CN110935265A - Harmless and pollution-free treatment system for pharmaceutical emissions - Google Patents
Harmless and pollution-free treatment system for pharmaceutical emissions Download PDFInfo
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- CN110935265A CN110935265A CN201911359031.5A CN201911359031A CN110935265A CN 110935265 A CN110935265 A CN 110935265A CN 201911359031 A CN201911359031 A CN 201911359031A CN 110935265 A CN110935265 A CN 110935265A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
- B01D53/8609—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/02—Other direct-contact heat-exchange apparatus the heat-exchange media both being gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
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- Health & Medical Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
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Abstract
The invention discloses a harmless and pollution-free treatment system for pharmaceutical emissions, relates to the field related to emission treatment, and aims to solve the problem that in the prior art, byproducts generated after pollution-free treatment of wastes are irrelevant to the pharmaceutical industry and cannot be directly applied to the pharmaceutical industry. The upper end of waste gas pretreatment unit one side is provided with dry unit, dry unit passes through moist exhaust gas discharge pipe with waste gas pretreatment unit and is connected, and is provided with the control valve on the moist exhaust gas discharge pipe, one side of dry unit is provided with the catalytic reaction unit, the catalytic reaction unit passes through dry exhaust gas discharge pipe with dry unit and is connected, one side of catalytic reaction unit is provided with the absorption tower, the absorption tower passes through sulfur trioxide runner pipe with the catalytic reaction unit and is connected, first delivery pump is installed to the centre of sulfur trioxide runner pipe, one side of absorption tower is provided with the dilution unit, the dilution unit passes through fuming sulfuric acid runner pipe with the absorption tower and is connected.
Description
Technical Field
The invention relates to the field of emission treatment, in particular to a harmless and pollution-free treatment system for pharmaceutical emissions.
Background
The pharmaceutical industry refers to pharmaceutical industry enterprises which take medicinal plants as main raw materials and produce traditional Chinese medicine decoction pieces and various dosage form products of Chinese patent medicines according to national formulary. The waste gas generated by the traditional Chinese medicine decoction pieces is mainly medicine dust generated in the cutting and other processes and medicine smoke generated in the processing process, the waste gas generated by the Chinese patent medicine is mainly sulfur dioxide, smoke dust and dust, and the sulfur dioxide is the most common and simplest sulfur oxide and one of the main pollutants in the atmosphere, and belongs to one of 3 kinds of carcinogens published by the international cancer research institution of the world health organization. A small amount of sulfur dioxide enters the body and finally generates sulfate which can be discharged out of the body through urine after normal detoxification, and toxic effect can not be generated; however, if sulfur dioxide is excessively taken, allergy is easily caused, symptoms such as dyspnea, diarrhea, vomiting and the like may be caused, and brain and other tissues may be damaged to different degrees. Therefore, the harmless treatment of the waste of the Chinese patent medicine is mainly the absorption and discharge treatment of sulfur dioxide.
The by-products of the treatment of exhaust gases in the pharmaceutical industry are currently largely irrelevant, for example, the by-product of limestone process is gypsum and the by-product of ammonia process is (NH)4)2SO4Or (NH)4)2SO3After the subsequent waste gas treatment in pharmacy, the generated reaction can not be directly applied to the pharmacy industry again; there is therefore an urgent need in the market to develop a harmless and pollution-free treatment system for pharmaceutical effluents to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide a harmless and pollution-free treatment system for pharmaceutical emissions, so as to solve the problem that the by-products generated after pollution-free treatment of wastes in the background art are irrelevant to the pharmaceutical industry and cannot be directly applied to the pharmaceutical industry.
In order to achieve the purpose, the invention provides the following technical scheme: harmless and pollution-free treatment system of pharmacy emission, including waste gas pretreatment unit, the upper end of waste gas pretreatment unit one side is provided with dry unit, dry unit is connected through moist waste gas discharge pipe with waste gas pretreatment unit, and is provided with the control valve on the moist waste gas discharge pipe, one side of dry unit is provided with the catalytic reaction unit, the catalytic reaction unit passes through dry waste gas discharge pipe with dry unit and is connected, one side of catalytic reaction unit is provided with the absorption tower, the absorption tower passes through sulfur trioxide runner pipe with the catalytic reaction unit and is connected, first delivery pump is installed to the centre of sulfur trioxide runner pipe, one side of absorption tower is provided with the dilution unit, the dilution unit passes through fuming sulfuric acid runner pipe with the absorption tower and is connected, one side of dilution unit is provided with the storage unit, the storage unit passes through the sulfuric acid siphunculus with the dilution unit and is connected, the second delivery pump is installed to the centre of sulphuric acid siphunculus, the circulating pipe is installed to one side of storage unit, and storage unit passes through the circulating pipe with the absorption tower and is connected, the third delivery pump is installed to the centre of circulating pipe, be provided with the sulfur trioxide shower between the upper end of absorption tower and the lower extreme, the circulating pump is installed to the centre of sulfur trioxide shower.
Preferably, waste gas pretreatment unit includes the pre-treatment chamber, the upper end of pre-treatment chamber is provided with the equipment box, and the equipment box passes through the bolt and fixes with the pre-treatment chamber, the internally mounted of equipment box has electric telescopic handle, the pressure dish is installed to electric telescopic handle's lower extreme, and electric telescopic handle's the body of rod passes the pre-treatment chamber and passes through the keyway with the pressure dish fixed, and the pre-treatment chamber passes through linear bearing with electric telescopic handle's the body of rod to be connected, be provided with spacing arch on the inner wall of pre-treatment chamber, and spacing arch and pre-treatment chamber integrated into.
Preferably, one side of the upper end of the catalytic reaction unit is provided with an oxygen inlet pipe and a catalyst inlet pipe, the oxygen inlet pipe is positioned on one side of the catalyst inlet pipe, the catalytic reaction unit is provided with a mixing chamber, the inside of the mixing chamber is provided with a spiral piece, the spiral piece is welded on the inner wall of the mixing chamber, the middle of the spiral piece is provided with an intermediate pipe, one end of the intermediate pipe is connected with a dry waste gas discharge pipe, the other end of the intermediate pipe is fixed with the mixing chamber through a ring, and the outer surface of one side, close to the dry waste gas discharge pipe, of the intermediate pipe is provided with a filter hole.
Preferably, one side of pretreatment room outside lower extreme is provided with the cold air and lets in the pipe, the opposite side of pretreatment room outside lower extreme is provided with the cold air discharge pipe, the inside of pretreatment room is provided with the baffle, forms the cold air circulation chamber between the inner wall of baffle and pretreatment room, and the cold air lets in one-way intercommunication between pipe, cold air circulation chamber and the cold air discharge pipe.
Preferably, the four sides position in the pressure dish outside is provided with the slider, and the pressure dish passes through slider sliding connection with the preliminary treatment room, and the sliding position of slider and preliminary treatment room baffle is provided with sliding seal, be provided with the through hole on the pressure dish, and the through hole is provided with a plurality of.
Preferably, the upper end of pretreatment room outside one side is provided with the waste gas shower, the inside upper end of pretreatment room is provided with the spray coil, spray coil and waste gas shower intercommunication, and the spray coil sets up to the annular, and the spray coil is fixed with the pretreatment room.
Preferably, the lower end of the pretreatment chamber is provided with a conversion part, and the lower end inside the conversion part is provided with a solid waste discharge drawer.
Preferably, the solid waste discharge drawer comprises a drawer frame and a filter screen, the filter screen and the drawer frame are fixed through clamping, the filter screen is provided with multiple layers, and the diameters of the multiple layers of filter screens are gradually reduced from top to bottom.
Preferably, the upper end that the air conditioning let in the pipe is provided with waste gas and lets in the pipe, and waste gas lets in the pipe and pass the baffle, the lower extreme of preliminary treatment room is provided with the waste water room, the one end of waste water room is provided with the waste water discharge pipe.
Preferably, the drying unit includes the heating chamber, the lower extreme of absorption tower is provided with the room of keeping in, and just keeps in the inside intercommunication of room and absorption tower, keeps in the room and passes through the sulfur trioxide shower with the outside of absorption tower and be connected, and the opposite side and the circulating pipe of the room of keeping in are connected, the upper end of diluting the unit is provided with the inlet tube.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the waste gas is firstly cooled by the waste gas pretreatment unit, the solid dust and dust of the dust in the waste gas are discharged by the pure water in the waste gas spray pipe, so that the sulfur dioxide in the waste gas flows backwards through the wet waste gas discharge pipe, the waste gas is heated by the heating chamber on the drying unit, the waste gas keeps a dry state and flows backwards, the sulfur dioxide is converted into sulfur trioxide under the combined action of oxygen and a catalyst and flows into an absorption tower through a sulfur trioxide flow pipe, the circulating pump absorbs the sulfuric acid in the temporary storage chamber for flushing again, so that the introduced sulfur trioxide is converted into fuming sulfuric acid and becomes sulfuric acid liquid after being diluted by adding water, the sulfuric acid can be used for sulfonation reaction in the preparation process of sulfonamide medicaments in the pharmaceutical industry, and the sulfuric acid is applied to the preparation process of a plurality of antibiotics, the sulfur dioxide in the waste gas is treated by the system, the discharge pollution is directly reduced without directly discharging into the atmosphere, and the by-product sulfuric acid is directly generated in the harmless treatment process of sulfur dioxide, so that the method can be directly applied to the pharmaceutical industry;
2. compared with a normal treatment device, the device is additionally provided with a cold air inlet pipe, a cold air outlet pipe and a cold air circulation cavity, waste gas is cooled through circulation of cold air, spray water in the spray coil pipe is used for cooling the waste gas at the same time, some floating solid particles are settled down through cooling and settling, if sulfur dioxide is introduced, the temperature is high, the waste gas is not treated, only the spray is carried out, high-temperature gas can heat the spray water, the spray water is gasified into steam, part of dust particles and the sulfur dioxide gas are carried to the next step, after the temperature is reduced, the heating effect is reduced, and part of steam is converted into liquid under the cooling action again, so that the dust and the smoke dust in the waste gas are purified;
3. in the invention, a pressure disc is added in a waste gas pretreatment unit and moves up and down under the drive of an electric telescopic rod structure, a plurality of through holes are formed in the pressure disc, the spraying of spray water and the circulation of waste gas are not affected, but the circulation speed of the waste gas is limited, when the pressure disc is pressed downwards, part of the waste gas overflows from the through holes, but a large amount of waste gas is pressed downwards by the pressure disc, so that the pressure is increased, the pressure disc is pressed downwards, the overflow speed of the waste gas from the through holes is higher, the treatment speed of the waste gas in a pretreatment chamber is controlled again, the waste gas overflows upwards at a higher speed, the spray water is pressed downwards at a higher speed, and collision can be carried out, so that the contact area between the waste gas and the spray water is enlarged, and the settlement of dust particles is facilitated;
4. in the catalytic reaction unit, sulfur dioxide and oxygen are not directly used for catalytic reaction, but a spiral part is additionally arranged in the mixing chamber, the sulfur dioxide overflows through holes arranged on the middle pipe, contacts with the oxygen and the catalyst in the mixing chamber and moves to one side along the spiral part under the action of pressure, and a vortex is generated in the spiral process to play a role in stirring, so that the sulfur dioxide, the oxygen and the catalyst are fully contacted and fully reacted.
Drawings
FIG. 1 is a front view of a non-hazardous and non-polluting treatment system for pharmaceutical effluents of the present invention;
FIG. 2 is an internal structural view of an exhaust gas pretreatment unit of the present invention;
FIG. 3 is a block diagram of the pressure disk of the present invention;
FIG. 4 is a block diagram of the solid waste drawer of the present invention;
FIG. 5 is an internal structural view of a catalytic reaction unit of the present invention.
In the figure: 1. an exhaust gas pretreatment unit; 2. a wet exhaust gas discharge pipe; 3. a drying unit; 4. a dry exhaust gas discharge pipe; 5. a catalytic reaction unit; 6. a first delivery pump; 7. a sulfur trioxide flow pipe; 8. an absorption tower; 9. a sulfur trioxide spray pipe; 10. a fuming sulfuric acid flow tube; 11. a dilution unit; 12. a second delivery pump; 13. a sulfuric acid through pipe; 14. a storage unit; 15. a circulation pipe; 16. a circulation pump; 17. an equipment box; 18. a waste gas shower pipe; 19. an exhaust gas inlet pipe; 20. a cold air inlet pipe; 21. a pretreatment chamber; 22. a waste water chamber; 23. a solid waste discharge drawer; 24. a waste water discharge pipe; 25. a cold air discharge pipe; 26. a heating chamber; 27. an oxygen inlet pipe; 28. a catalyst inlet pipe; 29. a third delivery pump; 30. a temporary storage chamber; 31. a water inlet pipe; 32. an electric telescopic rod; 33. a pressure disc; 34. spraying a coil pipe; 35. a limiting bulge; 36. a cold air circulation chamber; 37. a conversion section; 38. a slider; 39. a through hole; 40. filtering with a screen; 41. an intermediate pipe; 42. a screw; 43. a mixing chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: the harmless and pollution-free treatment system for the pharmaceutical emissions comprises an exhaust gas pretreatment unit 1, a drying unit 3 is arranged at the upper end of one side of the exhaust gas pretreatment unit 1, the drying unit 3 is connected with the exhaust gas pretreatment unit 1 through a wet exhaust gas discharge pipe 2, a control valve is arranged on the wet exhaust gas discharge pipe 2, a catalytic reaction unit 5 is arranged at one side of the drying unit 3, the catalytic reaction unit 5 is connected with the drying unit 3 through a dry exhaust gas discharge pipe 4, an absorption tower 8 is arranged at one side of the catalytic reaction unit 5, the absorption tower 8 is connected with the catalytic reaction unit 5 through a sulfur trioxide runner pipe 7, a first delivery pump 6 is arranged in the middle of the sulfur trioxide runner pipe 7, a dilution unit 11 is arranged at one side of the absorption tower 8, the dilution unit 11 is connected with the absorption tower 8 through a fuming sulfuric acid runner pipe 10, and a storage, the storage unit 14 is connected with the dilution unit 11 through a sulfuric acid through pipe 13, a second delivery pump 12 is installed in the middle of the sulfuric acid through pipe 13, a circulating pipe 15 is installed on one side of the storage unit 14, the storage unit 14 is connected with the absorption tower 8 through the circulating pipe 15, a third delivery pump 29 is installed in the middle of the circulating pipe 15, a sulfur trioxide spray pipe 9 is arranged between the upper end and the lower end of the absorption tower 8, and a circulating pump 16 is installed in the middle of the sulfur trioxide spray pipe 9.
Further, waste gas pretreatment unit 1 includes pretreatment chamber 21, the upper end of pretreatment chamber 21 is provided with equipment box 17, and equipment box 17 is fixed with pretreatment chamber 21 through the bolt, equipment box 17's internally mounted has electric telescopic handle 32, pressure dish 33 is installed to electric telescopic handle 32's lower extreme, the body of rod of electric telescopic handle 32 passes pretreatment chamber 21 and passes through the keyway with pressure dish 33 and fix, pretreatment chamber 21 passes through linear bearing with electric telescopic handle 32's the body of rod and is connected, be provided with spacing arch 35 on pretreatment chamber 21's the inner wall, spacing arch 35 plays spacing effect, the highest position of limited pressure dish 33, make its work that does not block other components, and spacing arch 35 and pretreatment chamber 21 integrated into one piece.
Further, an oxygen inlet pipe 27 and a catalyst inlet pipe 28 are installed at one side of the upper end of the catalytic reaction unit 5;
the oxygen inlet pipe 27 is positioned at one side of the catalyst inlet pipe 28, the catalytic reaction unit 5 is provided with a mixing chamber 43, a spiral piece 42 is arranged inside the mixing chamber 43, the spiral piece 42 is welded on the inner wall of the mixing chamber 43, the middle of the spiral piece 42 is provided with a middle pipe 41, one end of the middle pipe 41 is connected with the dry waste gas discharge pipe 4, the other end of the middle pipe 41 is fixed with the mixing chamber 43 through a circular ring, the outer surface of the middle pipe 41 close to one side of the dry waste gas discharge pipe 4 is provided with a filter hole, sulfur dioxide overflows through the hole arranged on the middle pipe 41, contacts with oxygen and a catalyst in the mixing chamber 43 and moves to one side along the spiral piece 42 under the action of pressure, vortex can be generated in the spiral process, the stirring effect is achieved, and therefore the three are in full contact and fully react.
Further, one side of the lower end of the outer side of the pretreatment chamber 21 is provided with a cold air inlet pipe 20, the other side of the lower end of the outer side of the pretreatment chamber 21 is provided with a cold air outlet pipe 25, a partition plate is arranged inside the pretreatment chamber 21 and fixed with the pretreatment chamber 21 by adopting the same material, a cold air circulation cavity 36 is formed between the partition plate and the inner wall of the pretreatment chamber 21, the cold air inlet pipe 20, the cold air circulation cavity 36 and the cold air outlet pipe 25 are communicated in a one-way mode, and the cold air outlet pipe 25 is cooled again through a condensing device and then input from the cold air.
Further, four sides of the outer side of the pressure disc 33 are provided with sliding pieces 38, the pressure disc 33 is connected with the pretreatment chamber 21 in a sliding mode through the sliding pieces 38, sliding seals are arranged at sliding positions of a partition plate of the pretreatment chamber 21 and the sliding pieces 38, a through hole 39 is formed in the pressure disc 33, a plurality of through holes 39 are formed in the through holes 39, when the pressure disc 33 is pressed downwards, part of waste gas overflows from the through holes 39, but a large amount of waste gas is pressed downwards by the pressure disc 33, so that the pressure is increased, the speed of the waste gas overflowing from the through holes 39 is higher as the pressure disc 33 is pressed downwards, the waste gas overflows upwards at a higher speed, spray water is downward at a higher speed and collides to be exploded, and therefore the contact area between the waste gas and the spray water is enlarged to be beneficial to sedimentation.
Further, the upper end of pretreatment room 21 outside one side is provided with waste gas spray pipe 18, carries the water purification among the waste gas spray pipe 18 to spray for spray coil pipe 34, and the inside upper end of pretreatment room 21 is provided with spray coil pipe 34, and spray coil pipe 34 and waste gas spray pipe 18 intercommunication, spray coil pipe 34 set up to the annular, and electric telescopic handle 32's the body of rod carries out up-and-down motion, and spray coil pipe 34 is fixed with pretreatment room 21.
Further, a switching part 37 is provided at the lower end of the pretreatment chamber 21, and a solid waste drawer 23 is provided at the lower end inside the switching part 37.
Further, the solid waste discharging drawer 23 comprises a drawer frame and a filter screen 40, the filter screen 40 is fixed with the drawer frame through a clamping, the filter screen 40 is provided with multiple layers, and the diameter of the filter holes of the multiple layers of filter screens 40 is gradually reduced from top to bottom.
Further, an exhaust gas inlet pipe 19 is provided at an upper end of the cold air inlet pipe 20, the exhaust gas inlet pipe 19 penetrates through the partition plate, a waste water chamber 22 is provided at a lower end of the pretreatment chamber 21, and a waste water discharge pipe 24 is provided at one end of the waste water chamber 22.
Further, drying unit 3 includes heating chamber 26, heats, makes the waste gas that contains steam dried, makes it be clean dry sulfur dioxide gas, and the lower extreme of absorption tower 8 is provided with the room 30 of keeping in, and just keeps in room 30 and absorption tower 8's inside intercommunication, and room 30 and absorption tower 8's outside of keeping in is passed through sulfur trioxide shower 9 and is connected, and the opposite side and the circulating pipe 15 of the room 30 of keeping in are connected, and the upper end of dilution unit 11 is provided with inlet tube 31.
The working principle is as follows: when the device is used, the waste gas enters the waste gas pretreatment unit through the waste gas inlet pipe 19, the cold gas circulation cavity 36 formed by the cold gas inlet pipe 20 and the cold gas discharge pipe 25 cools the waste gas (if sulfur dioxide is introduced, the temperature is high, the spraying is only carried out through the spraying coil pipe 34, the high-temperature gas can heat the spraying water to enable the spraying water to be gasified into steam, and a part of dust particles and the sulfur dioxide gas are led to the next step, so that the temperature is uniformly reduced), the waste gas spraying pipe 18 conveys pure water to the spraying coil pipe 34 to spray, the sharp-edged dust solid smoke and dust in the waste gas are settled, in the process, the pressure disc 33 is driven by the electric telescopic rod 32 to move up and down, when the pressure disc 33 is pressed down, a part of the waste gas overflows from the through hole 39, but a large amount of the waste gas is pressed down by the pressure disc 33 to enable the pressure to be increased, the pressure disc 33, the waste gas overflows upwards at a high speed, and the spray water downwards at a high speed, and the collision can be exploded, so that the contact area between the waste gas and the spray water is enlarged, and the sedimentation of dust particles is facilitated. The waste gas after settlement purification flows backwards through the wet waste gas discharge pipe 2, and is heated through the heating chamber 26 on the drying unit 3, so that the waste gas keeps a dry state and enters the catalytic reaction unit 5 through the dry waste gas discharge pipe 4, oxygen and a catalyst are respectively introduced from the oxygen introduction pipe 27 and the catalyst introduction pipe 28, sulfur dioxide overflows through holes arranged on the intermediate pipe 41, contacts with the oxygen and the catalyst in the mixing chamber 43 and moves to one side along the spiral piece 42 under the action of pressure, vortex can be generated in the spiral process, and the stirring effect is achieved, so that the three are in full contact, full reaction is achieved, conversion is achieved under the combined action of the oxygen and the catalyst, the sulfur trioxide flows into the absorption tower 8 through the sulfur trioxide circulation pipe 7, the circulating pump 16 absorbs the sulfuric acid in the temporary storage chamber 30 to carry out secondary flushing through the circulating pipe 15, and the introduced sulfur trioxide is converted into fuming sulfuric acid, enters the dilution unit 11 through the fuming sulfuric acid flowing pipe 10, and becomes sulfuric acid liquid after being diluted by water entering the water inlet pipe 31 and is stored in the storage unit 14.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. Pharmaceutical emissions harmless and pollution-free treatment system, including exhaust gas pretreatment unit (1), characterized by: the device is characterized in that a drying unit (3) is arranged at the upper end of one side of the waste gas pretreatment unit (1), the drying unit (3) is connected with the waste gas pretreatment unit (1) through a wet waste gas discharge pipe (2), a control valve is arranged on the wet waste gas discharge pipe (2), a catalytic reaction unit (5) is arranged on one side of the drying unit (3), the catalytic reaction unit (5) is connected with the drying unit (3) through a dry waste gas discharge pipe (4), an absorption tower (8) is arranged on one side of the catalytic reaction unit (5), the absorption tower (8) is connected with the catalytic reaction unit (5) through a sulfur trioxide circulation pipe (7), a first delivery pump (6) is arranged in the middle of the sulfur trioxide circulation pipe (7), a diluting unit (11) is arranged on one side of the absorption tower (8), and the diluting unit (11) is connected with the absorption tower (8) through a fuming sulfuric acid circulation pipe (10), one side of dilution unit (11) is provided with storage unit (14), storage unit (14) is connected through sulphuric acid siphunculus (13) with dilution unit (11), second delivery pump (12) are installed to the centre of sulphuric acid siphunculus (13), circulating pipe (15) are installed to one side of storage unit (14), and storage unit (14) is connected through circulating pipe (15) with absorption tower (8), third delivery pump (29) are installed to the centre of circulating pipe (15), be provided with sulfur trioxide shower (9) between the upper end of absorption tower (8) and the lower extreme, circulating pump (16) are installed to the centre of sulfur trioxide shower (9).
2. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 1, wherein: waste gas preliminary treatment unit (1) is including pretreatment chamber (21), the upper end of pretreatment chamber (21) is provided with equipment box (17), and equipment box (17) are fixed through bolt and pretreatment chamber (21), the internally mounted of equipment box (17) has electric telescopic handle (32), pressure dish (33) are installed to the lower extreme of electric telescopic handle (32), and the body of rod of electric telescopic handle (32) passes pretreatment chamber (21) and fixes through the keyway with pressure dish (33), and pretreatment chamber (21) passes through linear bearing with the body of rod of electric telescopic handle (32) and is connected, be provided with spacing arch (35) on the inner wall of pretreatment chamber (21), and spacing arch (35) and pretreatment chamber (21) integrated into one piece.
3. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 1, wherein: oxygen lets in pipe (27) and catalyst and lets in pipe (28) are installed to one side of catalytic reaction unit (5) upper end, and oxygen lets in pipe (27) and is located one side that catalyst lets in pipe (28), be provided with mixing chamber (43) on catalytic reaction unit (5), the inside of mixing chamber (43) is provided with screw (42), and screw (42) weld on the inner wall of mixing chamber (43), the centre of screw (42) is provided with intermediate tube (41), and the one end and the dry waste gas discharge pipe (4) of intermediate tube (41) are connected, and the other end of intermediate tube (41) is fixed with mixing chamber (43) through the ring, and the surface that intermediate tube (41) are close dry waste gas discharge pipe (4) one side is provided with the filtration pore.
4. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 2, wherein: pretreatment chamber (21) outside one side of lower extreme is provided with cold air and lets in pipe (20), pretreatment chamber (21) outside opposite side of lower extreme is provided with cold air discharge tube (25), the inside of pretreatment chamber (21) is provided with the baffle, forms cold air circulation chamber (36) between the inner wall of baffle and pretreatment chamber (21), and one-way intercommunication between cold air lets in pipe (20), cold air circulation chamber (36) and cold air discharge tube (25).
5. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 2, wherein: the four sides position in pressure dish (33) outside is provided with slider (38), and pressure dish (33) and pretreatment chamber (21) pass through slider (38) sliding connection, and slider (38) and the sliding position of pretreatment chamber (21) baffle are provided with sliding seal, be provided with through hole (39) on pressure dish (33), and through hole (39) are provided with a plurality of.
6. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 2, wherein: the upper end of pretreatment room (21) outside one side is provided with waste gas shower (18), the inside upper end of pretreatment room (21) is provided with spray coil (34), spray coil (34) and waste gas shower (18) intercommunication, and spray coil (34) set up to the annular, and spray coil (34) are fixed with pretreatment room (21).
7. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 1, wherein: the lower extreme of preliminary treatment room (21) is provided with conversion portion (37), the inside lower extreme of conversion portion (37) is provided with solid exhaust drawer (23).
8. The system for the harmless and pollution-free treatment of pharmaceutical effluents according to claim 7, wherein: solid exhaust drawer (23) include drawer frame and filter screen (40), and filter screen (40) pass through the clamping with the drawer frame and fix, and filter screen (40) are provided with the multilayer, and multilayer filter screen (40) are from last to diminishing gradually down filtration pore diameter.
9. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 4, wherein: the upper end that air conditioning let in pipe (20) is provided with waste gas and lets in pipe (19), and waste gas lets in pipe (19) and pass the baffle, the lower extreme of preliminary treatment room (21) is provided with waste water room (22), the one end of waste water room (22) is provided with waste water discharge pipe (24).
10. The system for harmless and pollution-free treatment of pharmaceutical effluents according to claim 1, wherein: drying unit (3) are including heating chamber (26), the lower extreme of absorption tower (8) is provided with temporary storage chamber (30), and temporary storage chamber (30) and the inside intercommunication of absorption tower (8), and temporary storage chamber (30) are connected through sulfur trioxide shower (9) with the outside of absorption tower (8), and the opposite side and the circulating pipe (15) of temporary storage chamber (30) are connected, the upper end of diluting unit (11) is provided with inlet tube (31).
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| CN201911359031.5A CN110935265A (en) | 2019-12-25 | 2019-12-25 | Harmless and pollution-free treatment system for pharmaceutical emissions |
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| CN201911359031.5A CN110935265A (en) | 2019-12-25 | 2019-12-25 | Harmless and pollution-free treatment system for pharmaceutical emissions |
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