Wastewater recovery device

Abstract

Black liquor can be injected into a heating pot, then a cover body is closed, the heating pot is operated, so that the heating pot heats and boils the black liquor, moisture in the black liquor is changed into steam to rise into a gas dispersing pipe, a plurality of blowers are operated, the steam is blown into a steam outlet pipe from the gas dispersing pipe by the blowers, and the waste water is recycled. Steam containing a large amount of water vapor is far away from the heating kettle, then the steam enters the condensation assembly along with the steam outlet pipe, when the steam passes through the condensation assembly, the steam is pre-cooled, the water vapor in the steam is condensed into water drops, then the water drops fall into the collection box to be collected, and waste gas is discharged into the waste gas treatment device from the condensation assembly to be treated. Therefore, black liquor can be combusted more conveniently and efficiently, moisture in the black liquor is evaporated in an accelerated mode, moisture in steam can be condensed and collected in the discharging process, water vapor in waste gas is reduced, and the waste gas can be better treated through the discharging treatment device.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking wastewater recovery technical field especially, relates to a wastewater recovery device. BACKGROUND

[0002] Traditional alkali recovery method is through a series of chemical and physical processes, the black liquor (main component is lignin, hemicellulose decomposition product and a large number of caustic soda) in the black liquor produced in the papermaking process (NaOH) is recovered, and valuable by-products such as steam and biomass fuel are produced, so as to realize the recycling of resources and environmental friendliness.

[0003] Due to the large tonnage of black liquor waste liquid, batch combustion evaporation is needed, when the traditional wastewater recovery device burns black liquor, steam cannot be well discharged outside the device, so that water vapor remains in the recovery device, and may encounter cold air during the rising process, and fall back to the inside of the black liquor, causing the evaporation efficiency to slow down, and the steam after combustion also needs to be discharged for treatment, because the steam contains a lot of water, directly entering the discharge treatment device can easily cause equipment damage, which is not conducive to subsequent waste gas treatment. SUMMARY

[0004] (I) technical problem to be solved

[0005] In order to solve the above problems of the prior art, the utility model provides a wastewater recovery device, which can more conveniently and efficiently burn black liquor, so that the water in the black liquor is evaporated, so that the water in the steam can be condensed and collected during the discharge process, reducing the water vapor in the waste gas, so that the discharge treatment device can better treat the waste gas.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model adopts the main technical scheme:

[0008] A wastewater recovery device, comprising a heating pot, a gas distribution pipe and a steam treatment mechanism, the heating pot is provided with an opening at the upper part, the gas distribution pipe is connected with the opening at the lower part, the gas distribution pipe is hingedly connected with a cover at the upper part, and the steam treatment mechanism is connected with the middle part of the gas distribution pipe.

[0009] The steam treatment mechanism comprises a plurality of air blowers, a steam outlet pipe, a condensation assembly and a collection box, one side of the gas distribution pipe is provided with a plurality of air blowers, one air blower is connected with one air blower, the other side of the gas distribution pipe is provided with a steam outlet, one end of the steam outlet pipe is connected with the steam outlet, the other end of the steam outlet pipe is provided with a condensation assembly at the upper part, and the collection box is arranged below the condensation assembly and connected with the lower part of the other end of the steam outlet pipe.

[0010] Further, the condensing assembly comprises a cooling bin, a cooling water circulating assembly and a plurality of cooling assemblies, the other end of the steam outlet pipe is provided with a through hole, the lower part of the cooling bin is connected with the upper part of the through hole, the inside of the cooling bin is provided with a plurality of cooling assemblies from bottom to top, the cooling assemblies are connected with the cooling water circulating assembly, the upper part of the cooling bin is provided with a waste gas outlet, and the collecting box is connected with the lower part of the through hole.

[0011] Further, the cooling assembly comprises an input pipe, an output pipe and a plurality of cooling rods, the input pipe is connected with the output pipe through the plurality of cooling rods, gaps are arranged between the cooling rods, the input pipe and the output pipe are fixedly connected with the inner wall of the cooling bin, the middle part of the cooling rod is provided with a flow channel, one end of the flow channel is connected with the input pipe, the other end of the flow channel is connected with the output pipe, and the input pipe and the output pipe are connected with the cooling water circulating assembly.

[0012] Further, the cooling water circulating assembly comprises a cooling water circulating box, a first main flow pipe, a second main flow pipe, a water inlet pipe and a water outlet pipe, the input pipes are connected with one side of the first main flow pipe, the output pipes are connected with one side of the second main flow pipe, the lower part of the cooling water circulating box is provided with a water outlet, the upper part of the cooling water circulating box is provided with a water inlet, the water outlet is connected with the other side of the first main flow pipe through the water inlet pipe, and the water inlet is connected with the second main flow pipe through the water outlet pipe.

[0013] Further, the lower part of the collecting box is provided with a drain port, and the inside of the drain port is provided with a plug.

[0014] Further, the heating pot is further provided with a valve body, and the lower part of the heating pot is provided with a discharge port, and the inside of the discharge port is provided with the valve body.

[0015] Further, the heating pot is further provided with a plurality of supporting legs, and the bottom of the heating pot is fixedly connected with the supporting legs.

[0016] Further, the heating pot is further provided with a PLC controller, and the PLC controller is electrically connected with the heating pot and the steam treatment mechanism.

[0017] (Three) beneficial effects

[0018] The papermaking black liquor waste water is injected into the heating pot, then the cover body is closed, and the heating pot is operated, so that the heating pot heats and boils the black liquor, then the water in the black liquor turns into steam and rises into the air distribution pipe, then several air blowers are operated, the air blowers blow the steam from the air distribution pipe into the steam outlet pipe, so that the steam containing a large amount of water vapor is far away from the heating pot, then the steam enters the inside of the condensing assembly through the steam outlet pipe, when passing through the condensing assembly, the steam is pre-cooled, the water vapor in the steam condenses into water droplets, then the water droplets fall into the collecting box for collection, and the waste gas is discharged from the condensing assembly to the waste gas treatment device for treatment, so that the black liquor can be burned more conveniently and efficiently, the water in the black liquor is evaporated at a high speed, so that the water in the steam can be condensed and collected in the discharging process, the water vapor in the waste gas is reduced, and the waste gas treatment device can better treat the waste gas. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an overall structure schematic view of the waste water recovery device of the embodiment of the utility model;

[0020] Figure 2 It is an overall structure front view of the waste water recovery device of the embodiment of the utility model;

[0021] Figure 3 It is an overall structure sectional view of the waste water recovery device of the embodiment of the utility model;

[0022] Figure 4 It is a cooling water circulation assembly and cooling assembly schematic view of the waste water recovery device of the embodiment of the utility model;

[0023] REFERENCE SIGNS

[0024] Steam outlet pipe 1, condensing assembly 2, collecting box 3, heating pot 4, supporting foot 5, air distribution pipe 6, air blower 7, cover body 8, drain port 9, valve body 10, through hole 11, cooling bin 201, water outlet pipe 202, cooling water circulation box 203, flow channel 204, water inlet pipe 205, first main flow pipe 206, second main flow pipe 207, output pipe 208, cooling rod 209, input pipe 210. DETAILED DESCRIPTION

[0025] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail in combination with the specific embodiments and the accompanying drawings.

[0026] Please refer to Figures 1 to 4As shown, the wastewater recycling device, including heating pot 4, air pipe 6 and steam treatment mechanism, the heating pot 4 upper portion is provided with opening, the air pipe 6 lower portion with the opening is connected, the air pipe 6 upper portion is hinged with cover 8, the steam treatment mechanism with the air pipe 6 middle part is connected;

[0027] The steam treatment mechanism includes several hair driers 7, steam outlet pipe 1, condensing assembly 2 and collection box 3, one side of the air pipe 6 is provided with several air outlets, one of the hair drier 7 is connected with one of the air outlet, the other side of the air pipe 6 is provided with steam outlet, one end of the steam outlet pipe 1 is communicated with the steam outlet, the other end of the steam outlet pipe 1 upper portion is provided with condensing assembly 2, the collection box 3 is arranged below the condensing assembly 2, and is connected with the lower part of the other end of the steam outlet pipe 1.

[0028] The working principle of the utility model is as follows: when the black liquor wastewater in the actual production and use process needs to be recovered, the black liquor can be injected into the heating pot 4, then the cover 8 is closed, and the heating pot 4 is operated, so that the heating pot 4 heats and boils the black liquor, then the water in the black liquor turns into steam and rises to the air pipe 6, then several hair driers 7 are operated, the hair drier 7 blows the steam from the air pipe 6 into the steam outlet pipe 1, so that the steam containing a large amount of water vapor is away from the heating pot 4, then the steam enters the condensing assembly 2 through the steam outlet pipe 1, the steam is pre-cooled when passing through the condensing assembly 2, the water vapor in the steam condenses into water droplets, then the water droplets fall into the collection box 3 for collection, and the waste gas is discharged from the condensing assembly 2 to the waste gas treatment device for treatment.

[0029] Further, the condensing assembly 2 includes cooling bin 201, cooling water circulation assembly and several cooling assemblies, the other end of the steam outlet pipe 1 is provided with through hole 11, the lower part of the cooling bin 201 is communicated with the upper part of the through hole 11, the inside of the cooling bin 201 is provided with several cooling assemblies from bottom to top, the cooling assemblies are connected with the cooling water circulation assembly, the upper part of the cooling bin 201 is provided with waste gas discharge port, and the collection box 3 is communicated with the lower part of the through hole 11.

[0030] From the above description, it can be known that when the steam enters the cooling bin 201 through the steam outlet pipe 1, the steam encounters several cooling assemblies in the rising process, the cooling assemblies condense the steam, so that the water vapor in the steam condenses into water droplets, then drops into the collection box 3 for collection, and the cooling water circulation assembly absorbs the hot water in the cooling assembly and inputs the cooled water into the cooling assembly, so as to ensure the cooling effect.

[0031] Further, the cooling assembly comprises input pipes 210, output pipes 208 and a plurality of cooling rods 209, the input pipes 210 are connected with the output pipes 208 through the cooling rods 209, gaps are arranged between the cooling rods 209, the input pipes 210 and the output pipes 208 are fixedly connected with the inner wall of the cooling bin 201, flow channels 204 are arranged in the middle of the cooling rods 209, one end of the flow channels 204 is communicated with the input pipes 210, the other end of the flow channels 204 is communicated with the output pipes 208, the input pipes 210 and the output pipes 208 are connected with the cooling water circulating assembly.

[0032] Further, the cooling water circulating assembly comprises a cooling water circulating box 203, first main flow pipes 206, second main flow pipes 207, water inlet pipes 205 and water outlet pipes 202, the input pipes 210 are communicated with one side of the first main flow pipes 206, the output pipes 208 are communicated with one side of the second main flow pipes 207, a water outlet is arranged at the lower part of the cooling water circulating box 203, a water inlet is arranged at the upper part of the cooling water circulating box 203, the water outlet is communicated with the other side of the first main flow pipes 206 through the water inlet pipes 205, the water inlet is communicated with the second main flow pipes 207 through the water outlet pipes 202.

[0033] From the above description, when it is necessary to reduce the water vapor in the steam, the cooling water circulating box 203 can be operated, so that the cooling water circulating box 203 inputs the cooled water into the first main flow pipes 206 through the water inlet pipes 205, then the water in the first main flow pipes 206 is input into the flow channels 204 of the cooling rods 209 through the input pipes 210, when the steam passes through the cooling rods 209, the cooling water in the cooling rods 209 exchanges heat with the steam, so that the water vapor in the steam is condensed, and the condensed water falls into the collecting box 3, when the cooling water in the cooling rods 209 absorbs a certain temperature, the condensed water in the cooling rods 209 is discharged into the second main flow pipes 207 through the output pipes 208, then the second main flow pipes 207 discharge the water into the cooling water circulating box 203 through the water outlet pipes 202 for cooling, and input the water in the cooling water circulating box 203 into the cooling rods 209, to complete one cycle after another, so that the water vapor in the steam is better condensed.

[0034] Further, a drain port 9 is arranged at the lower part of the collecting box 3, a plug is arranged in the drain port 9.

[0035] From the above description, the water in the collecting box 3 is better discharged from the drain port 9, when the heating pot 4 is boiled, the drain port 9 is plugged through the plug, to prevent the steam from being discharged outside the device through the drain port 9.

[0036] Further, the valve body 10 is arranged inside the discharge port of the lower part of the heating pot 4.

[0037] From the above description, it is beneficial for the concentrated alkaline substances to be better discharged outside through the discharge port, and the valve body 10 is better controlled to open and close the discharge port.

[0038] Further, the support feet 5 are fixedly connected to the bottom of the heating pot 4.

[0039] From the above description, it is beneficial for the device to run more stably, so that the concentrated alkaline substances are better discharged through the discharge port.

[0040] Further, the PLC controller is electrically connected with the heating pot 4 and the steam treatment mechanism.

[0041] From the above description, it is beneficial for the parameters of the wastewater recovery device to be adjusted by the PLC controller, and the operator is more convenient when operating the wastewater recovery device. Embodiment one

[0042] Please refer to Figures 1 to 4 A wastewater recovery device, comprising a heating pot 4, a gas distribution pipe 6 and a steam treatment mechanism, wherein the upper part of the heating pot 4 is provided with an opening, the lower part of the gas distribution pipe 6 is connected with the opening, the upper part of the gas distribution pipe 6 is hingedly connected with a cover 8, and the steam treatment mechanism is connected with the middle part of the gas distribution pipe 6.

[0043] The heating pot 4 is an electric heating pot.

[0044] The steam treatment mechanism comprises a plurality of air blowers 7, a steam outlet pipe 1, a condensing assembly 2 and a collection box 3, one side of the gas distribution pipe 6 is provided with a plurality of air blowers, one air blower 7 is connected with one air blower, the other side of the gas distribution pipe 6 is provided with a steam outlet, one end of the steam outlet pipe 1 is connected with the steam outlet, the other end of the steam outlet pipe 1 is provided with the condensing assembly 2, the collection box 3 is arranged below the condensing assembly 2 and connected with the lower part of the other end of the steam outlet pipe 1.

[0045] The condensing assembly 2 comprises a cooling bin 201, a cooling water circulation assembly and a plurality of cooling assemblies, the other end of the steam outlet pipe 1 is provided with a through hole 11, the lower part of the cooling bin 201 is connected with the upper part of the through hole 11, the inside of the cooling bin is provided with a plurality of cooling assemblies from bottom to top, the cooling assemblies are connected with the cooling water circulation assembly, the upper part of the cooling bin 201 is provided with a waste gas discharge port, and the collection box 3 is connected with the lower part of the through hole 11.

[0046] The cooling assembly comprises an input pipe 210, an output pipe 208 and a plurality of cooling rods 209, the input pipe 210 is connected with the output pipe 208 through the plurality of cooling rods 209, gaps are arranged between the cooling rods 209, the input pipe 210 and the output pipe 208 are fixedly connected with the inner wall of the cooling bin 201, a flow channel 204 is arranged in the middle of the cooling rod 209, one end of the flow channel 204 is communicated with the input pipe 210, the other end of the flow channel 204 is communicated with the output pipe 208, and the input pipe 210 and the output pipe 208 are connected with the cooling water circulating assembly;

[0047] The cooling rod 209 is made of brass, which is beneficial to better guide the heat of the cooling water in and out through the brass material;

[0048] The cooling water circulating assembly comprises a cooling water circulating box 203, a first main flow pipe 206, a second main flow pipe 207, a water inlet pipe 205 and a water outlet pipe 202, the input pipe 210 is communicated with one side of the first main flow pipe 206, the output pipe 208 is communicated with one side of the second main flow pipe 207, a water outlet is arranged at the lower part of the cooling water circulating box 203, a water inlet is arranged at the upper part of the cooling water circulating box, the water outlet is communicated with the other side of the first main flow pipe 206 through the water inlet pipe 205, and the water inlet is communicated with the second main flow pipe 207 through the water outlet pipe 202;

[0049] The collecting box 3 is provided with a drain port 9, and the drain port 9 is internally provided with a plug;

[0050] The heating pot 4 is provided with a discharge port, and the discharge port is internally provided with the valve body 10;

[0051] The valve body 10 is a stop valve;

[0052] The heating pot 4 is provided with a discharge port, and the discharge port is internally provided with the valve body 10;

[0053] The PLC controller is electrically connected with the heating pot 4 and the steam treatment mechanism;

[0054] The PLC controller is electrically connected with the heating pot 4, the blower 7, the cooling water circulating box 203 and the valve body 10.

[0055] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0056] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A wastewater recovery apparatus, characterized by: Including heating pot, air diffuser and steam treatment mechanism, the upper part of the heating pot is provided with an opening, the lower part of the air diffuser is connected with the opening, the upper part of the air diffuser is hinged with a cover, and the steam treatment mechanism is connected with the middle part of the air diffuser. The steam treatment mechanism includes several blowers, steam outlets, condensing assemblies and collection boxes, one side of the air diffuser is provided with several blowout openings, one of the blowers is connected with one of the blowout openings, the other side of the air diffuser is provided with a steam outlet, one end of the steam outlet is connected with the steam outlet, the other end of the steam outlet is provided with a condensing assembly on the upper part, and the collection box is arranged below the condensing assembly and connected with the lower part of the other end of the steam outlet.

2. The wastewater recovery apparatus of claim 1, wherein: The condensing assembly includes cooling bins, cooling water circulation assemblies and several cooling assemblies, the other end of the steam outlet is provided with a through hole, the lower part of the cooling bin is connected with the upper part of the through hole, the inside of the cooling bin is provided with several cooling assemblies from bottom to top, the cooling assemblies are connected with the cooling water circulation assemblies, and the upper part of the cooling bin is provided with a waste gas discharge outlet.

3. The wastewater recovery apparatus of claim 2, wherein: The cooling assembly includes an input pipe, an output pipe and several cooling rods, the input pipe is connected with the output pipe through the cooling rods, gaps are arranged between the cooling rods, the input pipe and the output pipe are fixedly connected with the inner wall of the cooling bin, the middle part of the cooling rod is provided with a flow channel, one end of the flow channel is connected with the input pipe, the other end of the flow channel is connected with the output pipe, and the input pipe and the output pipe are connected with the cooling water circulation assembly.

4. The wastewater recovery apparatus of claim 3, wherein: The cooling water circulation assembly includes a cooling water circulation box, a first main flow pipe, a second main flow pipe, a water inlet pipe and a water outlet pipe, the input pipe is connected with one side of the first main flow pipe, the output pipe is connected with one side of the second main flow pipe, the lower part of the cooling water circulation box is provided with a water outlet, the upper part of the cooling water circulation box is provided with a water inlet, the water outlet is connected with the other side of the first main flow pipe through the water inlet pipe, and the water inlet is connected with the second main flow pipe through the water outlet pipe.

5. The wastewater recovery apparatus of claim 1, wherein: The lower part of the collection box is provided with a drain, and the inside of the drain is provided with a plug.

6. The wastewater recovery apparatus of claim 1, wherein: It also includes a valve body, the lower part of the heating pot is provided with a discharge port, and the inside of the discharge port is provided with the valve body.

7. The wastewater recovery apparatus of claim 1, wherein: It also includes support feet, and the bottom of the heating pot is fixedly connected with several support feet.

8. The wastewater recovery apparatus of claim 1, wherein: It also includes a PLC controller, and the PLC controller is electrically connected with the heating pot and the steam treatment mechanism respectively. It also includes a PLC controller, and the PLC controller is electrically connected with the heating pot and the steam treatment mechanism respectively.

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