CN109573947B - Efficient hydrogen chloride preparation process - Google Patents
Efficient hydrogen chloride preparation process Download PDFInfo
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- CN109573947B CN109573947B CN201910114346.7A CN201910114346A CN109573947B CN 109573947 B CN109573947 B CN 109573947B CN 201910114346 A CN201910114346 A CN 201910114346A CN 109573947 B CN109573947 B CN 109573947B
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- box body
- concentrated sulfuric
- hydrochloric acid
- sulfuric acid
- hydrogen chloride
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 337
- 229910000041 hydrogen chloride Inorganic materials 0.000 title claims abstract description 106
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000002360 preparation method Methods 0.000 title claims abstract description 56
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000007789 gas Substances 0.000 claims abstract description 68
- 238000003756 stirring Methods 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims description 71
- 239000007788 liquid Substances 0.000 claims description 66
- 239000012188 paraffin wax Substances 0.000 claims description 25
- 238000013016 damping Methods 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000005381 potential energy Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 12
- 210000000078 claw Anatomy 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000011259 mixed solution Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 230000000739 chaotic effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the technical field of hydrogen chloride preparation processes, in particular to a high-efficiency hydrogen chloride preparation process, which comprises the following steps: respectively introducing concentrated sulfuric acid and hydrochloric acid into a fixed box body of the hydrogen chloride generating device from two passage ports on the hydrogen chloride generating device; the introduced concentrated sulfuric acid and hydrochloric acid flow down along the inclined plane of the movable box body, sequentially enter a plurality of hoses arranged on the inclined plane, and are sprayed into an exhaust pipeline along the hoses; the sprayed concentrated sulfuric acid and hydrochloric acid push the shifting plate to rotate along with the rotating shaft, and the rotating shaft rotates along with the shifting grab at the lower part of the rotating shaft to stir the concentrated sulfuric acid and the hydrochloric acid; the hydrogen chloride gas generated by mixing the concentrated sulfuric acid and the hydrochloric acid is extracted through an exhaust fan; the invention utilizes potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose to push the shifting plate to rotate with the rotating shaft, thereby stirring the concentrated sulfuric acid and the hydrochloric acid, accelerating the mixing of the concentrated sulfuric acid and the hydrochloric acid and improving the efficiency of preparing the hydrogen chloride gas.
Description
Technical Field
The invention belongs to the technical field of hydrogen chloride preparation processes, and particularly relates to a high-efficiency hydrogen chloride preparation process.
Background
Hydrogen chloride (HCl), a hydrogen chloride molecule consisting of one chlorine atom and one hydrogen atom, is a colorless, pungent odor gas. The aqueous solution is commonly called hydrochloric acid and the school name hydrochloric acid. The relative molecular mass was 36.46. Hydrogen chloride is very soluble in water, and at 0℃,1 volume of water can dissolve approximately 500 volumes of hydrogen chloride.
The common method for preparing hydrogen chloride is to add concentrated sulfuric acid into concentrated hydrochloric acid, because the concentrated sulfuric acid has water absorption, solvent water in the concentrated hydrochloric acid is reduced, solute HCl is volatilized, meanwhile, the temperature is increased, the solubility of HCl is reduced, and the volatilization of HCl is promoted, so that HCl gas is prepared. However, the existing hydrogen chloride preparation process has low efficiency for preparing the hydrogen chloride gas, and greatly influences the supply of the hydrogen chloride gas in the applicable occasions.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a high-efficiency hydrogen chloride preparation process which is mainly used for solving the problem of low efficiency of preparing hydrogen chloride gas by the existing hydrogen chloride preparation process.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a high-efficiency hydrogen chloride preparation process, which comprises the following steps:
s1: respectively introducing concentrated sulfuric acid and hydrochloric acid into a fixed box body of the hydrogen chloride generating device from two passage ports on the hydrogen chloride generating device; by using the hydrogen chloride generating device, the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, the time for mixing the concentrated sulfuric acid and the hydrochloric acid is reduced, and the preparation efficiency of the hydrogen chloride gas is effectively improved;
s2: the method comprises the steps that S1, the introduced concentrated sulfuric acid and hydrochloric acid flow down along the inclined plane of the movable box body, sequentially enter a plurality of hoses arranged on the inclined plane, and are sprayed into an exhaust pipeline along the hoses; the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose is utilized, so that the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, and the preparation efficiency of the hydrogen chloride gas is improved; meanwhile, the concentrated sulfuric acid and the hydrochloric acid are sprayed out of the hose in sequence, so that the concentrated sulfuric acid and the hydrochloric acid are mixed in batches, the mixing degree of the concentrated sulfuric acid and the hydrochloric acid is improved, the time required by fully mixing the concentrated sulfuric acid and the hydrochloric acid is shortened, and the preparation efficiency of the hydrogen chloride gas is improved;
s3: s2, pushing the stirring plate to rotate with the rotating shaft by the sprayed concentrated sulfuric acid and hydrochloric acid, and stirring the concentrated sulfuric acid and the hydrochloric acid by the rotating shaft to rotate with the stirring grip at the lower part of the rotating shaft; the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose is utilized to push the shifting plate to rotate along with the rotating shaft, so that the concentrated sulfuric acid and the hydrochloric acid are stirred, the concentrated sulfuric acid and the hydrochloric acid are mixed in an accelerating way, and the preparation efficiency of the hydrogen chloride gas is improved; meanwhile, the stirring and grabbing rotation of the lower part of the rotating shaft is utilized to stir the mixed solution, so that the mixing degree of the mixed solution is further improved, and the preparation efficiency of the hydrogen chloride gas is improved; in addition, the movable box body is dithered by poking the first spring, so that the concentrated sulfuric acid and the hydrochloric acid are mixed more fully, and the efficiency of preparing the hydrogen chloride gas is further improved;
s4: s3, extracting hydrogen chloride gas generated by mixing concentrated sulfuric acid and hydrochloric acid through an exhaust fan; the rotation of the rotating shaft is utilized to timely exhaust the generated hydrogen chloride gas by the exhaust fan, so that the generated hydrogen chloride gas is prevented from reacting with the mixed solution again, and the preparation efficiency of the hydrogen chloride gas is prevented from being influenced;
the hydrogen chloride generating device adopted in the S1 comprises a fixed box body and a movable box body; the structure of the fixed box body is symmetrical with respect to the central line of the fixed box body; the movable box bodies are arranged in the fixed box bodies, the two movable box bodies are symmetrically distributed about the central line of the fixed box bodies, an exhaust pipeline is arranged between the two movable box bodies, a channel formed between the left movable box body and the side wall of the fixed box body is used for introducing concentrated sulfuric acid, and a channel formed between the right movable box body and the side wall of the fixed box body is used for introducing hydrochloric acid; the lower end of the movable box body is connected to the bottom of the fixed box body through a first spring; the top of the movable box body is an inclined plane, a plurality of hoses are arranged in the movable box body, and the hoses are used for guiding hydrochloric acid or concentrated sulfuric acid; the upper end of the hose is communicated with and connected to the top of the movable box body, the lower end of the hose is communicated with and extends out of the side wall of the movable box body, and the lower end of the hose is arranged in the exhaust pipeline; a rotating shaft is vertically arranged at the center of the exhaust pipeline; the lower end of the rotating shaft is rotationally connected to the bottom of the fixed box body, the upper end of the rotating shaft is rotationally connected to the upper part of the exhaust pipeline through a bracket, an exhaust fan is arranged on the upper part of the rotating shaft, a plurality of groups of poking plates are arranged on the rotating shaft along the axial direction, each group of poking plates is provided with four poking plates, and the four poking plates are uniformly distributed on the circumferential direction of the rotating shaft; the lower end of the hose corresponds to the plate surface of the poking plate, the position of the left hose is obtained by the rotation degree of the right hose about the center of the rotating shaft, and the pipe diameter of the right hose is 2-3mm larger than that of the left hose; the lower part of the rotating shaft is connected with a poking gripper; the number of the shifting grippers is three, the three shifting grippers are uniformly distributed on the circumferential surface of the rotating shaft, the other ends of the shifting grippers are in contact with the number one spring, and the shifting grippers are used for shifting the number one spring;
when the device works, concentrated sulfuric acid is introduced into the left channel, hydrochloric acid is introduced into the right channel, the concentrated sulfuric acid and the hydrochloric acid respectively flow down along inclined planes in the channels, the concentrated sulfuric acid and the hydrochloric acid respectively enter a plurality of hoses correspondingly arranged on the inclined planes in the flowing down process, the concentrated sulfuric acid and the hydrochloric acid enter an exhaust pipeline through the guidance of the hoses, and the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hoses is utilized, so that the concentrated sulfuric acid and the hydrochloric acid have larger impact force when being sprayed out, the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, and the preparation efficiency of hydrogen chloride gas is improved; the sprayed concentrated sulfuric acid and hydrochloric acid push a shifting plate on a rotating shaft in an exhaust pipeline, so that the shifting plate rotates to drive the rotating shaft to rotate, thereby stirring the concentrated sulfuric acid and the hydrochloric acid, further accelerating the mixing of the concentrated sulfuric acid and the hydrochloric acid, and further improving the preparation efficiency of hydrogen chloride gas; meanwhile, the rotating shaft rotates to drive the exhaust fan to rotate, so that the flow of air is accelerated, the prepared hydrogen chloride gas is timely discharged, the hydrogen chloride gas is prevented from being accumulated in the box body, chemical reaction is easy to occur, and the preparation efficiency of the hydrogen chloride gas is influenced; the rotary shaft rotates to drive the poking gripper at the lower part of the rotary shaft to rotate, concentrated sulfuric acid and hydrochloric acid falling below the fixed box body are fully mixed under stirring of the poking gripper, so that the preparation efficiency of hydrogen chloride gas is further improved, in the rotating process of the poking gripper, the first spring is poked, the first spring is driven to shake with the movable box body, the shake of the movable box body extrudes and beats mixed liquid formed by the concentrated sulfuric acid and the hydrochloric acid, the concentrated sulfuric acid and the hydrochloric acid are further improved, and the preparation efficiency of the hydrogen chloride gas is improved; because three poking and grabbing are arranged, when one poking and grabbing is in contact with one spring, the other two poking and grabbing are not in contact with the spring, so that the two springs alternately shake, the frequency of the mixed liquid extruded and beaten by the movable box body is more disordered, the mixed liquid flows more disordered, concentrated sulfuric acid and hydrochloric acid are fully mixed, and the efficiency of hydrogen chloride gas preparation is improved; meanwhile, the shaking of the movable box body causes concentrated sulfuric acid and hydrochloric acid to be more chaotic when being sprayed out of the hose, so that the contact area of the concentrated sulfuric acid and the hydrochloric acid is enlarged, and the efficiency of preparing hydrogen chloride gas is further improved.
Preferably, the poking and grabbing device is connected to the rotating shaft through a rotating lantern ring; a cavity is formed in the rotating sleeve ring, paraffin is filled in the cavity, and a first connecting plate is arranged in the rotating sleeve ring; one end of the first connecting plate is fixed on the rotary lantern ring, the other end of the first connecting plate is contacted with the rotary shaft, and a through hole is formed in the middle of the first connecting plate; a second connecting plate is fixedly connected to the part of the rotating shaft, which is positioned in the rotating sleeve ring; the other end of the second connecting plate is contacted with the rotary lantern ring, the second connecting plate and the first connecting plate are symmetrical about the axial lead of the rotary shaft, and a second spring is correspondingly connected between the two sides of the second connecting plate and the two sides of the first connecting plate respectively; when the device is started to work, the rotating shaft rotates slowly, the frequency of the first spring which is pulled by the pulling grip is low, the impact of the first spring on the pulling grip is low, the rotating shaft speed is increased along with the continuous progress of the work, the frequency of the first spring which is pulled by the pulling grip is increased, the impact of the first spring on the pulling grip is increased, the pulling grip is easy to damage and break, however, as a great amount of heat is generated by mixing concentrated sulfuric acid and hydrochloric acid, paraffin is melted from a solid state to a liquid state by heat, when the first spring is pulled by the pulling grip, the rotating lantern ring rotates relative to the rotating shaft, the pulling grip is buffered when contacting the first spring, and the rotating lantern ring is reset through the second spring, so that the buffering of the pulling grip by the rotating lantern ring is continuous, the damage of the pulling grip is reduced, and the preparation of hydrogen chloride gas is stable; because the state of paraffin is influenced by the temperature, through set up the through-hole at the middle part of connecting plate, when making the relative pivot of rotation lantern ring take place to rotate, the paraffin that melts can flow, improves and rotates the lantern ring and to dial the cushioning effect that grabs and play, makes the gaseous preparation work of hydrogen chloride can steadily go on to improve the efficiency of gaseous preparation of hydrogen chloride.
Preferably, a liquid spraying module is arranged in the hose; the liquid spraying module comprises a baffle plate, a rubber strip, an elastic sheet and a connecting rope; the baffle plate is arranged in the hose, and square holes are formed in the baffle plate; the two rubber strips are symmetrically arranged about the square hole, the cross section of the rubber strip in the length direction is trapezoidal, the small end of the rubber strip is fixed on one side of the square hole, the large end of the rubber strip is arranged in the square hole through bending of the rubber strip, and the large ends of the two rubber strips are mutually contacted and used for blocking the square hole; one end of the elastic sheet is fixed in the hose, and the other end of the elastic sheet is contacted with the bending position of the rubber strip; one end of the connecting rope is fixed on the baffle plate, and one end of the connecting rope is fixed on the large end of the rubber strip; when the device works, in order to ensure that liquid sprayed out of the hose has certain pressure, the liquid pushes the poking plate to rotate with the poking plate, so that the work is stably carried out, and a liquid spraying module is arranged in the hose; when liquid enters the hose, the liquid pushes away two rubber strip large ends in the square hole, the large ends of the rubber strips are pulled down by the connecting rope, the two rubber strips are pushed away to a certain gap by the liquid towards the outer side of the square hole, the liquid passes through the gap between the two rubber strips and is sprayed out, when the pressure is insufficient, the rubber strips enter the square hole at the center under the action of the elastic sheet, the large ends of the two rubber strips plug the square hole again, and by arranging the liquid spraying module, the thrust acting on the poking plate after the liquid spraying is ensured, so that the hydrogen chloride gas preparation work can be stably carried out, and the hydrogen chloride gas preparation efficiency is improved.
Preferably, a liquid spraying device is arranged in the hose; the liquid spraying device comprises a liquid blocking plate, a blocking ring and a third spring; the liquid blocking plate is arranged in the hose, and a first arc-shaped hole and a second arc-shaped hole are formed in the liquid blocking plate; the two blocking rings are symmetrically arranged about the first arc hole, one end of each blocking ring is slidably connected in the second arc hole, a first lug is arranged at one end of each blocking ring, a sliding second lug is arranged in the middle of each blocking ring, a third lug is arranged at the part, close to the first arc hole, of each blocking ring, one end of each blocking ring slides in the first arc hole, and one ends of the two blocking rings are in contact with each other and used for blocking the first arc hole; when the device works, in order to ensure that liquid sprayed out of the hose has certain pressure, the liquid pushes the poking plate to rotate with the poking plate, so that the work is stably carried out, and a liquid spraying device is arranged in the hose; when liquid enters the hose, the liquid pushes away the blocking ring, when the second blocking ring contacts with the liquid blocking plate, the third protruding block on the blocking ring compresses the third spring, so that the blocking ring continuously slides along the second arc-shaped hole until the first arc-shaped hole is pushed out by the two blocking rings, the liquid is ejected out of the gap between the two blocking rings, when the pressure of the liquid is insufficient, the blocking ring reenters the first arc-shaped hole under the action of the elastic force of the third spring, water flow is prevented, and therefore the thrust acting on the shifting plate after the ejection of the liquid is ensured, the hydrogen chloride gas preparation work can be stably carried out, and the hydrogen chloride gas preparation efficiency is improved.
Preferably, a damping is arranged in the through hole; the damping is of a hollow block structure, ventilation holes penetrating through the damping are formed in the circumferential direction of the rotary sleeve ring, two rubber flow blocking sheets which are in contact with each other are arranged in the damping, the two rubber flow blocking sheets are arranged in a staggered mode and are in contact with each other in the middle, and a conical spring is connected between the two rubber flow blocking sheets and the side wall of the damping respectively; during operation, through setting up the damping, thereby rotate taking place relative rotation when extrudeing paraffin between lantern ring and the pivot after paraffin melts, the speed that paraffin passed the through-hole and flow for rotate the lantern ring and play the cushioning effect in, guarantee dial the board and stir the effect of a spring, according to the extruded dynamics of paraffin, change the clearance that rubber flow blocking piece was propped up, thereby adjust and rotate the lantern ring and play buffering dynamics, guarantee job stabilization and go on.
Preferably, the rubber flow blocking sheets are provided with a plurality of rubber bulges, and the two rubber flow blocking sheets are mutually staggered and contacted through the plurality of rubber bulges; during operation, paraffin under different temperatures, the speed that paraffin flowed is different, and the pressure that passes through between the follow rubber spoiler is different, through put the rubber arch on the rubber spoiler, makes paraffin pass through in the recess that forms between the rubber arch, and paraffin tension in the recess is great, and then has strengthened damping effect that the use, further makes the lantern ring of rotating play the cushioning effect in the time, guarantees to dial the board and stir the effect of a spring, improves the stability of work.
The beneficial effects of the invention are as follows:
1. by using the hydrogen chloride generating device, the invention ensures that the concentrated sulfuric acid and the hydrochloric acid are mixed more fully, reduces the time for mixing the concentrated sulfuric acid and the hydrochloric acid, and effectively improves the efficiency of preparing the hydrogen chloride gas.
2. The invention utilizes the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose to ensure that the concentrated sulfuric acid and the hydrochloric acid are mixed more fully, thereby improving the efficiency of preparing the hydrogen chloride gas; meanwhile, the concentrated sulfuric acid and the hydrochloric acid are sprayed out of the hose in sequence, so that the concentrated sulfuric acid and the hydrochloric acid are mixed in batches, the mixing degree of the concentrated sulfuric acid and the hydrochloric acid is improved, the time required by fully mixing the concentrated sulfuric acid and the hydrochloric acid is shortened, and the preparation efficiency of the hydrogen chloride gas is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a front view of a hydrogen chloride generating apparatus;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of the rotating collar;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
FIG. 6 is a schematic view of the structure of the spray module;
FIG. 7 is a schematic view of the structure of the liquid ejecting apparatus;
FIG. 8 is a schematic view of a rubber dam;
in the figure: the movable box body 2, the exhaust pipeline 3, the first spring 4, the hose 5, the rotating shaft 6, the exhaust fan 7, the poking plate 8, the poking grip 9, the rotating collar 10, the first connecting plate 11, the through hole 12, the second connecting plate 13, the second spring 14, the liquid spraying module 15, the baffle plate 151, the rubber strip 152, the elastic sheet 153, the connecting rope 154, the square hole 155, the liquid blocking plate 156, the blocking ring 157, the third spring 158, the first arc hole 159, the second arc hole 1510, the first bump 1511, the second bump 1512, the third bump 1513, the damping 16, the rubber blocking piece 161 and the rubber bump 162.
Detailed Description
An efficient hydrogen chloride production process according to an embodiment of the present invention will be described below with reference to fig. 1 to 8.
As shown in fig. 1 to 3, the process for preparing hydrogen chloride with high efficiency according to the present invention comprises the following steps:
s1: respectively introducing concentrated sulfuric acid and hydrochloric acid into a fixed box body of the hydrogen chloride generating device from two passage ports on the hydrogen chloride generating device; by using the hydrogen chloride generating device, the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, the time for mixing the concentrated sulfuric acid and the hydrochloric acid is reduced, and the preparation efficiency of the hydrogen chloride gas is effectively improved;
s2: the method comprises the steps that S1, the introduced concentrated sulfuric acid and hydrochloric acid flow down along the inclined plane of the movable box body, sequentially enter a plurality of hoses arranged on the inclined plane, and are sprayed into an exhaust pipeline along the hoses; the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose is utilized, so that the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, and the preparation efficiency of the hydrogen chloride gas is improved; meanwhile, the concentrated sulfuric acid and the hydrochloric acid are sprayed out of the hose in sequence, so that the concentrated sulfuric acid and the hydrochloric acid are mixed in batches, the mixing degree of the concentrated sulfuric acid and the hydrochloric acid is improved, the time required by fully mixing the concentrated sulfuric acid and the hydrochloric acid is shortened, and the preparation efficiency of the hydrogen chloride gas is improved;
s3: s2, pushing the stirring plate to rotate with the rotating shaft by the sprayed concentrated sulfuric acid and hydrochloric acid, and stirring the concentrated sulfuric acid and the hydrochloric acid by the rotating shaft to rotate with the stirring grip at the lower part of the rotating shaft; the potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hose is utilized to push the shifting plate to rotate along with the rotating shaft, so that the concentrated sulfuric acid and the hydrochloric acid are stirred, the concentrated sulfuric acid and the hydrochloric acid are mixed in an accelerating way, and the preparation efficiency of the hydrogen chloride gas is improved; meanwhile, the stirring and grabbing rotation of the lower part of the rotating shaft is utilized to stir the mixed solution, so that the mixing degree of the mixed solution is further improved, and the preparation efficiency of the hydrogen chloride gas is improved; in addition, the movable box body is dithered by poking the first spring, so that the concentrated sulfuric acid and the hydrochloric acid are mixed more fully, and the efficiency of preparing the hydrogen chloride gas is further improved;
s4: s3, extracting hydrogen chloride gas generated by mixing concentrated sulfuric acid and hydrochloric acid through an exhaust fan; the rotation of the rotating shaft is utilized to timely exhaust the generated hydrogen chloride gas by the exhaust fan, so that the generated hydrogen chloride gas is prevented from reacting with the mixed solution again, and the preparation efficiency of the hydrogen chloride gas is prevented from being influenced;
the hydrogen chloride generating device adopted in the S1 comprises a fixed box body 1 and a movable box body 2; the structure of the fixed box body 1 is symmetrical with respect to the central line of the fixed box body 1; the movable box body 2 is arranged in the fixed box body 1, two movable box bodies 2 are arranged, the two movable box bodies 2 are symmetrically distributed about the central line of the fixed box body 1, an exhaust pipeline 3 is arranged between the two movable box bodies 2, a channel formed between the left movable box body 2 and the side wall of the fixed box body 1 is used for introducing concentrated sulfuric acid, and a channel formed between the right movable box body 2 and the side wall of the fixed box body 1 is used for introducing hydrochloric acid; the lower end of the movable box body 2 is connected to the bottom of the fixed box body 1 through a first spring 4; the top of the movable box body 2 is an inclined plane, a plurality of hoses 5 are arranged in the movable box body 2, and the hoses 5 are used for guiding the flow of hydrochloric acid or concentrated sulfuric acid; the upper end of the hose 5 is communicated with and connected to the top of the movable box body 2, the lower end of the hose 5 is communicated with and extends out of the side wall of the movable box body 2, and the lower end of the hose 5 is arranged in the exhaust pipeline 3; a rotating shaft 6 is vertically arranged at the center of the exhaust pipeline 3; the lower end of the rotating shaft 6 is rotationally connected to the bottom of the fixed box body 1, the upper end of the rotating shaft 6 is rotationally connected to the upper part of the exhaust pipeline 3 through a bracket, an exhaust fan 7 is arranged on the upper part of the rotating shaft 6, a plurality of groups of poking plates 8 are arranged on the rotating shaft 6 along the axial direction, each group of poking plates 8 is provided with four poking plates 8, and the four poking plates 8 are uniformly distributed on the circumferential direction of the rotating shaft 6; the lower end of the hose 5 corresponds to the plate surface of the poking plate 8, the position of the left hose 5 is obtained by rotating the right hose 5 by 180 degrees about the center of the rotating shaft 6, and the pipe diameter of the right hose 5 is 2-3mm larger than that of the left hose 5; the lower part of the rotating shaft 6 is connected with a poking grab 9; the number of the shifting grippers 9 is three, the three shifting grippers 9 are uniformly distributed on the circumferential surface of the rotating shaft 6, the other end of each shifting gripper 9 is in contact with the number one spring 4, and each shifting gripper 9 is used for shifting the number one spring 4;
when the device works, concentrated sulfuric acid is introduced into the left channel, hydrochloric acid is introduced into the right channel, the concentrated sulfuric acid and the hydrochloric acid respectively flow down along inclined planes in the channels, the concentrated sulfuric acid and the hydrochloric acid respectively enter a plurality of hoses 5 correspondingly arranged on the inclined planes in the flowing down process, the concentrated sulfuric acid and the hydrochloric acid enter the exhaust pipeline 3 through the guidance of the hoses 5, and potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hoses 5 is utilized, so that the concentrated sulfuric acid and the hydrochloric acid have larger impact force when being sprayed out, the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, and the preparation efficiency of hydrogen chloride gas is improved; the sprayed concentrated sulfuric acid and hydrochloric acid push the poking plate 8 on the rotating shaft 6 in the exhaust pipeline 3, so that the poking plate 8 rotates to drive the rotating shaft 6 to rotate, thereby stirring the concentrated sulfuric acid and the hydrochloric acid, further accelerating the mixing of the concentrated sulfuric acid and the hydrochloric acid, and further improving the preparation efficiency of the hydrogen chloride gas; meanwhile, the rotating shaft 6 rotates to drive the exhaust fan 7 to rotate, so that the flow of air is accelerated, the prepared hydrogen chloride gas is timely discharged, the hydrogen chloride gas is prevented from being accumulated in the box body, chemical reaction is easy to occur, and the preparation efficiency of the hydrogen chloride gas is influenced; the rotary shaft 6 rotates to drive the poking and grabbing 9 at the lower part of the rotary shaft 6 to rotate, concentrated sulfuric acid and hydrochloric acid falling below the fixed box body 1 are fully mixed under stirring of the poking and grabbing 9, so that the hydrogen chloride gas preparation efficiency is further improved, in the rotating process of the poking and grabbing 9, the first spring 4 is poked, the first spring 4 is driven to shake with the movable box body 2, the shaking of the movable box body 2 extrudes and beats mixed liquor formed by the concentrated sulfuric acid and the hydrochloric acid, the mixing degree of the concentrated sulfuric acid and the hydrochloric acid is further improved, and the hydrogen chloride gas preparation efficiency is improved; because three poking and grabbing 9 are arranged, when one poking and grabbing 9 contacts one spring 4, the other two poking and grabbing 9 does not contact the spring 4, so that the two springs 4 alternately shake, the frequency of extruding and beating the mixed liquid of the movable box body 2 is more disordered, the flow of the mixed liquid is more disordered, concentrated sulfuric acid and hydrochloric acid are fully mixed, and the preparation efficiency of hydrogen chloride gas is improved; meanwhile, the shaking of the movable box body 2 causes concentrated sulfuric acid and hydrochloric acid to be more chaotic when being sprayed out of the hose 5, so that the contact area of the concentrated sulfuric acid and the hydrochloric acid is enlarged, and the efficiency of preparing hydrogen chloride gas is further improved.
As shown in fig. 4 and 5, the pulling grip 9 is connected to the rotating shaft 6 through a rotating collar 10; a cavity is formed in the rotary lantern ring 10, paraffin is filled in the cavity, and a first connecting plate 11 is arranged in the rotary lantern ring 10; one end of the first connecting plate 11 is fixed on the rotary lantern ring 10, the other end of the first connecting plate 11 is in contact with the rotary shaft 6, and a through hole 12 is formed in the middle of the first connecting plate 11; a second connecting plate 13 is fixedly connected to the part of the rotating shaft 6 positioned in the rotating lantern ring 10; the other end of the second connecting plate 13 is in contact with the rotary lantern ring 10, the second connecting plate 13 and the first connecting plate 11 are symmetrical about the axial lead of the rotary shaft 6, and a second spring 14 is correspondingly connected between the two sides of the second connecting plate 13 and the two sides of the first connecting plate 11 respectively; when the device starts to work, the frequency of stirring the first spring 4 by the stirring claw 9 is slower, the impact generated by the stirring claw 9 on the first spring 4 is smaller, the speed of the rotating shaft 6 is increased along with the continuous progress of the work, the frequency of stirring the first spring 4 by the stirring claw 9 is increased, the impact generated by the stirring claw 9 on the first spring 4 is increased, so that the stirring claw 9 is easy to damage and break, however, as a great amount of heat is generated by mixing concentrated sulfuric acid and hydrochloric acid, paraffin is melted from a solid state to a liquid state, when the stirring claw 9 stirs the first spring 4, the rotating lantern ring 10 rotates relative to the rotating shaft 6, so that the stirring claw 9 is buffered when contacting the first spring 4, and the rotating lantern ring 10 is reset through the second spring 14, so that the buffering of the stirring claw 9 by the rotating lantern ring 10 is continued, the damage of the stirring claw 9 is reduced, and the preparation of hydrogen chloride gas is stable; because the state of paraffin is influenced by temperature, through set up through-hole 12 at the middle part of connecting plate 11, when making rotation lantern ring 10 take place to rotate relative pivot 6, the paraffin that melts can flow, improves the cushioning effect that rotation lantern ring 10 played to dialling and grab 9, makes the gaseous preparation work of hydrogen chloride can steadily go on to improve the efficiency of gaseous preparation of hydrogen chloride.
As shown in fig. 6, a liquid spraying module 15 is arranged in the hose 5; the liquid spraying module 15 comprises a baffle plate 151, a rubber strip 152, an elastic sheet 153 and a connecting rope 154; the baffle plate 151 is arranged in the hose 5, and square holes 155 are formed in the baffle plate 151; the two rubber strips 152 are symmetrically arranged about the square hole 155, the cross section of the rubber strip 152 in the length direction is trapezoidal, the small end of the rubber strip 152 is fixed on one side of the square hole 155, the large end of the rubber strip 152 is arranged in the square hole 155 through the bending of the rubber strip 152, and the large ends of the two rubber strips 152 are mutually contacted to block the square hole 155; one end of the elastic piece 153 is fixed in the hose 5, and the other end of the elastic piece 153 is contacted with the bending position of the rubber strip 152; one end of the connecting rope 154 is fixed on the baffle plate 151, and one end of the connecting rope 154 is fixed on the large end of the rubber strip 152; in order to ensure that the liquid sprayed from the hose 5 has certain pressure during operation, the liquid pushes the poking plate 8 to rotate with the poking plate 8, so that the operation is stably carried out, and a liquid spraying module 15 is arranged in the hose 5; when liquid enters the hose 5, the liquid pushes the large ends of the two rubber strips 152 in the square hole 155, the large ends of the rubber strips 152 are pulled by the connecting rope 154, the two rubber strips 152 are pushed to a certain gap by the liquid towards the outer side of the square hole 155, the liquid passes through the gap between the two rubber strips 152 and is sprayed out, when the pressure is insufficient, the rubber strips 152 enter the square hole 155 at the center under the action of the elastic sheet 153, and the large ends of the two rubber strips 152 block the square hole 155 again, by arranging the liquid spraying module 15, the thrust acting on the poking plate 8 after the liquid is sprayed is ensured, so that the hydrogen chloride gas preparation work can be stably carried out, and the hydrogen chloride gas preparation efficiency is improved.
As shown in fig. 7, a liquid spraying module 15 is arranged in the hose 5; the liquid spraying module 15 comprises a liquid blocking plate 156, a blocking ring 157 and a third spring 158; the liquid-blocking plate 156 is arranged in the hose 5, and a first arc-shaped hole 159 and a second arc-shaped hole 1510 are arranged on the liquid-blocking plate 156; the two blocking rings 157 are symmetrically arranged about the first arc hole 159, one end of the blocking ring 157 is slidably connected in the second arc hole 1510, a first bump 1511 is arranged at one end of the blocking ring 157, a second bump 1512 is arranged in the middle of the blocking ring 157, a third bump 1513 is arranged at a part of the blocking ring 157 close to the first arc hole 159, one ends of the two blocking rings 157 are slidably arranged in the first arc hole 159, and one ends of the two blocking rings 157 are in contact with each other to block the first arc hole 159; in order to ensure that the liquid sprayed from the hose 5 has certain pressure during operation, the liquid pushes the poking plate 8 to rotate with the poking plate 8, so that the operation is stably carried out, and a liquid spraying module 15 is arranged in the hose 5; when liquid enters the hose 5, the liquid pushes the blocking ring 157 away, when the second blocking ring 157 is in contact with the liquid blocking plate 156, the third bump 1513 on the blocking ring 157 compresses the third spring 158, so that the blocking ring 157 continuously slides along the second arc hole 1510 until the two blocking rings 157 are pushed out of the first arc hole 159, the liquid is sprayed out from the gap between the two blocking rings 157, when the pressure of the liquid is insufficient, the blocking ring 157 reenters the first arc hole 159 under the elastic force of the third spring 158, and water flow is prevented from passing through, thereby ensuring the thrust acting on the poking plate 8 after the liquid is sprayed out, so that the hydrogen chloride gas preparation work can be stably performed, and the efficiency of the hydrogen chloride gas preparation is improved.
As shown in fig. 5, a damper 16 is disposed in the through hole 12; the damping 16 is of a hollow block structure, ventilation holes penetrating through the damping 16 are formed in the damping 16 along the circumferential direction of the rotary lantern ring 10, two rubber flow blocking sheets 161 which are in contact with each other are arranged inside the damping 16, the two rubber flow blocking sheets 161 are arranged in a staggered manner and are in contact with each other at the middle part, and a conical spring is respectively connected between the two rubber flow blocking sheets 161 and the side wall of the damping 16; during operation, through setting up damping 16, thereby when paraffin melts the back, rotates taking place relative rotation between lantern ring 10 and the pivot 6 and when squeezing paraffin, the speed that paraffin passed through-hole 12 flows for rotate lantern ring 10 when playing the cushioning effect, guarantee dial plate 8 stir the effect of spring 4, according to the extruded dynamics of paraffin, change the clearance that rubber flow blocking piece 161 was propped up, thereby adjust and rotate lantern ring 10 and play the buffering dynamics, guarantee that job stabilization goes on.
As shown in fig. 8, the rubber spoiler 161 is provided with a plurality of rubber protrusions 162, and the two rubber spoilers 161 are contacted with each other in a staggered manner through the plurality of rubber protrusions 162; during operation, paraffin under different temperatures, the paraffin flow rate is different, and the pressure that passes through between the rubber flow blocking piece 161 is different, through put the rubber arch 162 on the rubber flow blocking piece 161, makes paraffin pass through from the recess that forms between the rubber arch 162, and the tension of paraffin in the recess is great, and then has strengthened the effect that damping 16 used, further makes the rotation lantern ring 10 when playing the cushioning effect, guarantees the effect that the first spring 4 was stirred to the plectrum 8, improves the stability of work.
The specific working mode is as follows:
when the device works, concentrated sulfuric acid is introduced into the left channel, hydrochloric acid is introduced into the right channel, the concentrated sulfuric acid and the hydrochloric acid respectively flow down along inclined planes in the channels, the concentrated sulfuric acid and the hydrochloric acid respectively enter a plurality of hoses 5 correspondingly arranged on the inclined planes in the flowing down process, the concentrated sulfuric acid and the hydrochloric acid enter the exhaust pipeline 3 through the guidance of the hoses 5, and potential energy generated when the concentrated sulfuric acid and the hydrochloric acid flow in the hoses 5 is utilized, so that the concentrated sulfuric acid and the hydrochloric acid have larger impact force when being sprayed out, the mixture of the concentrated sulfuric acid and the hydrochloric acid is more sufficient, and the preparation efficiency of hydrogen chloride gas is improved; the sprayed concentrated sulfuric acid and hydrochloric acid push the poking plate 8 on the rotating shaft 6 in the exhaust pipeline 3, so that the poking plate 8 rotates to drive the rotating shaft 6 to rotate, thereby stirring the concentrated sulfuric acid and the hydrochloric acid, further accelerating the mixing of the concentrated sulfuric acid and the hydrochloric acid, and further improving the preparation efficiency of the hydrogen chloride gas; meanwhile, the rotating shaft 6 rotates to drive the exhaust fan 7 to rotate, so that the flow of air is accelerated, the prepared hydrogen chloride gas is timely discharged, the hydrogen chloride gas is prevented from being accumulated in the box body, chemical reaction is easy to occur, and the preparation efficiency of the hydrogen chloride gas is influenced; the rotary shaft 6 rotates to drive the poking and grabbing 9 at the lower part of the rotary shaft 6 to rotate, concentrated sulfuric acid and hydrochloric acid falling below the fixed box body 1 are fully mixed under stirring of the poking and grabbing 9, so that the hydrogen chloride gas preparation efficiency is further improved, in the rotating process of the poking and grabbing 9, the first spring 4 is poked, the first spring 4 is driven to shake with the movable box body 2, the shaking of the movable box body 2 extrudes and beats mixed liquor formed by the concentrated sulfuric acid and the hydrochloric acid, the mixing degree of the concentrated sulfuric acid and the hydrochloric acid is further improved, and the hydrogen chloride gas preparation efficiency is improved; because three poking and grabbing 9 are arranged, when one poking and grabbing 9 contacts one spring 4, the other two poking and grabbing 9 does not contact the spring 4, so that the two springs 4 alternately shake, the frequency of extruding and beating the mixed liquid of the movable box body 2 is more disordered, the flow of the mixed liquid is more disordered, concentrated sulfuric acid and hydrochloric acid are fully mixed, and the preparation efficiency of hydrogen chloride gas is improved; meanwhile, the shaking of the movable box body 2 causes concentrated sulfuric acid and hydrochloric acid to be more chaotic when being sprayed out of the hose 5, so that the contact area of the concentrated sulfuric acid and the hydrochloric acid is enlarged, and the efficiency of preparing hydrogen chloride gas is further improved.
In the description of the present invention, it should be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (1)
1. A preparation process of high-efficiency hydrogen chloride is characterized in that: the process comprises the following steps:
s1: respectively introducing concentrated sulfuric acid and hydrochloric acid into a fixed box body of the hydrogen chloride generating device from two passage ports on the hydrogen chloride generating device;
s2: the method comprises the steps that S1, the introduced concentrated sulfuric acid and hydrochloric acid flow down along the inclined plane of the movable box body, sequentially enter a plurality of hoses arranged on the inclined plane, and are sprayed into an exhaust pipeline along the hoses;
s3: s2, pushing the stirring plate to rotate with the rotating shaft by the sprayed concentrated sulfuric acid and hydrochloric acid, and stirring the concentrated sulfuric acid and the hydrochloric acid by the rotating shaft to rotate with the stirring grip at the lower part of the rotating shaft;
s4: s3, extracting hydrogen chloride gas generated by mixing concentrated sulfuric acid and hydrochloric acid through an exhaust fan;
the hydrogen chloride generating device adopted in the S1 comprises a fixed box body (1) and a movable box body (2); the structure of the fixed box body (1) is symmetrical with respect to the central line of the fixed box body (1); the movable box bodies (2) are arranged in the fixed box body (1), the two movable box bodies (2) are symmetrically distributed about the central line of the fixed box body (1), an exhaust pipeline (3) is arranged between the two movable box bodies (2), a channel formed between the left movable box body (2) and the side wall of the fixed box body (1) is used for introducing concentrated sulfuric acid, and a channel formed between the right movable box body (2) and the side wall of the fixed box body (1) is used for introducing hydrochloric acid; the lower end of the movable box body (2) is connected to the bottom of the fixed box body (1) through a first spring (4); the top of the movable box body (2) is an inclined plane, a plurality of hoses (5) are arranged in the movable box body (2), and the hoses (5) are used for guiding hydrochloric acid or concentrated sulfuric acid; the upper end of the hose (5) is communicated with and connected to the top of the movable box body (2), the lower end of the hose (5) is communicated with and extends out of the side wall of the movable box body (2), and the lower end of the hose (5) is arranged in the exhaust pipeline (3); a rotating shaft (6) is vertically arranged at the center of the exhaust pipeline (3); the lower end of the rotating shaft (6) is rotationally connected to the bottom of the fixed box body (1), the upper end of the rotating shaft (6) is rotationally connected to the upper part of the exhaust pipeline (3) through a bracket, an exhaust fan (7) is arranged on the upper part of the rotating shaft (6), a plurality of groups of shifting plates (8) are arranged on the rotating shaft (6) along the axial direction, four shifting plates (8) are arranged in each group, and the four shifting plates (8) are uniformly distributed on the circumferential direction of the rotating shaft (6); the lower end of the hose (5) corresponds to the plate surface of the shifting plate (8), the position of the left hose (5) is obtained by rotating the right hose (5) 180 degrees around the center of the rotating shaft (6), and the pipe diameter of the right hose (5) is 2-3mm larger than that of the left hose (5); the lower part of the rotating shaft (6) is connected with a poking grab (9); the number one spring (4) is arranged on the rotary shaft (6), the number one spring is arranged on the rotary shaft (6), and the number one spring (4) is arranged on the rotary shaft (9);
the poking gripper (9) is connected to the rotating shaft (6) through a rotating lantern ring (10); a cavity is formed in the rotary lantern ring (10), paraffin is filled in the cavity, and a first connecting plate (11) is arranged in the rotary lantern ring (10); one end of the first connecting plate (11) is fixed on the rotary sleeve ring (10), the other end of the first connecting plate (11) is in contact with the rotary shaft (6), and a through hole (12) is formed in the middle of the first connecting plate (11); a second connecting plate (13) is fixedly connected to the part of the rotating shaft (6) positioned in the rotating sleeve ring (10); the other end of the second connecting plate (13) is in contact with the rotary lantern ring (10), the second connecting plate (13) and the first connecting plate (11) are symmetrical about the axial lead of the rotary shaft (6), and a second spring (14) is correspondingly connected between the two sides of the second connecting plate (13) and the two sides of the first connecting plate (11) respectively;
a liquid spraying module (15) is arranged in the hose (5); the liquid spraying module (15) comprises a baffle plate (151), a rubber strip (152), an elastic sheet (153) and a connecting rope (154); the baffle plate (151) is arranged in the hose (5), and square holes (155) are formed in the baffle plate (151); the two rubber strips (152) are symmetrically arranged about the square hole (155), the cross section of the rubber strips (152) in the length direction is trapezoid, the small end of each rubber strip (152) is fixed on one side of the square hole (155), the large end of each rubber strip (152) is arranged in the square hole (155) through bending of the corresponding rubber strip (152), and the large ends of the two rubber strips (152) are mutually contacted and used for blocking the square hole (155); one end of the elastic sheet (153) is fixed in the hose (5), and the other end of the elastic sheet (153) is contacted with the bending position of the rubber strip (152); one end of the connecting rope (154) is fixed on the baffle plate (151), and one end of the connecting rope (154) is fixed on the large end of the rubber strip (152);
the liquid spraying module (15) comprises a liquid blocking plate (156), a blocking ring (157) and a third spring (158); the liquid blocking plate (156) is arranged in the hose (5), and a first arc-shaped hole (159) and a second arc-shaped hole (1510) are formed in the liquid blocking plate (156); two blocking rings (157) are symmetrically arranged about a first arc hole (159), one end of each blocking ring (157) is slidably connected in a second arc hole (1510), a first bump (1511) is arranged at one end of each blocking ring (157), a second bump (1512) is arranged in the middle of each blocking ring (157), a third bump (1513) is arranged at the part, close to the first arc hole (159), of each blocking ring (157), one end of each blocking ring (157) is slidably arranged in the corresponding first arc hole (159), and one ends of the two blocking rings (157) are mutually contacted and used for blocking the corresponding first arc hole (159);
damping (16) is arranged in the through hole (12); the damping device is characterized in that the damping device is of a hollow block structure, ventilation holes penetrating through the damping device (16) are formed in the damping device (16) along the circumferential direction of the rotary sleeve ring (10), two rubber flow blocking sheets (161) which are in contact with each other are arranged in the damping device (16), the two rubber flow blocking sheets (161) are arranged in a staggered mode and are in contact with each other at the middle part, and a conical spring is connected between the two rubber flow blocking sheets (161) and the side wall of the damping device (16);
the rubber flow blocking sheets (161) are provided with a plurality of rubber bulges (162), and the two rubber flow blocking sheets (161) are mutually staggered and contacted through the plurality of rubber bulges (162).
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| CN109052323B (en) * | 2018-09-10 | 2020-10-02 | 马鞍山欧格萨斯机械科技有限公司 | Hydrochloric acid recovery, concentration and regeneration method |
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