CN210892781U - Sulfur dioxide air cooler - Google Patents
Sulfur dioxide air cooler Download PDFInfo
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- CN210892781U CN210892781U CN201921438501.2U CN201921438501U CN210892781U CN 210892781 U CN210892781 U CN 210892781U CN 201921438501 U CN201921438501 U CN 201921438501U CN 210892781 U CN210892781 U CN 210892781U
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Abstract
The utility model relates to the technical field of sulfur dioxide production equipment, and discloses a sulfur dioxide air cooler, which comprises a cooling box and a cooling pipe which are fixed with each other, wherein an air inlet box and an air outlet box are respectively and fixedly arranged on two sides of the cooling box, one end of the cooling pipe is communicated with the air inlet box, and the other end of the cooling pipe is communicated with the air outlet box; the air inlet box is communicated with an air inlet pipe, a filter screen is fixedly arranged in the air inlet box, and the air inlet pipe and the cooling pipe are respectively positioned on two sides of the filter screen. This scheme of adoption can filter the sulfur dioxide gas mixture to reduce the condition that the cooling tube is corroded or is blockked up, prolonged the life of cooling tube.
Description
Technical Field
The utility model relates to a technical field of sulfur dioxide's production facility, concretely relates to sulfur dioxide air cooler.
Background
Waste residues and waste liquid containing highly toxic chromium (VI) (hereinafter collectively referred to as chromium-containing waste) are generated in the production process of chromium salt, because the chromium (VI) is one of highly toxic elements, the direct discharge of the chromium (VI) can cause serious pollution to the environment, and the contact or intake of human bodies can cause serious injuries such as skin ulceration, respiratory inflammation, anemia, neuritis and the like. Therefore, the chromium-containing waste needs to be harmlessly treated, and the chromium (VI) with higher toxicity is mainly reduced into chromium with lower toxicity(III) or metallic chromium (0), and the reduction of chromium-containing wastes is mainly carried out by using an SO2 reduction method at present. The production process of SO2 comprises adding bagged flaky sulfur into a sulfur bin, starting a Roots blower, starting a sulfur adding screw, adjusting air quantity and sulfur inlet quantity to make furnace temperature reach 300-500 deg.C and air pressure 15-25 kPa, cooling the generated sulfur dioxide mixture, washing in a first washer and a second washer to obtain SO2And (3) introducing mixed furnace gas with the content of 8-10% into an absorption tower to reduce the hexavalent chromium solution in the chromium-containing wastewater. The temperature of the sulfur dioxide mixed gas can reach 200-300 ℃, and if the temperature is not reduced, the high-temperature sulfur dioxide mixed gas is easy to damage subsequent production equipment and can also have serious influence on the reduction efficiency of hexavalent chromium.
However, conventional cooling is generally performed by air coils, and there are disadvantages in using the conventional cooling method: the bottom at air coil is the place that the sulfurous acid waste liquid that sulfur dioxide and vapor reaction produced piles up, if untimely discharge accumulational sulfurous acid waste liquid, this kind of waste liquid can lead to the fact the corruption to air coil, generate the dust easily and pile up easily in air coil after the organic matter burning that mix with in the raw materials sulphur simultaneously, and traditional air coil is difficult to discharge sulfurous acid waste liquid and ash content, so lead to air coil to receive to corrode seriously easily, the condition of jam still appears easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is anticipated to provide the sulfur dioxide air cooler to solve the technical problem that prior art's cooling tube is corroded or is blockked up easily.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the sulfur dioxide air cooler comprises a cooling box and a cooling pipe which are fixed with each other, wherein the cooling pipe is positioned in the cooling box, an air inlet box and an air outlet box are respectively and fixedly arranged on two sides of the cooling box, one end of the cooling pipe is communicated with the air inlet box, and the other end of the cooling pipe is communicated with the air outlet box; the air inlet box is communicated with an air inlet pipe, a filter screen is fixedly arranged in the air inlet box, and the air inlet pipe and the cooling pipe are respectively positioned on two sides of the filter screen.
The principle and the advantages of the scheme are as follows:
1) the cooling box is used for storing cooling liquid, and the cooling pipe is arranged in the cooling box, so that the cooling liquid can completely soak the cooling pipe in the cooling box, and the cooling effect of the sulfur dioxide mixed gas is better;
2) the air inlet box can buffer the sulfur dioxide mixed gas and slow down the speed of the sulfur dioxide mixed gas, so that the sulfur dioxide mixed gas can exchange heat with the cooling liquid more fully;
3) meanwhile, a filter screen is fixedly arranged in the cooling box, dust generated by sulfur combustion can be filtered, and the condition that the cooling pipe is blocked due to deposition of the cooling pipe after the dust enters the cooling pipe is avoided.
Preferably, as an improvement, the cooling pipe is provided with a plurality of in parallel, and a plurality of cooling pipes all communicate with the inlet box and the outlet box.
According to the scheme, the plurality of cooling pipes are arranged in the cooling box, so that the amount of sulfur dioxide mixed gas cooled at a single time is larger, the time consumed for cooling the sulfur dioxide mixed gas is shorter, and the cooling speed of the sulfur dioxide mixed gas is increased; meanwhile, the plurality of cooling pipes can increase the surface area and accelerate heat transfer, so that the time consumption for cooling the sulfur dioxide mixed gas with the same amount is less.
Preferably, as a modification, the cooling pipe is a continuous S-shaped profiled pipe.
This scheme uses the mechanical tubes of S-shaped, can reduce the space proportion of cooling tube when increasing the sulfur dioxide gas mixture stroke, makes the user realize the cooling to the sulfur dioxide gas mixture in littleer cooler bin.
Preferably, as an improvement, the cooling box is communicated with a water inlet pipe and a water outlet pipe, and the pipe orifice of the water inlet pipe is lower than the pipe orifice of the water outlet pipe.
The scheme ensures that the resistance of the cooling liquid (or cooling water) entering the cooling box is greater than the resistance of the cooling water flowing out of the cooling box, thereby avoiding the situation that the cooling liquid flows out of the water outlet pipe immediately after entering the cooling box and improving the utilization efficiency of the cooling liquid.
Preferably, as an improvement, a circular through hole is formed in the cooling pipe at a position close to the bottom of the cooling box, and a bottom cover is detachably connected to the through hole.
Because the waste liquid and the dust fall to the bottom of the cooling pipe downwards under the action of gravity, the scheme enables a user to avoid the blockage of the cooling pipe by regularly disassembling the bottom of the cooling pipe and cleaning the bottom of the cooling pipe; simultaneously, because the waste liquid gathers can lead to the serious condition of cooling tube local corrosion at the bottommost of cooling tube, this scheme designs into the detachable bottom with the bottom of cooling tube and makes the user replace the whole cooling tube of change through changing the bottom to reduce the maintenance cost of cooling tube, prolonged the life of cooling tube.
Preferably, as an improvement, the through hole is coaxially and fixedly provided with a return pipe.
The scheme further enlarges the capacity at the bottom of the cooling pipe, so that the waste liquid is gathered to the position of the return pipe, and the condition that the waste liquid corrodes the cooling pipe is thoroughly avoided.
Preferably, as an improvement, the bottom cover is a truncated cone-shaped plug, and the plugs correspond to the through holes one by one.
This scheme adopts the stopper to seal the mouth of pipe of back flow, simple structure, convenient operation.
Preferably, as a modification, the lower side of the stopper is provided with a connecting plate to which the stopper is fixed.
This scheme is passed through the connecting plate and is fixed the stopper together, is favorable to the fixed to the cooling tube, has avoided the bottom of cooling tube to take place the wobbling condition.
Preferably, as an improvement, the mesh size on the filter screen is 200 μm to 300 μm.
The scheme ensures that dust with the diameter larger than 300 mu m in the sulfur dioxide mixed gas can not cool the pipe, thereby reducing the risk of blockage of the cooling pipe.
Preferably, as an improvement, the cooling box, the air inlet box and the air outlet box are all detachably and fixedly connected with upper covers.
This scheme designs into detachable with the upper cover, makes the user open the upper cover, is convenient for overhaul the inside of cooler bin, inlet box or the case of giving vent to anger.
Drawings
Fig. 1 is a schematic diagram of an oblique two-axis side view of a sulfur dioxide air cooler of the present invention after removing the upper cover.
Fig. 2 is a top view of the embodiment of the present invention after the upper cover is removed.
Fig. 3 is a front cross-sectional view of the first embodiment of the present invention, and the cutting direction is the direction a-a in fig. 2.
Fig. 4 is a front cross-sectional view of the second embodiment of the present invention, and the cutting direction is the direction a-a of fig. 2.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the cooling device comprises a cooling box 1, a cooling pipe 2, an air inlet box 3, an air outlet box 4, a filter screen 5, an air inlet pipe 6, an air outlet pipe 7, an water inlet pipe 8, a water outlet pipe 9, a return pipe 10, a bottom cover 11, a connecting plate 12 and an upper cover 13.
Example one
As shown in figures 1, 2 and 3: the sulfur dioxide air cooler comprises a cooling box 1 and a cooling pipe 2 which are fixedly clamped with each other, the cooling pipe 2 is a special pipe which is continuously distributed in an S shape, the cooling pipe 2 is arranged in parallel, five examples are drawn in figure 2, and the middle part of the cooling pipe 2 is positioned in the cooling box 1; as shown in fig. 3, the left end and the right end of the cooling box 1 are respectively fixedly connected with an air inlet box 3 and an air outlet box 4 through screws, the cooling box 1, the air inlet box 3 and the air outlet box 4 are respectively fixedly connected with an upper cover 13 through bolts, the left end of the cooling pipe 2 is communicated with the air inlet box 3 through a through hole, and the right end of the cooling pipe 2 is communicated with the air outlet box 4 through a through hole; the left end of the air inlet box 3 is communicated with an air inlet pipe 6, a filter screen 5 is vertically and fixedly clamped in the air inlet box 3, the size of a screen hole on the filter screen 5 is 200 mu m, and the air inlet pipe 6 and the cooling pipe 2 are respectively positioned at two sides of the filter screen 5; the right end of the gas outlet box 4 is communicated with a gas outlet pipe 7.
The cooling box 1 is communicated with a water inlet pipe 8 and a water outlet pipe 9, and the pipe orifice of the water inlet pipe 8 is lower than the pipe orifice of the water outlet pipe 9.
The specific implementation process is as follows: cooling liquid (or cooling water) enters the cooling box 1 through the water inlet pipe 8, when the cooling liquid in the cooling box 1 reaches a preset amount, sulfur dioxide mixed gas enters the air inlet box 3 through the air inlet pipe 6, and the sulfur dioxide mixed gas is filtered by the filter screen 5 in the air inlet box 3, so that the condition that dust with large particle size enters the cooling pipe 2 is avoided; the filtered sulfur dioxide mixed gas automatically shunts into five cooling pipes 2 and is cooled in the cooling pipes 2; after cooling, the sulfur dioxide gas mixture passes through the gas outlet box 4 and enters the gas outlet pipe 7 to be discharged. The cooling box 1 is used for storing cooling liquid, and the cooling pipe 2 is arranged in the cooling box 1, so that the cooling liquid can completely soak the cooling pipe 2 in the cooling box 1, and the cooling effect of the sulfur dioxide mixed gas is better; the diameter of the section of the air inlet box 3 is larger than that of the air inlet pipe 6, and the blocking effect of the filter screen 5 is added, so that the sulfur dioxide mixed gas flowing out of the air inlet pipe 6 can be buffered, the speed of the sulfur dioxide mixed gas is reduced, and the sulfur dioxide mixed gas can be subjected to heat exchange with cooling liquid more fully; meanwhile, a filter screen 5 is fixedly arranged in the cooling box 1, so that dust generated by combustion of sulfur can be filtered, and the condition that the cooling pipe 2 is blocked due to deposition in the cooling pipe 2 after the dust enters the cooling pipe 2 is avoided; the filter screen 5 is clamped in the cooling box 1, so that the filter screen 5 can be conveniently replaced.
Example two
As shown in fig. 4, the difference between the present embodiment and the first embodiment is that a circular through hole is formed in the cooling pipe 2 near the bottom of the cooling tank 1, and a vertically arranged return pipe 10 is coaxially fixed to the through hole in a threaded manner; the return pipe 10 is detachably connected with a bottom cover 11, wherein the bottom cover 11 is a truncated cone-shaped plug, the plugs and the through holes correspond to each other one by one, and in the actual production process, the bottom cover 11 can be designed into a sleeve cover or other forms which are spirally connected to the outer side of the return pipe 10. The lower side of the plug is provided with a connecting plate 12, and the plug is detachably fixed on the connecting plate 12 in a clamping manner.
When the scheme is used, a user can clean the bottom of the cooling pipe 2 by periodically taking off the plug, so that the situation of avoiding the blockage of the cooling pipe 2 is achieved; meanwhile, because the waste liquid is gathered at the bottommost part of the cooling pipe 2 to cause the local corrosion of the cooling pipe 2 to be serious, the bottom of the cooling pipe 2 is designed into the detachable bottom cover 11 by the scheme, so that a user can replace the whole cooling pipe 2 by replacing the bottom cover 11 or the return pipe 10, the maintenance cost of the cooling pipe 2 is reduced, and the service life of the cooling pipe 2 is prolonged. Meanwhile, the plug is fixed together by the connecting plate 12, so that the cooling pipe 2 is fixed, and the condition that the bottom of the cooling pipe 2 swings is avoided.
The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Sulfur dioxide air cooler, its characterized in that: the cooling device comprises a cooling box and a cooling pipe which are fixed with each other, wherein the cooling pipe is positioned in the cooling box, an air inlet box and an air outlet box are respectively and fixedly arranged on two sides of the cooling box, one end of the cooling pipe is communicated with the air inlet box, and the other end of the cooling pipe is communicated with the air outlet box; the air inlet box is communicated with an air inlet pipe, a filter screen is fixedly arranged in the air inlet box, and the air inlet pipe and the cooling pipe are respectively positioned on two sides of the filter screen.
2. The sulfur dioxide air cooler of claim 1, wherein: the cooling pipes are arranged in parallel, and the plurality of cooling pipes are communicated with the air inlet box and the air outlet box.
3. The sulfur dioxide air cooler of claim 1, wherein: the cooling pipe is a special pipe which is distributed in a continuous S shape.
4. The sulfur dioxide air cooler of claim 1, wherein: the cooling box is communicated with a water inlet pipe and a water outlet pipe, and the pipe orifice of the water inlet pipe is lower than the pipe orifice of the water outlet pipe.
5. The sulfur dioxide air cooler of claim 1, wherein: a circular through hole is formed in the position, close to the bottom of the cooling box, of the cooling pipe, and a bottom cover is detachably connected to the through hole.
6. The sulfur dioxide air cooler of claim 5, wherein: a return pipe is coaxially and fixedly arranged on the through hole.
7. The sulfur dioxide air cooler of claim 5, wherein: the bottom cover is a truncated cone-shaped plug, and the plug is in one-to-one correspondence with the through holes.
8. The sulfur dioxide air cooler of claim 7, wherein: the lower side of the plug is provided with a connecting plate, and the plug is fixed on the connecting plate.
9. The sulfur dioxide air cooler of claim 1, wherein: the size of the sieve holes on the filter screen is 200-300 μm.
10. The sulfur dioxide air cooler of claim 1, wherein: and the cooling box, the air inlet box and the air outlet box are fixedly connected with upper covers in a detachable mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438501.2U CN210892781U (en) | 2019-08-30 | 2019-08-30 | Sulfur dioxide air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438501.2U CN210892781U (en) | 2019-08-30 | 2019-08-30 | Sulfur dioxide air cooler |
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| Publication Number | Publication Date |
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| CN210892781U true CN210892781U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921438501.2U Active CN210892781U (en) | 2019-08-30 | 2019-08-30 | Sulfur dioxide air cooler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082926A (en) * | 2021-04-27 | 2021-07-09 | 济南众焦先科环保科技有限公司 | Washing tower with dust removal function |
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2019
- 2019-08-30 CN CN201921438501.2U patent/CN210892781U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082926A (en) * | 2021-04-27 | 2021-07-09 | 济南众焦先科环保科技有限公司 | Washing tower with dust removal function |
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