Device for treating stink and peculiar smell generated by sludge solidification in negative pressure greenhouse

Abstract

The utility model relates to the technical field of treatment of stink and peculiar smell generated by sludge solidification, in particular to a treatment device for stink and peculiar smell generated by sludge solidification in a negative pressure greenhouse, which comprises a dispensing mechanism, the dispensing mechanism is connected with a spray liquid preparation mechanism, and the spray liquid preparation mechanism is connected with a deodorization mechanism; the deodorization mechanism comprises a negative pressure greenhouse, a spraying module is arranged in the negative pressure greenhouse, and the spraying module is connected with the spraying liquid preparation mechanism. According to the device, the spraying modules are arranged on the negative-pressure greenhouse at intervals, so that a multi-stage spraying structure is formed, the absorption and reaction effects of a solution on foul odor are enhanced, it is ensured that foul odor treatment in the greenhouse reaches the standard, and the content of generated foul odor gas is effectively reduced. Compared with a traditional tail gas treatment mode, the requirement for the number of devices is reduced, and energy consumption and cost are reduced. And by accurately controlling the flow of the spraying liquid, the waste of the medicament is avoided, so that resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge solidification produces the stink peculiar smell processing technical field, concretely relates to a kind of sludge solidification produces stink peculiar smell processing device in negative pressure greenhouse. BACKGROUND

[0002] Sludge solidification technology is divided into in-situ solidification and ex-situ solidification technology according to whether it needs to dig and disturb original sludge, and the ex-situ solidification technology refers to transporting sludge to a closed negative pressure greenhouse for disposal, adding solidification reagent to the sludge and stirring to meet the requirements of treatment, mechanical properties and environmental indicators.

[0003] The conventional treatment method for sludge solidification producing stink peculiar smell in the closed negative pressure greenhouse is to use a draught fan to collect the stink peculiar smell to the tail gas treatment device outside the greenhouse, and then discharge it up to standard. Because the sources and pollution levels of sludge entering the greenhouse are different, the concentration of stink peculiar smell is different. For high-concentration stink peculiar smell, the treatment effect and economy are good, but for medium and low-concentration stink peculiar smell, it will cause waste of funds.

[0004] Therefore, the present inventors provide a sludge solidification stink peculiar smell treatment device in a negative pressure greenhouse to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the shortcomings of the prior art, and provides a sludge solidification stink peculiar smell treatment device in a negative pressure greenhouse, which removes stink peculiar smell in the greenhouse by spraying prepared solution, solves the problems of multiple tail gas treatment equipment, high energy consumption, high cost and large personnel investment, and can realize simple and efficient treatment of sludge solidification stink peculiar smell.

[0006] The utility model aims to solve the problems by the following technical solutions.

[0007] The sludge solidification stink peculiar smell treatment device in a negative pressure greenhouse comprises a dispensing mechanism, a spraying liquid preparation mechanism connected to the dispensing mechanism, and a deodorization mechanism connected to the spraying liquid preparation mechanism.

[0008] Further, the spraying liquid preparation mechanism comprises a first bottom crowbar connected to the ground, a spraying tank and a spraying pump arranged on the top of the first bottom crowbar, the spraying tank is connected to the dispensing mechanism, the liquid outlet of the spraying tank is connected to the liquid inlet of the spraying pump, and the liquid outlet of the spraying pump is connected to the spraying module.

[0009] Further, a first stirrer is arranged on the spraying tank, and the stirring part of the first stirrer extends into the interior of the spraying tank.

[0010] Further, the dispensing mechanism comprises a second crowbar, a third crowbar and a fourth crowbar which are connected with the ground respectively, the top of the second crowbar is provided with a NaOH solution dispensing module which is connected with a spray tank, the top of the third crowbar is provided with a NaCLO solution dispensing module which is connected with a spray tank, and the top of the fourth crowbar is provided with a plant extract liquid dispensing module which is connected with a spray tank.

[0011] Further, the NaOH solution dispensing module, the NaCLO solution dispensing module and the plant extract liquid dispensing module are of the same structure and are connected with the spray tank in the same way.

[0012] The NaOH solution dispensing module comprises a dispensing barrel and a dosing pump which is connected with the dispensing barrel, and a flow meter and a pressure gauge are connected with the output pipe of the dosing pump.

[0013] The dispensing barrel is provided with a second stirrer, and the stirring part of the second stirrer extends into the inside of the dispensing barrel.

[0014] Further, the spray module comprises a plurality of spray assemblies which are connected with the spray pump, each of the spray assemblies is arranged in a circle along the periphery of the negative pressure greenhouse and is arranged at intervals from the top of the negative pressure greenhouse to the ground.

[0015] Further, any adjacent spray assemblies are arranged at equal intervals, and the interval is 800mm-1000mm.

[0016] Further, each of the spray assemblies comprises a spray main pipe, a plurality of connectors are arranged at intervals on the outer wall of the spray main pipe, each of the connectors is connected with a spray nozzle which is perpendicular to the ground, wherein the spray nozzle is connected with the spray main pipe, and a valve is arranged on the spray main pipe.

[0017] Further, the interval between any two adjacent connectors is 300mm-500mm.

[0018] Further, the number of the plurality of spray assemblies is three, the interval between the first spray assembly and the inner wall of the negative pressure greenhouse is 600mm, the interval between the second spray assembly and the inner wall of the negative pressure greenhouse is 400mm, and the interval between the third spray assembly and the inner wall of the negative pressure greenhouse is 200mm.

[0019] Further, a gas detector for detecting the concentration of foul odor is arranged in the negative pressure greenhouse, and the distance between the gas detector and the ground is 2000mm-3000mm.

[0020] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0021] The utility model provides a kind of sludge solidification produces stench smell processing device in negative pressure greenhouse, the device is formed by interval arrangement spray module on negative pressure greenhouse, forms multistage spray structure, enhances the absorption and reaction effect of solution to stench smell, ensure that stench smell treatment in greenhouse is up to standard, effectively reduce the content of stench smell gas generated. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings incorporated herein in the specification and forming a part thereof, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given to the drawings needed in the embodiments or prior art description, and obviously, other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying the cost of creativity.

[0024] Fig. 1 It is the structural schematic diagram of the processing device of the utility model;

[0025] Fig. 2 It is the structural schematic diagram of the spray main pipe part of the utility model.

[0026] Among them: 1 is dispensing mechanism;11 is NaOH solution dispensing module;111 is dispensing barrel;112 is dosing pump;113 is flowmeter;114 is stirrer;12 is NaCLO solution dispensing module;13 is plant extract liquid dispensing module;2 is spray liquid preparation mechanism;21 is spray tank;22 is spray pump;3 is deodorization mechanism;31 is negative pressure greenhouse;32 is spray module;321 is spray assembly;3211 is spray main pipe;32111 is connector;32112 is spray nozzle;4 is gas detector. DETAILED DESCRIPTION

[0027] The exemplary embodiments will be described in detail below with reference to the drawings. The following description is presented in connection with the drawings, in which the same numbers indicate the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not meant to represent all implementations in which one can practice the present application. Rather, they are merely examples of apparatuses in conformance with some aspects of the present application as detailed in the appended claims.

[0028] In order to make the technical scheme of the present application better understood, the present application will be further described in detail below with reference to the drawings and embodiments.

[0029] Please refer to Figs. 1-2 The embodiment provides a device for treating sludge solidification odor in a negative pressure greenhouse, which comprises a dispensing mechanism 1, a spraying liquid preparation mechanism 2 connected to the dispensing mechanism 1, and a deodorization mechanism 3 connected to the spraying liquid preparation mechanism 2.

[0030] Further, the spraying liquid preparation mechanism 2 comprises a first base connected to the ground, a spraying tank 21 and a spraying pump 22 arranged on the top of the first base, the spraying tank 21 is connected to the dispensing mechanism 1, the liquid outlet of the spraying tank 21 is connected to the liquid inlet of the spraying pump 22, and the liquid outlet of the spraying pump 22 is connected to the spraying module 32.

[0031] Specifically, in the embodiment, the effective volume of the spraying tank 21 is 1m 3 , the cross section is circular, and the material is 8mm PE.

[0032] Further, the spraying tank 21 is provided with a first stirrer, and the stirring part of the stirrer extends into the inside of the spraying tank 21.

[0033] Further, the dispensing mechanism 1 comprises a second base, a third base and a fourth base connected to the ground respectively, the top of the second base is provided with a NaOH solution dispensing module 11 connected to the spraying tank 21, the top of the third base is provided with a NaCLO solution dispensing module 12 connected to the spraying tank 21, and the top of the fourth base is provided with a plant extract liquid dispensing module 13 connected to the spraying tank 21.

[0034] Further, the NaOH solution dispensing module 11, the NaCLO solution dispensing module 12 and the plant extract solution dispensing module 13 have the same structure and the same connection mode with the spray tank 21; wherein the NaOH solution dispensing module 11 comprises a dispensing barrel 111 and a dosing pump 112 connected with the dispensing barrel 111, and a flow meter 113 and a pressure gauge are connected with the output pipe of the dosing pump 112; a second stirrer 114 is arranged on the dispensing barrel 111, and the stirring part of the second stirrer 114 extends into the inside of the dispensing barrel 111.

[0035] Specifically, in the embodiment, the effective volume of the dispensing barrel 111 is 1m 3 , the cross section is circular, and the material is 8mm PE. The dosing pump 112 adopts a chemical pipeline centrifugal pump, the flow rate is 1m 3 / h, the lift is 20m, and the over-flow material is carbon steel corrosion-proof. The flow meter 113 adopts a common electromagnetic flow meter. The power of the stirrer is 1.5kW, and the stirring shaft and the paddle of the stirrer are made of carbon steel corrosion-proof material.

[0036] Specifically, the concentration of the NaOH solution is set to 3%, and the NaOH solution is diluted and configured by using a conventional liquid alkali with a content of 30%, which has the effect of reacting with and reducing the content of hydrogen sulfide. The method for configuring the NaOH solution is that 90㎏ of liquid alkali with a content of 30% is added into the dispensing barrel 111 of the NaOH solution, and 900㎏ of water is added.

[0037] Specifically, the concentration of the NaCLO solution is set to 0.5%, and the NaCLO solution is diluted and configured by using a conventional solution with a content of 10%, which has the effect of sterilization and disinfection, and the NaCLO solution reacts with ammonia gas to reduce the content of ammonia gas. The method for configuring the NaCLO solution is that 45㎏ of liquid alkali with a content of 30% is added into the dispensing barrel 111 of the NaCLO solution, and 900㎏ of water is added.

[0038] Specifically, the concentration of the plant extract solution is set to 0.2%, and the plant extract solution is diluted and configured by using a green biological plant extract solution with a content of 10%, which has the effect of capturing and absorbing foul odor molecules to reduce the content of foul odor gas. The method for configuring the plant extract solution is that 18㎏ of green biological plant extract solution with a content of 10% is added into the dispensing barrel 111 of the plant extract solution, and 900㎏ of water is added.

[0039] Specifically, the spray liquid in the spray liquid preparation mechanism 2 is compounded by the NaOH solution, the NaCLO solution and the plant extract solution, and the compounding ratio is mass ratio: NaOH solution: NaCLO solution: plant extract solution = 2:2:1.

[0040] Further, the spraying module 32 comprises a plurality of spraying assemblies 321, each of which is connected with the spraying pump 22, each spraying assembly 321 is arranged in a circle along the periphery of the negative pressure greenhouse 31, and is arranged in intervals from the top of the negative pressure greenhouse 31 to the ground.

[0041] Further, any adjacent spraying assemblies 321 are arranged at equal intervals, and the interval is 800mm-1000mm.

[0042] Further, each spraying assembly 321 comprises a spraying main pipe 3211, a plurality of connectors 32111 are arranged at intervals on the outer wall of the spraying main pipe 3211, each connector 32111 is connected with a spraying nozzle 32112 which is perpendicular to the ground, wherein the spraying nozzle 32112 is connected with the spraying main pipe 3211, and a valve is arranged on the spraying main pipe 3211.

[0043] Specifically, in the embodiment, the pipe diameter of the spraying main pipe 3211 is DN25, the material is UPVC, and the spraying main pipe 3211 is fixed and supported by a support. The spraying nozzle 32112 is vertically installed outside the connector 32111 and is connected by external threads, the material of the spraying nozzle 32112 is 304 stainless steel, the working pressure is 0.1MPa-0.5MPa, and the hole diameter is 1.8mm.

[0044] Specifically, in the embodiment, when the spraying assembly 321 is one level, because its spraying range is limited, and the spraying solution prepared by the spraying solution preparation mechanism 2 cannot fully react with the gas producing malodorous odor in the sludge and lose activity, not only the spraying solution is wasted, but also the purpose of fully removing malodorous odor cannot be achieved. When the spraying assembly 321 is multi-level, the superimposed spraying of the spraying solution can be achieved, and the spraying range of the spraying solution is increased. At the same time, when the malodorous odor in the negative pressure greenhouse 31 is diffused from the sludge to the top of the negative pressure greenhouse 31, the spraying solution and the gas producing malodorous odor further fully react, so that the concentration of malodorous odor is fully reduced, and the work in the negative pressure greenhouse 31 is in a safe environment.

[0045] Further, in the embodiment, when two or three levels of spraying assemblies 321 are arranged in the negative pressure greenhouse 31, a gas detector 4 is used to monitor the concentration of malodorous odor, and the specific data is shown in the following table:

[0046] Table 1 Malodorous odor concentration monitoring data when spraying with different levels of spraying assemblies

[0047]

[0048] Limit: "Malodorous pollutant emission standard" (GB 14554-93)

[0049] Through the monitoring data provided in the above table, when the spraying assembly 321 with three stages is used for spraying in the negative pressure greenhouse 31, the concentrations of odor, ammonia and hydrogen sulfide are obviously lower than the data when the spraying assembly 321 with two stages is used for spraying.

[0050] Further, the spacing between any two adjacent connectors 32111 is 300mm-500mm.

[0051] Specifically, in the embodiment, the connectors 32111 are vertically installed on the lower half of the spraying main pipe 3211 near the side of the negative pressure greenhouse 31.

[0052] Further, the negative pressure greenhouse 31 is also provided with a gas detector 4 for detecting the concentration of foul odor, and the gas detector 4 is 2000mm-3000mm away from the ground.

[0053] Specifically, in the embodiment, the gas detector 4 is installed in the negative pressure greenhouse 31, and the vertical distance between the gas detector 4 and the ground is 2000mm-3000mm. The gas detector 4 can continuously monitor the concentration of foul odor gas in the negative pressure greenhouse 31, and the industrial touch display and large screen display are clear. The gas detector 4 integrates GPRS communication technology, monitors real-time data and transmits the data to the project risk control platform, and also has an alarm function. When the concentration of foul odor gas exceeds the standard, the alarm is started to avoid poisoning of personnel.

[0054] The above is only a specific embodiment of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0055] It should be understood that the present application is not limited to the above described and that various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A device for treating odorous odor generated by sludge solidification in a negative pressure greenhouse, characterized in that, Including dispensing mechanism (1), the dispensing mechanism (1) is connected with spray liquid preparation mechanism (2), and the spray liquid preparation mechanism (2) is connected with deodorization mechanism (3); The deodorization mechanism (3) includes a negative pressure greenhouse (31), a spray module (32) is arranged in the negative pressure greenhouse (31), and the spray module (32) is connected with the spray liquid preparation mechanism (2).

2. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 1, characterized in that, The spray liquid preparation mechanism (2) includes a first skid connected with the ground, a spray tank (21) and a spray pump (22) are arranged on the top of the first skid, the spray tank (21) is connected with the dispensing mechanism (1), the liquid outlet of the spray tank (21) is connected with the liquid inlet of the spray pump (22), and the liquid outlet of the spray pump (22) is connected with the spray module (32).

3. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 2, characterized in that, A first stirrer is arranged on the spray tank (21), and a stirring part of the first stirrer extends into the interior of the spray tank (21).

4. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 2, characterized in that, The dispensing mechanism (1) includes a second skid, a third skid and a fourth skid connected with the ground respectively, a NaOH solution dispensing module (11) connected with the spray tank (21) is arranged on the top of the second skid, a NaCLO solution dispensing module (12) connected with the spray tank (21) is arranged on the top of the third skid, and a plant extract liquid dispensing module (13) connected with the spray tank (21) is arranged on the top of the fourth skid.

5. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 4, characterized in that, The NaOH solution dispensing module (11), the NaCLO solution dispensing module (12) and the plant extract liquid dispensing module (13) are the same in structure and the same in connection mode with the spray tank (21); The NaOH solution dispensing module (11) includes a dispensing barrel (111) and a dosing pump (112) connected with the dispensing barrel (111), a flowmeter (113) and a pressure gauge are connected on the output pipe of the dosing pump (112); A second stirrer (114) is arranged on the dispensing barrel (111), and a stirring part of the second stirrer (114) extends into the interior of the dispensing barrel (111).

6. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 2, characterized in that, The spray module (32) includes a plurality of spray assemblies (321) connected with the spray pump (22), each spray assembly (321) is arranged in a circle along the periphery of the negative pressure greenhouse (31) and is arranged in a spaced-apart manner from the top of the negative pressure greenhouse (31) to the ground.

7. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 6, characterized in that, Any adjacent spray assembly (321) is arranged at equal intervals, and the interval is 800mm-1000mm.

8. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 6, characterized in that, Each spray assembly (321) includes a spray main pipe (3211), a plurality of connectors (32111) are arranged on the outer wall of the spray main pipe (3211) in a spaced-apart manner, each connector (32111) is connected with a spray nozzle (32112) perpendicular to the ground, wherein the spray nozzle (32112) is connected with the spray main pipe (3211), and a valve is arranged on the spray main pipe (3211).

9. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 8, characterized in that, The interval between any two adjacent connectors (32111) is 300mm-500mm.

10. The device for treating odor produced by sludge solidification in a negative pressure greenhouse according to claim 1, characterized in that, The negative pressure greenhouse (31) is further provided with a gas detector (4) for detecting the concentration of foul odor, and the gas detector (4) is 2000mm-3000mm away from the ground.

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