CN216537799U - Alkali liquor and diluted urea preparation and supply system - Google Patents
Alkali liquor and diluted urea preparation and supply system Download PDFInfo
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- CN216537799U CN216537799U CN202122197841.4U CN202122197841U CN216537799U CN 216537799 U CN216537799 U CN 216537799U CN 202122197841 U CN202122197841 U CN 202122197841U CN 216537799 U CN216537799 U CN 216537799U
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Abstract
The utility model discloses an alkali liquor and diluted urea preparation and supply system, which comprises an alkali liquor preparation tank and a urea preparation tank, wherein the upper ends of the alkali liquor preparation tank and the urea preparation tank are water inlet ends and are respectively connected with the output end of a self-synthesis water pump; the output end of the alkali liquor preparation tank is connected with the input end of the alkali liquor storage tank, and the output ends of the alkali liquor storage tank are respectively connected with the input ends of the wet adsorption circulating pump and the wet washing circulating pump; the output end of the urea preparation tank is connected with the input end of the SNCR diluted urea storage tank, and the output end of the SNCR diluted urea storage tank is connected with the SNCR spray gun; the system is characterized by further comprising a self-splitting cylinder, wherein the input end of the self-splitting cylinder is used for being connected with external boiler equipment, and the output end of the self-splitting cylinder is respectively connected with the input ports of the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank. The utility model has the advantages of more reasonable design, better utilization of boiler steam to achieve the aim of energy saving, and better treatment of emissions to better avoid environmental pollution.
Description
Technical Field
The utility model relates to the technical field of preparation and supply of alkali liquor and diluted urea, in particular to a preparation and supply system of alkali liquor and diluted urea.
Background
Liquid caustic and SNCR dilute urea are liquids that are often needed in industrial processes. Among them, liquid caustic soda is liquid sodium hydroxide, which is also called caustic soda or caustic soda. The concentration of liquid caustic soda is usually 30-32% or 40-42% due to different production processes in the existing chlor-alkali plants. Usually, the liquid caustic soda is conveyed to the outside by a wet adsorption circulating pump and a wet washing circulating pump for utilization. The SNCR diluted urea is for delivery to the SNCR spray gun for use.
In the existing liquid caustic soda and SNCR diluted urea preparation and supply system, the liquid caustic soda and the SNCR diluted urea are usually prepared separately, so that the equipment investment is larger. And need heating when preparing, current system is extra setting up heating structure usually and heats, can not be fine utilize the steam that boiler equipment produced, leads to the waste of steam heat energy. Secondly, in the process of preparing the liquid caustic soda and the SNCR diluted urea, the generated oxides cannot be effectively treated, so that the environmental pollution is serious.
Therefore, those skilled in the art have been devoted to develop a supply system for preparing lye and dilute urea which is more reasonable in design, better able to utilize boiler steam for energy saving purposes, and better able to treat emissions to better avoid environmental pollution.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, the present invention is to provide a system for preparing and supplying lye and dilute urea, which is more reasonable in design, can better utilize boiler steam for energy saving, and can better treat emissions to avoid environmental pollution.
In order to achieve the purpose, the utility model provides an alkali liquor and diluted urea preparation and supply system, which comprises an alkali liquor preparation tank and a urea preparation tank, wherein the upper ends of the alkali liquor preparation tank and the urea preparation tank are water inlet ends and are respectively connected with the output end of a self-synthesis water pump; the output end of the alkali liquor preparation tank is connected with the input end of the alkali liquor storage tank, and the output ends of the alkali liquor storage tank are respectively connected with the input ends of the wet adsorption circulating pump and the wet washing circulating pump; the output end of the urea preparation tank is connected with the input end of the SNCR diluted urea storage tank, and the output end of the SNCR diluted urea storage tank is connected with the SNCR spray gun; the system is characterized by also comprising a self-splitting cylinder, wherein the input end of the self-splitting cylinder is used for being connected with external boiler equipment, the output end of the self-splitting cylinder is respectively connected with the input ports of the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank, and the output port of the heat tracing device in the urea preparation tank is connected with the input port of the heat tracing device in the SNCR dilute urea storage tank; and the output ports of the heat tracing devices in the alkali liquor preparation tank and the SNCR diluted urea storage tank are respectively connected with the input end of the deaerator.
Thus, the self-integrated water pump supplies water to the alkali liquor preparation tank and the urea preparation tank, the alkali liquor preparation and the urea preparation are respectively completed in the alkali liquor preparation tank and the urea preparation tank, then the alkali liquor and the urea are respectively and correspondingly conveyed to the liquid alkali storage tank and the SNCR dilute urea storage tank, and the liquid alkali storage tank is connected with the input ends of the wet adsorption circulating pump and the wet washing circulating pump and supplies the liquid alkali; an SNCR lean urea storage tank is connected to the SNCR spray gun and supplies SNCR lean urea. In the system, the self-separating cylinder is arranged, steam generated by external boiler equipment is utilized and conveyed to the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank for utilization, and the purpose of reducing energy consumption can be achieved. The output port of the heat tracing device in the urea preparation tank is connected with the input port of the heat tracing device in the SNCR dilute urea storage tank, so that steam can be utilized by the SNCR dilute urea storage tank. And secondly, the output ports of the heat tracing devices in the alkali liquor preparation tank and the SNCR dilute urea storage tank are respectively connected with the input end of a deaerator, so that produced sample substances can be treated, and pollution is reduced. In addition, the liquid caustic soda preparation and the SNCR diluted urea preparation are linked together, so that the aim of reducing the equipment cost can be fulfilled.
As optimization, a front-end flange ball valve, a pipeline Y-shaped filter, an alkali liquor delivery pump, a flange check valve and a rear-end flange ball valve are sequentially arranged between the output end of the liquid alkali storage tank and the wet adsorption circulating pump and the wet washing circulating pump; and a bypass pipeline is connected between the input end of the front flange ball valve and the output end of the rear flange ball valve, and a flange ball valve, a pipeline Y-shaped filter, an alkali liquor delivery pump, a flange check valve and a flange ball valve are sequentially arranged on the bypass pipeline.
Therefore, two passages are formed between the output end of the liquid caustic soda storage tank and the wet adsorption circulating pump and between the output end of the liquid caustic soda storage tank and the wet washing circulating pump, adjustment and control can be performed as required, and the working reliability is also improved.
As optimization, a centralized liquid level meter is arranged on the liquid alkali storage tank, and the signal output ends of the centralized liquid level meter are respectively connected with the electric control ends of the two alkali liquid conveying pumps.
Like this, can detect the liquid level in the liquid caustic soda storage tank and feed back liquid level information to the alkali liquor delivery pump through concentrating the level gauge, control opening of alkali liquor delivery pump stops.
As optimization, the system also comprises a standby liquid caustic soda storage tank, wherein the input end of the standby liquid caustic soda storage tank is used for being connected with the output end of the tank car; and the front end and the rear end of the bypass pipeline are respectively connected with a circulating pipeline, and the far ends of the two circulating pipelines are respectively connected with the input end and the output end of the standby liquid caustic soda storage tank.
By providing the spare caustic soda liquid storage tank in this way, caustic soda liquid can be stored and supplied as needed.
Preferably, the two circulation pipelines are respectively provided with a flange ball valve.
Therefore, the flange ball valves on the two circulating pipelines can be controlled to realize the on-off of the standby liquid caustic soda storage tank and the liquid caustic soda storage tank.
As optimization, electric stirrers are respectively arranged in the alkali liquor preparation tank, the urea preparation tank and the SNCR diluted urea storage tank.
Thus, the electric stirrers are respectively arranged in the alkali liquor preparation tank, the urea preparation tank and the SNCR diluted urea storage tank, so that the insides of the electric stirrers can be stirred, and the preparation efficiency is improved.
As optimization, a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and an output port of the heat tracing device in the SNCR dilute urea storage tank.
Therefore, the on-off between the deaerator and the output port of the heat tracing device in the SNCR dilute urea storage tank can be conveniently controlled.
As optimization, a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and the output port of the heat tracing device in the alkali liquor preparation tank.
Therefore, the on-off between the deaerator and the output port of the heat tracing device in the alkali liquor preparation tank can be conveniently controlled.
Preferably, the number of the self-synthesis water pumps is two, and the output ends of the two self-synthesis water pumps are respectively connected with the water inlet ends of the alkali liquor preparation tank and the urea preparation tank.
Therefore, the self-comprehensive water pump is arranged by respectively corresponding to the alkali liquor preparation tank and the urea preparation tank, so that the water supply efficiency can be improved, and the work is more reliable.
As optimization, a flake caustic soda lifting gourd and a urea lifting gourd are respectively arranged above the lye preparation tank and the urea preparation tank.
Like this, set up the piece alkali and promote the calabash and urea promotion calabash, can make things convenient for the alkali lye to prepare the delivery and get of jar and the inside material of urea configuration jar and put.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a position a in fig. 1.
Fig. 3 is a partially enlarged schematic view of a B position in fig. 1.
Fig. 4 is a partially enlarged schematic view of the position C in fig. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like are used in the description of the utility model to indicate orientations and positional relationships based on those shown in the drawings, and are used for convenience in describing the utility model and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the utility model. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 4, an alkali liquor and diluted urea preparation and supply system comprises an alkali liquor preparation tank 1 and a urea preparation tank 2, wherein the upper ends of the alkali liquor preparation tank and the urea preparation tank are water inlet ends and are respectively connected with the output end of a self-synthesis water pump 3; the output end of the alkali liquor preparation tank is connected with the input end of an alkali liquor storage tank 4, and the output ends of the alkali liquor storage tank are respectively connected with the input ends of a wet adsorption circulating pump 5 and a wet washing circulating pump 6; the output end of the urea preparation tank is connected with the input end of an SNCR dilute urea storage tank 7, and the output end of the SNCR dilute urea storage tank is connected with an SNCR spray gun 8; the system also comprises a self-splitting cylinder 9, wherein the input end of the self-splitting cylinder is used for being connected with external boiler equipment, the output end of the self-splitting cylinder is respectively connected with the input ports of the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank, and the output port of the heat tracing device in the urea preparation tank is connected with the input port of the heat tracing device in the SNCR dilute urea storage tank; and the output ports of the heat tracing devices in the alkali liquor preparation tank and the SNCR diluted urea storage tank are respectively connected with the input end of the deaerator 10.
Thus, the self-integrated water pump supplies water to the alkali liquor preparation tank and the urea preparation tank, the alkali liquor preparation and the urea preparation are respectively completed in the alkali liquor preparation tank and the urea preparation tank, then the alkali liquor and the urea are respectively and correspondingly conveyed to the liquid alkali storage tank and the SNCR dilute urea storage tank, and the liquid alkali storage tank is connected with the input ends of the wet adsorption circulating pump and the wet washing circulating pump and supplies the liquid alkali; an SNCR lean urea storage tank is connected to the SNCR spray gun and supplies SNCR lean urea. In the system, the self-separating cylinder is arranged, steam generated by external boiler equipment is utilized and conveyed to the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank for utilization, and the purpose of reducing energy consumption can be achieved. The output port of the heat tracing device in the urea preparation tank is connected with the input port of the heat tracing device in the SNCR dilute urea storage tank, so that steam can be utilized by the SNCR dilute urea storage tank. And secondly, the output ports of the heat tracing devices in the alkali liquor preparation tank and the SNCR dilute urea storage tank are respectively connected with the input end of a deaerator, so that produced sample substances can be treated, and pollution is reduced. In addition, the liquid caustic soda preparation and the SNCR diluted urea preparation are linked together, so that the aim of reducing the equipment cost can be fulfilled.
In the specific embodiment, a front-end flange ball valve 11, a pipeline Y-shaped filter 12, an alkali liquor delivery pump 13, a flange check valve 14 and a rear-end flange ball valve 15 are sequentially arranged between the output end of the liquid alkali storage tank and the wet adsorption circulating pump and the wet washing circulating pump; and a bypass pipeline 16 is connected between the input end of the front flange ball valve and the output end of the rear flange ball valve, and a flange ball valve, a pipeline Y-shaped filter, an alkali liquor delivery pump, a flange check valve and a flange ball valve are sequentially arranged on the bypass pipeline.
Therefore, two passages are formed between the output end of the liquid caustic soda storage tank and the wet adsorption circulating pump and between the output end of the liquid caustic soda storage tank and the wet washing circulating pump, adjustment and control can be performed as required, and the working reliability is also improved.
In the embodiment, a concentrated liquid level meter 17 is arranged on the liquid alkali storage tank, and the signal output ends of the concentrated liquid level meters are respectively connected with the electric control ends of the two alkali liquid conveying pumps.
Like this, can detect the liquid level in the liquid caustic soda storage tank and feed back liquid level information to the alkali liquor delivery pump through concentrating the level gauge, control opening of alkali liquor delivery pump stops.
In the specific embodiment, the system further comprises a standby liquid caustic soda storage tank 18, wherein the input end of the standby liquid caustic soda storage tank is used for being connected with the output end of the tank car 19; the front end and the rear end of the bypass pipeline are respectively connected with a circulating pipeline 20, and the far ends of the two circulating pipelines are respectively connected with the input end and the output end of the standby liquid caustic soda storage tank.
By providing the spare caustic soda liquid storage tank in this way, caustic soda liquid can be stored and supplied as needed.
In this embodiment, flange ball valves are provided on the two circulation pipes, respectively.
Therefore, the flange ball valves on the two circulating pipelines can be controlled to realize the on-off of the standby liquid caustic soda storage tank and the liquid caustic soda storage tank.
In the present embodiment, electric stirrers 21 are provided in the lye preparation tank, the urea preparation tank and the SNCR diluted urea storage tank, respectively.
Thus, the electric stirrers are respectively arranged in the alkali liquor preparation tank, the urea preparation tank and the SNCR diluted urea storage tank, so that the insides of the electric stirrers can be stirred, and the preparation efficiency is improved.
In the specific embodiment, a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and an output port of the heat tracing device in the SNCR dilute urea storage tank.
Therefore, the on-off between the deaerator and the output port of the heat tracing device in the SNCR dilute urea storage tank can be conveniently controlled.
In the specific embodiment, a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and the output port of the heat tracing device in the alkali liquor preparation tank.
Therefore, the on-off between the deaerator and the output port of the heat tracing device in the alkali liquor preparation tank can be conveniently controlled.
In this embodiment, there are two self-integrated water pumps 3, and the output ends of the two self-integrated water pumps are respectively connected to the water inlet ends of the alkali liquor preparation tank and the urea preparation tank.
Therefore, the self-comprehensive water pumps are arranged corresponding to the alkali liquor preparation tank and the urea preparation tank respectively, so that the water supply efficiency can be improved, and the work is more reliable.
In the present embodiment, a flake caustic soda lifting hoist 22 and a urea lifting hoist 23 are respectively arranged above the lye preparation tank and the urea preparation tank.
Like this, set up the piece alkali and promote the calabash and urea promotion calabash, can make things convenient for the alkali lye to prepare the delivery and get of jar and the inside material of urea configuration jar and put.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An alkali liquor and diluted urea preparation and supply system comprises an alkali liquor preparation tank and a urea preparation tank, wherein the upper ends of the alkali liquor preparation tank and the urea preparation tank are water inlet ends and are respectively connected with the output end of a self-synthesis water pump; the output end of the alkali liquor preparation tank is connected with the input end of the alkali liquor storage tank, and the output ends of the alkali liquor storage tank are respectively connected with the input ends of the wet adsorption circulating pump and the wet washing circulating pump; the output end of the urea preparation tank is connected with the input end of the SNCR diluted urea storage tank, and the output end of the SNCR diluted urea storage tank is connected with the SNCR spray gun; the system is characterized by also comprising a self-splitting cylinder, wherein the input end of the self-splitting cylinder is used for being connected with external boiler equipment, the output end of the self-splitting cylinder is respectively connected with the input ports of the heat tracing devices in the alkali liquor preparation tank and the urea preparation tank, and the output port of the heat tracing device in the urea preparation tank is connected with the input port of the heat tracing device in the SNCR dilute urea storage tank; and the output ports of the heat tracing devices in the alkali liquor preparation tank and the SNCR diluted urea storage tank are respectively connected with the input end of the deaerator.
2. The system of claim 1, further comprising: a front flange ball valve, a pipeline Y-shaped filter, an alkali liquor delivery pump, a flange check valve and a rear flange ball valve are sequentially arranged between the output end of the liquid alkali storage tank and the wet adsorption circulating pump and the wet washing circulating pump; and a bypass pipeline is connected between the input end of the front flange ball valve and the output end of the rear flange ball valve, and a flange ball valve, a pipeline Y-shaped filter, an alkali liquor delivery pump, a flange check valve and a flange ball valve are sequentially arranged on the bypass pipeline.
3. The system of claim 2, further comprising: a centralized liquid level meter is arranged on the liquid alkali storage tank, and the signal output ends of the centralized liquid level meter are respectively connected with the electric control ends of the two alkali liquid conveying pumps.
4. The system of claim 2, further comprising: the input end of the standby liquid caustic soda storage tank is used for being connected with the output end of the tank car; and the front end and the rear end of the bypass pipeline are respectively connected with a circulating pipeline, and the far ends of the two circulating pipelines are respectively connected with the input end and the output end of the standby liquid caustic soda storage tank.
5. The system of claim 4, further comprising: and flange ball valves are respectively arranged on the two circulating pipelines.
6. The system of claim 1, further comprising: electric stirrers are respectively arranged in the alkali liquor preparation tank, the urea preparation tank and the SNCR diluted urea storage tank.
7. The system of claim 1, further comprising: and a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and an output port of the heat tracing device in the SNCR dilute urea storage tank.
8. The system of claim 1, further comprising: a flange gate valve, a flange check valve, a drain valve and a flange gate valve are sequentially arranged between the deaerator and the output port of the heat tracing device in the alkali liquor preparation tank.
9. The system of claim 1, further comprising: the number of the self-synthesis water pumps is two, and the output ends of the two self-synthesis water pumps are respectively connected with the water inlet ends of the alkali liquor preparation tank and the urea preparation tank.
10. The system of claim 1, further comprising: the upper parts of the alkali liquor preparation tank and the urea preparation tank are respectively provided with a flake alkali lifting gourd and a urea lifting gourd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197841.4U CN216537799U (en) | 2021-09-11 | 2021-09-11 | Alkali liquor and diluted urea preparation and supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197841.4U CN216537799U (en) | 2021-09-11 | 2021-09-11 | Alkali liquor and diluted urea preparation and supply system |
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| Publication Number | Publication Date |
|---|---|
| CN216537799U true CN216537799U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122197841.4U Active CN216537799U (en) | 2021-09-11 | 2021-09-11 | Alkali liquor and diluted urea preparation and supply system |
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| CN (1) | CN216537799U (en) |
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2021
- 2021-09-11 CN CN202122197841.4U patent/CN216537799U/en active Active
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