A fixing assembly (2) is fixedly mounted on one side of the fixing shell (1), a first connecting pipe (3) is fixedly mounted on the top of the fixing assembly (2), a driving motor (8) is fixedly mounted on the bottom of the fixing shell (1), an output end of the driving motor (8) is fixedly connected to a mixing assembly (4) located in the inner cavity of the fixing shell (1), a second connecting pipe (5) and a third connecting pipe (6) are fixedly connected to the side of the mixing assembly (4) away from the fixing assembly (2), a connecting assembly (7) is fixedly mounted on the bottom of the inner cavity of the fixing shell (1), and an air outlet pipe (9) is provided on one side of the connecting assembly (7); The fixing assembly (2) comprises a reagent containing unit (201), a rectangular plate (202) being fixedly mounted on the bottom of the reagent containing unit (201), a C-shaped plate (204) being fixedly mounted on one side of the rectangular plate (202), a threaded rod (205) being arranged on one side of the C-shaped plate (204), and a connecting gear (206) being threadedly connected to the outer side of the threaded rod (205); The mixing assembly (4) comprises a stirring rod (403), a fixing member (404) is fixedly mounted on the top of the stirring rod (403), and the fixing member (404) is in the shape of a truncated cone; The connection assembly (7) comprises a connection plate (703); a drying box (701) and a second heat preservation box (702) are fixedly mounted on the top of the inner cavity of the fixed shell (1); a movable block (705) is movably connected to the lower end of the inner cavity of the second heat preservation box (702); and a connecting shaft (704) is fixedly mounted on the bottom of the movable block (705).

2. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: A transmission belt (207) is arranged at the upper end of the driving motor (8), and a movable column is arranged on one side of the bottom of the fixed housing (1) close to the reagent containing unit (201) and is connected to the transmission belt (207). An outer wall of the transmission belt (207) is provided with indirect teeth and is meshedly connected to the connecting gear (206).

3. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: The fixed shell (1) is elastically connected to the rectangular plate (202) via a first spring telescopic rod (203); a slide groove is provided at the lower end of the fixed shell (1); and slide bars are provided on both sides of the C-shaped plate (204).

4. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: A first heat preservation box (401) and a mixing barrel (402) are fixedly mounted on the bottom of the inner cavity of the fixed shell (1); the inner cavity of the mixing barrel (402) is provided with a groove, and the bottom of the groove is an inclined surface.

5. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: The drying box (701) is elastically connected to the movable block (705) via a second spring telescopic rod (706); a first gear (707) is fixedly mounted on the lower end of the stirring rod (403); a second gear (708) is meshedly connected to one side of the first gear (707); and a connecting rod (709) is provided at the bottom of the second gear (708).

6. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 5, characterized in that: One end of the connecting rod (709) away from the second gear (708) is connected to the connecting plate (703); a first mounting column is provided in the middle of the second gear (708) and is movably connected to the second gear (708).

7. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: The top of the connection disk (703) is provided with a slope, the bottom of the connection shaft (704) is provided with wheels, and the top of the connection disk (703) is provided with a second mounting column, which is movably connected to the bottom of the fixed housing (1).

8. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: One end of the first connecting tube (3) away from the reagent containing unit (201) is located at the top of the fixing member (404), and the surface of the fixing member (404) is smooth. The connecting shaft (704) is movably connected to both the drying box (701) and the second insulation box (702).

9. The device for recovering hydrogen chloride from dichlorobenzene by-product according to claim 1, characterized in that: One end of the second connecting pipe (5) away from the mixing barrel (402) is fixedly connected to the drying box (701), one end of the third connecting pipe (6) away from the first heat preservation box (401) is fixedly connected to the second heat preservation box (702), and a mounting frame is provided on the top of the connecting gear (206) and is fixedly connected to the fixed housing (1).

Images