CN216458026U - Msw incineration lime mud feed system - Google Patents
Msw incineration lime mud feed system Download PDFInfo
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- CN216458026U CN216458026U CN202123209832.9U CN202123209832U CN216458026U CN 216458026 U CN216458026 U CN 216458026U CN 202123209832 U CN202123209832 U CN 202123209832U CN 216458026 U CN216458026 U CN 216458026U
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Abstract
The utility model discloses a waste incineration lime slurry supply system, which comprises a lime slurry supply component, wherein the lime slurry supply component comprises a lime slurry supply tank, and the lime slurry supply tank is communicated with a variable-frequency delivery pump through a supply pipeline; the variable-frequency conveying pump is communicated with a plurality of rotary atomizers through supply pipelines, and a return pipeline is communicated between the rotary atomizers and the lime slurry supply tank; the regulating component comprises a plurality of electric ball valves, and the electric ball valves are arranged on the supply pipeline; the device also comprises a measuring assembly, wherein the measuring assembly comprises a plurality of pressure transmitters and a plurality of electromagnetic flowmeters, and the pressure transmitters and the electromagnetic flowmeters are arranged on the supply pipeline; the variable-frequency delivery pump and the electric ball valve are respectively electrically connected with the controller. The device uses one lime slurry supply tank to simultaneously provide lime slurry for a plurality of rotary atomizers, so that the equipment cost is saved, and simultaneously, the flow and the pressure of the lime slurry flowing into each rotary atomizer can be controlled.
Description
Technical Field
The utility model relates to a gas cleaning technical field especially relates to a msw incineration lime thick liquid feed system.
Background
Waste incineration has become the primary mode of municipal waste disposal. In the process of purifying the flue gas generated by burning the garbage, the lime slurry is the main raw material for removing the acid gas in the flue gas. Slaking quicklime (slaked lime) powder to prepare lime slurry solution with a certain concentration, conveying the prepared lime slurry to a rotary atomizer at the top of a deacidification tower through a lime slurry supply system, and carrying out rotary atomization on the lime slurry into fine liquid drops through the rotary atomizer, wherein the fine liquid drops are uniformly mixed and reacted with acidic substances in flue gas, SO that the acidic substances such as HCl, SO2 and the like in the flue gas are removed.
In order to ensure that the rotary atomizer normally operates at the optimal rotating speed, the pressure of the lime slurry entering the rotary atomizer generally needs to be between 180 and 200 kPa; meanwhile, the flow of the lime slurry entering the rotary atomizer needs to be determined according to the content of acidic substances in the flue gas and the concentration of the lime slurry. The over-low lime slurry flow can cause insufficient flue gas removal, so that the flue gas emission does not reach the standard; the lime slurry flow is too large, so that resource waste can be caused, the content of dust can be increased, and the difficulty and investment in dust treatment can be increased.
A garbage incineration plant often has a plurality of groups of incinerators which operate simultaneously, so that a plurality of rotary atomizers work simultaneously, and if each rotary atomizer is provided with one lime slurry supply system, the equipment cost and the management difficulty are greatly improved; and a set of lime slurry supply system is adopted to simultaneously supply lime slurry for a plurality of rotary atomizers, the distance between each rotary atomizer and the lime slurry supply tank is different, and the flow rate and the pressure of the lime slurry entering each rotary atomizer are also different.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a msw incineration lime thick liquid feed system to solve the problem that above-mentioned prior art exists, reduce equipment cost and the management degree of difficulty make the flow and the pressure that get into every rotary atomizer lime thick liquid the same simultaneously.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a msw incineration lime thick liquid feed system, include:
the lime slurry feeding assembly comprises a lime slurry feeding tank and a variable-frequency conveying pump, and the lime slurry feeding tank is communicated with the variable-frequency conveying pump through a feeding pipeline;
the rotary atomizers are arranged in parallel, the rotary atomizers are communicated with the variable-frequency conveying pump supply tank through the supply pipeline, and a return pipeline is communicated between the rotary atomizers and the lime slurry supply tank;
the adjusting assembly comprises a plurality of electric ball valves, and the electric ball valves are arranged on the supply pipeline;
the measuring assembly comprises a plurality of pressure transmitters and a plurality of electromagnetic flow meters, and the pressure transmitters and the electromagnetic flow meters are arranged on the supply pipeline between the variable-frequency delivery pump and the rotary atomizer;
and the variable-frequency delivery pump and the electric ball valve are respectively and electrically connected with the controller.
Preferably, a plurality of parallelly connected setting between the pressure transmitter, a plurality of parallelly connected setting between the electromagnetic flowmeter, pressure transmitter with the quantity of electromagnetic flowmeter corresponds the setting with the quantity of rotary atomizer respectively.
Preferably, install between pressure transmitter and the electromagnetic flowmeter electric ball valve, electric ball valve with install electrical control valve between the electromagnetic flowmeter.
Preferably, the supply pipelines at two ends of the variable-frequency delivery pump are respectively provided with the electric ball valve and the stop valve.
Preferably, the shut-off valve is located on the feed line close to the lime slurry feed tank.
Preferably, a plurality of the electric ball valves on the return pipeline are arranged in parallel.
Preferably, the electric control valve, the pressure transmitter and the electromagnetic flowmeter are respectively electrically connected with the controller.
Preferably, the lime slurry supply tank is communicated with a lime slurry supply pipe.
The utility model discloses a following technological effect: this device is provided with lime slurry and supplies with the jar, be used for saving lime slurry, lime slurry passes through the frequency conversion delivery pump and carries a plurality of rotary atomization wares through the supply pipe way, parallelly connected setting between a plurality of rotary atomization wares, electric ball valve is used for adjusting every lime slurry flow and the pressure that flows in rotary atomization ware, pressure transmitter is used for measuring the pressure with lime slurry in the supply pipe way of rotary atomization ware intercommunication, electromagnetic flowmeter is used for measuring the lime slurry flow that flows in rotary atomization ware, the controller is through control frequency conversion delivery pump and electric ball valve, can carry out accurate control to lime slurry flow and the pressure that flows in rotary atomization ware, thereby make the lime slurry that flows in among a plurality of parallel arrangement's rotary atomization ware can both guarantee to have the same pressure and flow.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of a system for supplying lime slurry for refuse incineration according to the present invention;
wherein, 1, lime slurry is supplied to the tank; 2. a variable frequency delivery pump; 3. a supply line; 4. rotating the atomizer; 5. a return line; 6. an electric ball valve; 7. a pressure transmitter; 8. an electromagnetic flow meter; 9. an electric control valve; 10. a stop valve; 11. a lime slurry feed pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, the utility model provides a msw incineration lime thick liquid feed system, include:
the lime slurry feeding assembly comprises a lime slurry feeding tank 1 and a variable-frequency conveying pump 2, and the lime slurry feeding tank 1 is communicated with the variable-frequency conveying pump 2 through a feeding pipeline 3; lime slurry is stored in the lime slurry supply tank, and the variable-frequency conveying pump 2 is used for conveying the lime slurry outwards.
The system comprises a plurality of rotary atomizers 4, wherein the rotary atomizers 4 are arranged in parallel, the rotary atomizers 4 are communicated with a variable-frequency delivery pump 2 through a supply pipeline 3, and a return pipeline 5 is communicated between the rotary atomizers 4 and a lime slurry supply tank 1; the rotary atomizer 4 atomizes lime slurry into fine liquid drops in a rotary mode, the fine liquid drops are uniformly mixed and reacted with acidic materials in flue gas, SO that acidic materials such as HCl and SO2 in the flue gas are removed, the plurality of rotary atomizers 4 are arranged in parallel, one lime slurry supply tank 1 can be used for supplying the lime slurry, a plurality of lime slurry supply tanks 1 are prevented from being installed, the cost of equipment is reduced, and the lime slurry and the acidic materials are refluxed into the lime slurry supply tank 1 through the reflux pipeline 5 after reaction.
The adjusting assembly comprises a plurality of electric ball valves 6, and the electric ball valves 6 are arranged on the supply pipeline 3; an electric ball valve 6 is used to regulate the flow and pressure of each lime slurry flowing into the rotary atomizer 4.
The measuring component comprises a plurality of pressure transmitters 7 and a plurality of electromagnetic flow meters 8, wherein the pressure transmitters 7 and the electromagnetic flow meters 8 are arranged on the supply pipeline 3 between the variable-frequency delivery pump 2 and the rotary atomizer 4; the pressure transmitter 7 is used for measuring the pressure of the lime slurry in the feed line 3 communicating with the rotary atomizer 4, and the electromagnetic flow meter 8 is used for measuring the flow of the lime slurry flowing into the rotary atomizer 4.
The controller, the variable-frequency delivery pump 2 and the electric ball valve 6 are respectively electrically connected with the controller; the controller can accurately control the lime slurry flow and the pressure flowing into the rotary atomizer 4 by controlling the variable-frequency delivery pump 2 and the electric ball valve 6, and in the embodiment, the controller selects a single-chip microcomputer controller which is not repeated for the prior art.
According to the further optimization scheme, a plurality of pressure transmitters 7 are arranged in parallel, a plurality of electromagnetic flow meters 8 are arranged in parallel, and the number of the pressure transmitters 7 and the number of the electromagnetic flow meters 8 are respectively arranged corresponding to the number of the rotary atomizers 4; the pressure transmitter 7 and the electromagnetic flow meter 8 can measure the flow and pressure of the lime slurry flowing into the rotary atomizer 4 per feed line 3 individually.
According to the further optimization scheme, an electric ball valve 6 is arranged between a pressure transmitter 7 and an electromagnetic flowmeter 8, and an electric regulating valve 9 is arranged between the electric ball valve 6 and the electromagnetic flowmeter 8; an electric ball valve 6 and an electric regulating valve 9 precisely regulate the pressure and flow of the lime slurry flowing in the feed line 3 into each rotary atomizer 4.
According to the further optimized scheme, the supply pipelines 3 at two ends of the variable-frequency delivery pump 2 are respectively provided with an electric ball valve 6 and a stop valve 10; for controlling the total lime mud feed from the lime mud feed tank 1.
In a further optimized scheme, the stop valve 10 is positioned on the feed pipeline 3 close to the lime slurry feed tank 1; the shut-off valve 10 can completely shut off the supply of lime slurry in the main feed line 3, facilitating maintenance of the variable-frequency feed pump 2.
According to the further optimization scheme, a plurality of electric ball valves 6 on the return pipeline 5 are arranged in parallel; the electric ball valves 6 are arranged in parallel to control the flow of the lime slurry flowing out of each rotary atomizer 4.
In a further optimized scheme, the electric regulating valve 9, the pressure transmitter 7 and the electromagnetic flowmeter 8 are respectively electrically connected with the controller; the pressure and the flow of the lime slurry in the feeding pipeline 3 of the rotary atomizer 4 can be remotely acquired and remotely adjusted, so that the pressure and the flow of the lime slurry in the feeding pipeline 3 of the rotary atomizer 4 can be accurately controlled.
In a further optimized scheme, the lime slurry supply tank 1 is communicated with a lime slurry supply pipe 11, the lime slurry supply pipe 11 is connected with a lime slurry preparation system (not shown in the figure) to provide lime slurry with a determined concentration for the lime slurry supply tank 1, in the embodiment, a stirrer (not shown in the figure) is arranged in the lime slurry supply tank 1 to fully stir the lime slurry; a liquid level meter (not shown in the figure) is arranged in the lime slurry supply tank 1, the liquid level height of the lime slurry in the lime slurry supply tank 1 is monitored in real time, and the liquid level height is fed back to the lime slurry preparation system; when the liquid level of the lime slurry is too high, stopping the lime slurry preparation system from supplying the lime slurry to the lime slurry supply tank 1; when the lime slurry liquid level is too low, the lime slurry preparation system is accelerated to feed lime slurry to the lime slurry feed tank 1.
In the operation process of the device, a lime slurry preparation system provides lime slurry with determined concentration to a lime slurry supply tank 1 through a lime slurry supply pipe 11, the lime slurry flows to a plurality of rotary atomizers 4 through a variable-frequency delivery pump 2, the rotary atomizers 4 are arranged in parallel, a pressure transmitter 7 and an electromagnetic flowmeter 8 are installed on a pipeline connecting each rotary atomizer 4 and used for measuring the pressure and flow of the lime slurry flowing into the rotary atomizers 4, an electric ball valve 6 and an electric regulating valve 9 are used for regulating the pressure and flow of the lime slurry flowing into the rotary atomizers 4, electric ball valves 6 and stop valves 10 at two ends of the variable-frequency delivery pump 2 are used for regulating the pressure and flow of the lime slurry flowing into all the rotary atomizers 4, the lime slurry flows back to the lime slurry supply tank 1 through a return pipeline 5 after reaction in the rotary atomizers 4, and the pressure transmitter 7 and the electromagnetic flowmeter 8 feed the pressure and flow of the lime slurry in a supply pipeline 3 back to a flow controller, the controller controls the electric ball valve 6, the electric regulating valve 9 and the variable-frequency delivery pump 2 of the whole device, and accurately controls the pressure and the flow of the lime slurry supply in the feed pipeline 3 of each rotary atomizer 4.
The waste incineration lime slurry supply system can simultaneously provide lime slurry for the rotary atomizers 4, so that the investment of lime slurry supply components is saved; the pressure transmitter 7, the electric ball valve 6, the electric regulating valve 9 and the electromagnetic flowmeter 8 are arranged on the supply pipeline 3 of the rotary atomizer 4, so that the pressure and the flow of the lime slurry in the supply pipeline 3 connected with the rotary atomizer 4 can be remotely acquired and regulated, and the accurate control of the slurry supply pressure and the flow of the rotary atomizer 4 can be realized; an electric ball valve 6 is arranged on the return pipeline 5, and accurate lime slurry pressure and flow are ensured to be provided for each rotary atomizer 4 through remotely controlling the electric ball valve 6; a plurality of rotary atomizers 4 share one lime slurry return line 5, so that the equipment cost is reduced. In the device, the supply pipeline 3 and the return pipeline 5 adopt seamless steel pipes, all bent pipes at the turning positions in the supply pipeline 3 and the return pipeline 5 adopt ceramic linings, and the bent pipes are connected with other pipelines by flanges.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A waste incineration lime slurry supply system, comprising:
the lime slurry feeding assembly comprises a lime slurry feeding tank (1) and a variable-frequency conveying pump (2), wherein the lime slurry feeding tank (1) is communicated with the variable-frequency conveying pump (2) through a feeding pipeline (3);
the rotary atomizers (4) are arranged in parallel, the rotary atomizers (4) are communicated with the variable-frequency conveying pump (2) through the supply pipeline (3), and a return pipeline (5) is communicated between the rotary atomizers (4) and the lime slurry supply tank (1);
the adjusting assembly comprises a plurality of electric ball valves (6), and the electric ball valves (6) are installed on the supply pipeline (3);
the measuring assembly comprises a plurality of pressure transmitters (7) and a plurality of electromagnetic flow meters (8), and the pressure transmitters (7) and the electromagnetic flow meters (8) are arranged on the supply pipeline (3) between the variable-frequency delivery pump (2) and the rotary atomizer (4);
and the variable-frequency delivery pump (2) and the electric ball valve (6) are respectively electrically connected with the controller.
2. The waste incineration lime slurry supply system of claim 1, wherein: a plurality of parallelly connected setting between pressure transmitter (7), a plurality of parallelly connected setting between electromagnetic flowmeter (8), pressure transmitter (7) with the quantity of electromagnetic flowmeter (8) respectively with the quantity of rotatory atomizer (4) corresponds the setting.
3. The waste incineration lime slurry supply system of claim 2, wherein: pressure transmitter (7) with install between electromagnetic flowmeter (8) electric ball valve (6), electric ball valve (6) with install electrical control valve (9) between electromagnetic flowmeter (8).
4. A waste incineration lime mud feed system according to claim 3, characterised in that: the supply pipelines (3) at the two ends of the variable-frequency delivery pump (2) are respectively provided with the electric ball valve (6) and the stop valve (10).
5. The waste incineration lime slurry supply system of claim 4, wherein: the shut-off valve (10) is located on the feed line (3) close to the lime slurry feed tank (1).
6. The waste incineration lime slurry supply system of claim 5, wherein: and the electric ball valves (6) on the return pipeline (5) are arranged in parallel.
7. The waste incineration lime slurry supply system of claim 6, wherein: the electric control valve (9), the pressure transmitter (7) and the electromagnetic flowmeter (8) are respectively electrically connected with the controller.
8. The waste incineration lime slurry supply system of claim 7, wherein: the lime slurry supply tank (1) is communicated with a lime slurry supply pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123209832.9U CN216458026U (en) | 2021-12-20 | 2021-12-20 | Msw incineration lime mud feed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123209832.9U CN216458026U (en) | 2021-12-20 | 2021-12-20 | Msw incineration lime mud feed system |
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| Publication Number | Publication Date |
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| CN216458026U true CN216458026U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123209832.9U Active CN216458026U (en) | 2021-12-20 | 2021-12-20 | Msw incineration lime mud feed system |
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| CN (1) | CN216458026U (en) |
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- 2021-12-20 CN CN202123209832.9U patent/CN216458026U/en active Active
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