CN206126872U - Useless sulphuric acid treatment system - Google Patents
Useless sulphuric acid treatment system Download PDFInfo
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- CN206126872U CN206126872U CN201621098900.5U CN201621098900U CN206126872U CN 206126872 U CN206126872 U CN 206126872U CN 201621098900 U CN201621098900 U CN 201621098900U CN 206126872 U CN206126872 U CN 206126872U
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Abstract
The utility model discloses an useless sulphuric acid treatment system, include: carbide slag slurry pond, useless sulphuric acid storage tank, reaction unit, waste gas absorbing device, carbide slag slurry pond and reaction unit intercommunication for to providing carbide slag slurry among the reaction unit, useless sulphuric acid storage tank and reaction unit intercommunication are arranged in providing sulfur waste acid to reaction unit, have met waste gas absorbing device behind the reaction unit, are arranged in absorbing reaction unit's waste gas, wherein, reaction unit includes: baffling groove and reaction, baffling groove and reaction communicate through first pipeline and second pipeline, during first pipeline is arranged in carrying the reaction with baffling groove solution, during the second pipeline is arranged in carrying the baffling groove with the solution of reaction. It is sour that the device utilizes the accessory substance carbide slag slurry in the PVC production to handle the sulfur waste, the effectual useless vitriolic innocent treatment of chlorine hydrogen treatment process that has solved has reduced useless vitriolic processing costs, has reduced chlor -alkali trade caustic soda, PVC production processes's cost simultaneously.
Description
Technical field
This utility model is related to technical field of chlor-alkali industry, is specifically related to a kind of Waste Sulfuric Acid processing system.
Background technology
In chlorine industry chlorine hydrogen treatment process, a large amount of sulfur wastes of chloride, concentration about 70% can be produced during dry chlorine gas
Acid, in traditional sulfur waste acid treatment process, generally returns 70% Waste Sulfuric Acid factory and re-starts absorption concentration, but the method exist with
Lower defect：(1) because chloride in the sulphuric acid, corrosion is caused to sulfuric acid absorption equipment；(2) factory's Waste Sulfuric Acid processing cost is returned expensive, about
For 300 yuan/ton, in terms of producing 300 tons of Waste Sulfuric Acid by a set of 300,000 tons of ionic exchange membrane caustic moons, annual spent acid processing cost is about
1080000 yuan, the recovery cost produces larger financial burden to enterprise.In addition, can be by the way of Waste Sulfuric Acid heating, by dilute sulfur
Out, because this kind of mode relevant device cost is more expensive, general enterprises are powerless to be undertaken moisture evaporation in acid.The ring of PVC productions simultaneously
Carbide slag slurries of the by-product containing 30% calcium hydroxide can be produced in section, the process to carbide slag slurries is also required to very big cost.
Utility model content
In order to solve problem above, this utility model provides technical scheme below：
A kind of Waste Sulfuric Acid processing system, including：Carbide slag stock tank, sulfur waste acid storage tank, reaction unit, exhaust gas absorption device；
The carbide slag stock tank is connected with reaction unit, for providing carbide slag slurries, the sulfur waste acid storage tank and institute in reaction unit
Reaction unit connection is stated, for providing Waste Sulfuric Acid in reaction unit, the reaction unit has been followed by the exhaust gas absorption device,
For the waste gas in absorption reaction device；
Wherein, the reaction unit includes：Baffling groove and reactive tank, the baffling groove and the reactive tank pass through first pipe
Road and the second pipeline connection, first pipeline is used to that solution in baffling groove to be transported in reactive tank, and second pipeline is used
In the solution in reactive tank is transported in baffling groove；
The sulfur waste acid storage tank is connected with the baffling groove, for providing Waste Sulfuric Acid in baffling groove, in baffling groove
Carbide slag slurries react.
The Waste Sulfuric Acid processing system also include multiple reaction units, multiple reaction units respectively with the carbide slag slurries
Pond, the sulfur waste acid storage tank, exhaust gas absorption device connection.
The exhaust gas absorption device include Tower for purifying waste gas, Tower for purifying waste gas bottom exhaust gas inlet respectively with baffling
Groove, reactive tank connection, for absorbing waste gas therein, the outlet of waste gas purification tower bottom absorbing liquid and absorbing liquid circulatory pool, self-priming
Tank, circulating pump, the absorbing liquid import of Tower for purifying waste gas top are sequentially connected, and tower top air outlet is connected with the blower fan.
The waste gas absorption tower is connected respectively by exhaust piping with the top of reactive tank, baffling groove.
The sulfur waste acid storage tank is connected with baffling groove by acid adding pipeline, and on the acid adding pipeline sour pump and flow are provided with
Meter, is respectively used to pump Waste Sulfuric Acid and the flow of Waste Sulfuric Acid is pumped in control.
First pipeline is respectively communicated with the lower part outlet of baffling groove and the upper inlet of reactive tank, second pipeline point
Not Lian Tong baffling groove upper inlet and the outlet at bottom of reactive tank.
The reaction unit also includes heat exchanger, and the heat exchanger is arranged on the second pipeline.
Pulp pump is provided with second pipeline, for the solution in reactive tank to be transported in baffling groove.
Product transfer pipeline is connected with second pipeline, when completing for reaction, by the reaction in reactive tank
Product is delivered to slag field, treats that next step is processed.
Beneficial effect：This utility model processes Waste Sulfuric Acid using the by-product carbide slag slurries in PVC productions, effectively solution
Determine the harmless treatment of chlorine hydrogen treatment process Waste Sulfuric Acid, the processing cost of Waste Sulfuric Acid has been reduced, while reducing chlor-alkali industry
The cost of Caustic soda, PVC production links.
Description of the drawings
The structural representation of Waste Sulfuric Acid processing system disclosed in the first embodiment that Fig. 1 is provided for this utility model；
The structural representation of Waste Sulfuric Acid processing system disclosed in the second embodiment that Fig. 2 is provided for this utility model.
Specific embodiment
This utility model is described further with reference to the accompanying drawings and examples, but this utility model be not limited to it is following
Embodiment.
With reference to Fig. 1, this utility model provides a kind of Waste Sulfuric Acid processing system, including：Carbide slag stock tank 01, Waste Sulfuric Acid is stored up
Tank 02, reaction unit, exhaust gas absorption device；The carbide slag stock tank 01 is connected with reaction unit, for carrying in reaction unit
For carbide slag slurries, the sulfur waste acid storage tank 02 is connected with the reaction unit, described for providing Waste Sulfuric Acid in reaction unit
Reaction unit has been followed by the exhaust gas absorption device, for the waste gas in absorption reaction device.
The reaction unit includes：Baffling groove 04 and reactive tank 05, the reactive tank 05 is used for carbide slag slurries, carbide slag slurries
Stirring, storage with Waste Sulfuric Acid product, the big I of reactive tank 05 is selected as needed, and the baffling groove 04 is used to make carbide
Slurry mixes evenly with Waste Sulfuric Acid, and is conducive to the diffusion of heat of reaction, and the baffling groove 04 and the reactive tank 05 pass through
First pipeline 06 is connected with the second pipeline 07, and first pipeline 06 is used to for the solution in baffling groove 04 to be transported to reactive tank 05
In, second pipeline 07 is used to that the solution in reactive tank 05 to be transported in baffling groove 04；Preferably, first pipeline 06
Be respectively communicated with the lower part outlet of baffling groove 04 and the upper inlet of reactive tank 05, the solution in baffling groove 04 can by gravity flow or
With being pumped in reactive tank 05, second pipeline 07 is respectively communicated with the upper inlet of baffling groove 04 and the bottom of reactive tank 05
Outlet, is provided with Pulp pump 10 on second pipeline 07, the solution in reactive tank 05 is transported to baffling groove 04 by Pulp pump 10
In.Product transfer pipeline 09 is connected with second pipeline 07, when completing for reaction, by the reaction in reactive tank 05
Product is delivered to slag field, treats that next step is processed.
Wherein, in the first exemplary embodiment as shown in Figure 1, the reaction unit may also include heat exchanger 08, institute
State heat exchanger 08 to be arranged on the second pipeline 07, for cooling the carbide slag being used for sulfur waste acid reaction is transported in baffling groove 04
Slurry.
The sulfur waste acid storage tank 02 is used for temporarily storage Waste Sulfuric Acid, and the Waste Sulfuric Acid produced in chlor-alkali operation is transported by sour car
To sulfur waste acid treatment scene, then spent acid is pumped in sulfur waste acid storage tank 02 by spent acid unloading pump 11, the sulfur waste acid storage tank
02 is connected with the baffling groove 04 by acid adding pipeline, and sour pump 12 and effusion meter 03 are provided with the acid adding pipeline, the sour pump
12 continuously can pump to the Waste Sulfuric Acid in sulfur waste acid storage tank 02 in baffling groove 04, with the carbide slag slurries in baffling groove 04
React, the controllable flow for pumping Waste Sulfuric Acid of the effusion meter 03, the carbide slag of the big I of flow in baffling groove 04
The factors such as the reaction heat of concentration, flow and carbide slag slurries and Waste Sulfuric Acid of slurry consider, it is preferable that the rate of discharge of sour pump 12≤
1.45m3/ h, the type of effusion meter is selected also dependent on being actually needed, in the present embodiment using spinner flowmeter.
The exhaust gas absorption device includes waste gas absorption tower 13, in the illustrative examples shown in the present invention, adopts and fills out
Material tower, the bottom exhaust gas inlet of the waste gas absorption tower 13 is connected respectively with baffling groove 04, reactive tank 05, therein useless for absorbing
Gas, such as hydrogen sulfide, chlorine, wherein, the waste gas absorption tower 13 can by exhaust piping 18 respectively with reactive tank 05, baffling groove 04
Top connection, be more conducive to the absorption of waste gas.The bottom absorbing liquid outlet of waste gas absorption tower 13 and absorbing liquid circulatory pool 14, self-priming
Tank 15, circulating pump 16, the top absorbing liquid import of waste gas absorption tower 13 are sequentially connected, and tower top air outlet is connected with the blower fan 17.
Waste gas in reactive tank 05, baffling groove 04 is entered after tower body, and from bottom to top through the packing layer in waste gas absorption tower 13, circulation is inhaled
Receive agent to be flowed from top to bottom by absorbing liquid import, because ascending air and decline absorbent are constantly contacted in filler, rise gas
The concentration of liquid is more and more lower in stream, emission request is reached during to tower top and extracts discharge out by blower fan 17, absorbs absorbent
Under gravity the outlet of Jing absorbing liquids flows into absorbing liquid circulatory pool 14 to liquid, and extracts recycling out by circulating pump 16, wherein,
The absorbent can be selected according to actual needs, for example, can be sodium hydroxide etc..
The Waste Sulfuric Acid processing system may also include multiple reaction units, multiple reaction units respectively with the carbide slag slurries
Pond 01, the sulfur waste acid storage tank 02, exhaust gas absorption device connection, the quantity of reaction unit can such as be needed according to practical situation
The amount of Waste Sulfuric Acid is processed, is selected, in the second exemplary embodiment shown in Fig. 2, multiple reaction units are two, are given up
Sulphuric acid is respectively delivered in two baffling grooves 04 by an acid adding pipeline, and exhaust gas absorption device passes through 18 points of an exhaust piping
Do not connect with baffling groove 04, reactive tank 05.
Carbide slag slurries, the conveying of Waste Sulfuric Acid in Waste Sulfuric Acid processing system can be carried out by pipeline, the diameter of pipeline according to
Practical situation is selected, and valve is equipped with solution delivery line, for controlling Waste Sulfuric Acid processing system between each device
Solution turnover.
The workflow of the Waste Sulfuric Acid processing system that this utility model is provided is as follows：
It is using carbide slag stock pump (not shown) that the carbide slag slurry in carbide slag stock tank 01 is disposable by pipeline
Throw in reactive tank 05 and baffling groove 04, start reactive tank stirring and Pulp pump 10, make carbide slag slurries in baffling groove 04, reactive tank
05 interior circulation, Waste Sulfuric Acid is continuously input into Waste Sulfuric Acid by sour pump 12 in baffling groove 04, and the sour rate of discharge of pump 12 of adjustment is constantly beaten
Uniformly to there is following neutralization in the Waste Sulfuric Acid for entering anti-by the distributor in baffling groove 04 with the carbide slag slurries of circulation in baffling groove 04
Should：
Ca(OH)2+H2SO4→CaSO4+2H2O；
And having solution constantly to enter in reactive tank 05, the stirring of reactive tank 05 continues to reaction, and constantly toward baffling groove 04
Middle conveying carbide slag slurries, while the waste gas in baffling groove 04, reactive tank 05 is entered by exhaust piping 18 into exhaust gas absorption device
Row is processed, and after reaction is fully completed, closes sour pump 12, the reaction product of reactive tank 05 is delivered to into slag field and is stacked.
Embodiment 1
Using the Waste Sulfuric Acid processing system in the second exemplary embodiment shown in Fig. 2, the sulfur waste of required process is acid
Matter is as shown in table 1：
Table 1
| Title | Temperature DEG C | Concentration % | Density g/l | Sample point |
| Dilute sulfuric acid | Room temperature | 79.65 | 1.717 | One phase acid pump row's mouth |
Carbide slag slurries property is as shown in table 2：
Table 2
| Title | Temperature DEG C | Mass ratio % | Density g/l | Sample point |
| Carbide slag slurries | 57 | 34.7 | 1237.3 | One phase carbide slag stock tank pump arranges mouth |
Reactive tank 05 is disposably thrown into by pipeline from the carbide slag slurry that the solid content of carbide slag stock tank 01 is 34.7%
(size of reactive tank 05 is about 50m with baffling groove 043), start reactive tank stirring and Pulp pump 10, carbide slag slurries are made in folding
Chute 04, the interior circulation of reactive tank 05；The Waste Sulfuric Acid of concentration about 80% is transported to sulfur waste acid treatment scene by sour car, by spent acid
Waste Sulfuric Acid is beaten standby to Waste Sulfuric Acid acid tank by unloading pump 11, starts sour pump 12, and after the normal operation of sour pump 12, slow opening is sent outside
Sour valve, and suitably turn return valve down, adjustment 12 rates of discharge of sour pump≤1.45m3/ h, Waste Sulfuric Acid is beaten to baffling groove 04, is led to
Cross distributor and be uniformly neutralized reaction with the carbide slag slurries of the interior circulation of baffling groove 04, now react violent, there are a large amount of steam to dissipate
Go out, while the waste gas in baffling groove 04, reactive tank 05 is processed by exhaust piping 18 into exhaust gas absorption device, wherein,
During waste gas absorption, the absorbent of waste gas selects sodium hydroxide.Reaction start after in time observation carbide slag slurries concentration change and
Stirring motor curent change situation adjusts in time acid adding flow on stirring operation post, treats that slurry concentration high fluidity is gradually deteriorated and leads
After causing stir current to raise or react existing 3 hours, sour pump 12 is closed, slurry in reactive tank 05 is delivered to into heap by Pulp pump 10
Stack field.
In the present embodiment, above-mentioned Waste Sulfuric Acid 2.5t has been processed, carbide slag slurries 4.35t has been consumed, 3.52m has been rolled over3。
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand device of the present utility model and its core concept；Simultaneously for the general technology of this area
Personnel, according to thought of the present utility model, will change in specific embodiments and applications, in sum,
This specification content should not be construed as to restriction of the present utility model.
Claims (9)
1. a kind of Waste Sulfuric Acid processing system, including：Carbide slag stock tank, sulfur waste acid storage tank, reaction unit, exhaust gas absorption device；Institute
State carbide slag stock tank to connect with reaction unit, for providing carbide slag slurries in reaction unit, the sulfur waste acid storage tank with it is described
Reaction unit is connected, and for providing Waste Sulfuric Acid in reaction unit, the reaction unit has been followed by the exhaust gas absorption device, is used
Waste gas in absorption reaction device；
Wherein, the reaction unit includes：Baffling groove and reactive tank, the baffling groove and the reactive tank by the first pipeline and
Second pipeline connection, first pipeline is used to that solution in baffling groove to be transported in reactive tank, and second pipeline is used for will
Solution in reactive tank is transported in baffling groove；
The sulfur waste acid storage tank is connected with the baffling groove, for providing Waste Sulfuric Acid in baffling groove, with the carbide in baffling groove
Slurry reacts.
2. Waste Sulfuric Acid processing system as claimed in claim 1, wherein, the Waste Sulfuric Acid processing system also includes multiple reaction dresses
Put, multiple reaction units are connected respectively with the carbide slag stock tank, the sulfur waste acid storage tank, the exhaust gas absorption device.
3. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, the exhaust gas absorption device includes Tower for purifying waste gas,
Tower for purifying waste gas bottom exhaust gas inlet is connected respectively with baffling groove, reactive tank, for absorbing waste gas therein, waste gas purification
The outlet of tower bottom absorbing liquid connects successively with absorbing liquid circulatory pool, self-sucking pot, circulating pump, the absorbing liquid import of Tower for purifying waste gas top
Connect, tower top air outlet is connected with the blower fan.
4. Waste Sulfuric Acid processing system as claimed in claim 3, wherein, the waste gas absorption tower by exhaust piping respectively with instead
Answer the top connection of groove, baffling groove.
5. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, the sulfur waste acid storage tank passes through acid adding with baffling groove
Pipeline connects, and on the acid adding pipeline sour pump and effusion meter are provided with, and is respectively used to pump Waste Sulfuric Acid and Waste Sulfuric Acid is pumped in control
Flow.
6. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, first pipeline is respectively communicated with baffling groove
Portion's outlet and the upper inlet of reactive tank, the bottom of upper inlet and reactive tank that second pipeline is respectively communicated with baffling groove goes out
Mouthful.
7. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, the reaction unit also includes heat exchanger, described to change
Hot device is arranged on the second pipeline.
8. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, Pulp pump is provided with second pipeline, it is used for
Solution in reactive tank is transported in baffling groove.
9. Waste Sulfuric Acid processing system as claimed in claim 1 or 2, wherein, it is connected with product on second pipeline defeated
Pipeline is sent, when completing for reaction, the product in reactive tank slag field is delivered to into, treats that next step is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098900.5U CN206126872U (en) | 2016-09-29 | 2016-09-29 | Useless sulphuric acid treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621098900.5U CN206126872U (en) | 2016-09-29 | 2016-09-29 | Useless sulphuric acid treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206126872U true CN206126872U (en) | 2017-04-26 |
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ID=58571764
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621098900.5U Active CN206126872U (en) | 2016-09-29 | 2016-09-29 | Useless sulphuric acid treatment system |
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| Country | Link |
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| CN (1) | CN206126872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879369A (en) * | 2016-09-29 | 2018-04-06 | 内蒙古乌海化工有限公司 | A kind of Waste Sulfuric Acid processing system and method |
| CN109336159A (en) * | 2018-11-09 | 2019-02-15 | 陕西黑猫焦化股份有限公司 | Acetylene-formaldehyde process produces waste acid treatment technique caused by 1,4- butanediol |
-
2016
- 2016-09-29 CN CN201621098900.5U patent/CN206126872U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879369A (en) * | 2016-09-29 | 2018-04-06 | 内蒙古乌海化工有限公司 | A kind of Waste Sulfuric Acid processing system and method |
| CN109336159A (en) * | 2018-11-09 | 2019-02-15 | 陕西黑猫焦化股份有限公司 | Acetylene-formaldehyde process produces waste acid treatment technique caused by 1,4- butanediol |
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