CN209619058U - A cleaning device for the coagulation tank of the desulfurization wastewater zero discharge system - Google Patents

Abstract

The utility model discloses a cleaning device for a coagulation tank of a desulfurization wastewater zero discharge system. The coagulation tank includes a neutralization tank, a reaction tank and a flocculation tank each equipped with a stirring mechanism. The cleaning device includes a connecting neutralization tank, The sludge cleaning box of the reaction box and the flocculation box; the neutralization box, the reaction box and the flocculation box are all equipped with a sludge thickness detection mechanism, a filter structure connected with the sludge cleaning box, and a driving mechanism for driving the filter structure to open or close The sludge thickness detection mechanism includes a vacuum tube connected to the pool body, a detection device installed in the vacuum tube, and an adjustment component for adjusting the position of the detection device in the vacuum tube. The vacuum tube is provided with a transparent window, and the detection device is located at the transparent window. ; An alarm device is provided on the pool body, and the alarm device is electrically connected with the detection device. The setting of the sludge cleaning box can centrally treat the sediment in the neutralization box, the reaction box and the flocculation box, which facilitates the cleaning of the pool body and improves the treatment purity of the wastewater.

Description

A cleaning device for the coagulation tank of the desulfurization wastewater zero discharge system

technical field

The utility model relates to the technical field of industrial wastewater treatment, in particular to a cleaning device for a coagulation tank of a desulfurization wastewater zero discharge system.

Background technique

Desulfurization wastewater is mainly the discharge water from the absorption tower during the wet desulfurization process of boiler flue gas. In order to maintain the balance of substances in the slurry circulation system of the desulfurization unit, prevent the soluble part of the flue gas, that is, the chlorine concentration from exceeding the specified value, and ensure the quality of gypsum, a certain amount of wastewater must be discharged from the system. The wastewater mainly comes from the gypsum dehydration and cleaning system. Desulfurization wastewater has high salt content, high hardness, high silicate, high chloride, heavy metals, etc.

Publication No. CN108046478A discloses a power plant desulfurization wastewater treatment system, including a first concentrated clarifier, a waste water collection tank, a triple tank, a second concentrated clarifier, a filter and a clear water tank, and the front end of the first concentrated clarifier introduces For desulfurization waste water, the rear end is connected to the waste water collection tank, triple tank, second concentrated clarifier, filter and clear water tank in sequence through pipelines. In the aforementioned power plant desulfurization wastewater treatment system, the triple tank includes a neutralization tank, a reaction tank and a flocculation tank connected in sequence.

However, in the actual operation process, more sludge will be deposited in the neutralization tank, reaction tank and flocculation tank, thus affecting the treatment purity of wastewater.

Utility model content

Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide a cleaning device for the coagulation tank of the desulfurization wastewater zero discharge system, which can conveniently clean the tank body after accumulating sludge with a set thickness , Improve the purity of wastewater treatment.

In order to achieve the above object, the utility model provides the following technical solutions:

A cleaning device for a coagulation tank of a desulfurization wastewater zero discharge system, the coagulation tank includes a tank body, and the tank body includes a neutralization tank, a reaction tank, and a flocculation tank each equipped with a stirring mechanism. One side of the neutralization tank is provided with a waste water inlet pipe, and the neutralization tank, the reaction tank and the flocculation tank are provided with chemical pipelines, and the cleaning device includes a sludge cleaning tank connected to the neutralization tank, the reaction tank and the flocculation tank; The neutralization tank, the reaction tank and the flocculation tank are equipped with a sludge thickness detection mechanism, a filter structure connected to the sludge cleaning tank, and a driving mechanism for driving the filter structure to open or close;

The sludge thickness detection mechanism includes a vacuum tube connected to the tank body, a detection device arranged in the vacuum tube, and an adjustment assembly for adjusting the position of the detection device in the vacuum tube. The vacuum tube is provided with a transparent window, and the detection device set at the transparent window;

An alarm device is arranged on the pool body, and the alarm device is electrically connected with the detection device.

By adopting the above technical scheme, according to the requirement, the position of the detection device is adjusted by adjusting the components. When the detection device in the vacuum tube detects that the thickness of the sludge exceeds the set thickness, the alarm device works to remind the staff that the sludge needs to be cleaned; the staff Start the drive mechanism to open the leaky screen structure, so that the flushed sludge can flow into the sludge cleaning tank through the leaky screen structure for centralized cleaning. The operation is simple and convenient, and the treatment purity of wastewater can be improved.

Further, the adjustment assembly includes a connecting rod threadedly connected to the rotary cover at the end of the vacuum tube, and one end of the connecting rod inside the vacuum tube is connected to the detection device; and the rotary cover is connected to the vacuum tube in rotation around the vacuum tube axis , the vacuum tube is provided with a guide mechanism slidingly connected with the connecting rod.

By adopting the above technical solution, turning the rotating cover can enable the connecting rod to move axially along the vacuum tube under the action of the guide mechanism, so as to achieve the purpose of adjusting the position of the detection device, and the operation is simple and convenient.

Further, the guide mechanism includes a chute provided on the inner wall of the vacuum tube along the axial direction of the vacuum tube, and a slider whose one end is fixedly connected to the connecting rod and the other end is slidably connected to the chute.

By adopting the above technical solution, the connecting rod can only move in the axial direction of the vacuum tube.

Further, a desiccant holding tank is provided at the bottom of the vacuum tube.

By adopting the above technical scheme, the environment in the vacuum tube is kept dry, and the purpose of protecting the detection device is achieved.

Further, the detection device includes an infrared sensor, and the emitting end of the infrared sensor faces outside through the transparent window; and the infrared sensor is connected to one end of the connecting rod, and is electrically connected to the alarm device.

Further, the leaking net structure includes mounting holes respectively opened in the neutralization tank, the reaction tank, and the bottom of the flocculation tank to communicate with the sludge cleaning tank, and a mounting piece connected to the mounting hole, and the mounting piece faces the side of the pool body. One side is provided with a driving part, and the mounting part is provided with a plurality of through holes communicating with the sludge cleaning box along its circumference.

By adopting the above technical scheme, during the normal operation of the neutralization tank, the reaction tank and the flocculation tank, the installation parts are connected to the installation holes, so that the sludge cleaning tank is not connected with the neutralization tank, the reaction tank and the flocculation tank; When cleaning the sludge in the neutralization box, reaction box and flocculation box, the driving part drives the mounting part to rotate, so that the through hole exposes the bottom surface of the neutralization box, reaction box and flocculation box, so that the sludge in the neutralization box, reaction box and flocculation box The mud flows into the sludge cleaning box through the through hole for centralized treatment of the sludge.

Further, the driving mechanism includes a screw provided on the stirring mechanism, and the driving part includes a screw hole with the screw.

By adopting the above technical scheme, the power of the stirring mechanism is used to drive the rotation of the mounting parts, which achieves the rational utilization of resources; at the same time, because the depth of the neutralization tank, the reaction tank and the flocculation tank is relatively deep, the stirring mechanism is used to achieve the rotation of the driven mounting parts. The purpose is also convenient for workers to operate.

Further, the stirring mechanism includes a motor installed on the top of the pool body with the output shaft facing the bottom of the pool body, a rotating shaft keyed to the motor, and paddles arranged on the rotating shaft, and the screw is integrally arranged on the rotating shaft The end away from the motor;

And the top of the pool body is provided with a driving assembly for driving the motor to move axially along its output shaft, and the driving part is located on the axial extension of the motor output shaft.

Further, the top of the pool body is rotatably connected with an operation panel, the operation panel includes a support part and a rotation part, the support part and the rotation part are arranged in an L shape, and one end of the support part is in contact with the motor; the top of the pool body is also A locking block for locking the rotating part is provided.

By adopting the above-mentioned technical scheme, when performing normal stirring work, the block blocks the rotating part, making the supporting part in a vertical state, so that the screw rod connected to the rotating shaft is separated from the screw hole, and at this time, the blade is in the corresponding box. The liquid is stirred, so that the wastewater can be fully mixed with the medicament, and at the same time, the generated sediment can be prevented from accumulating at the bottom of the tank.

When the sludge thickness detection mechanism detects that the thickness of the sludge exceeds the set value, the staff turns the block to separate it from the rotating part, so that the rotating part can rotate, so that the supporting part is placed horizontally, which plays a role in the motor As a supporting function, the motor slowly moves down with the rotation of the supporting part, so that the screw rod is in contact with the screw hole. Turn the motor so that the mounting part can move upward under the rotation of the screw rod, so that the through hole exposes the bottom surface of the box body for the sludge to flow into the sludge cleaning box. The waste liquid in the sludge cleaning tank is processed by the sludge treatment machine, the sludge is discharged, and the liquid is re-passed into the neutralization tank to fully purify the wastewater and save water resources.

Compared with the prior art, the utility model has the advantages of:

1. The mud thickness detection mechanism can detect the thickness of sludge accumulation in the neutralization box, reaction box and flocculation box, and when the sludge accumulation is too thick, the alarm device will be activated to remind the staff to process the sludge; sludge The setting of the cleaning box can centrally treat the sediment in the neutralization box, reaction box and flocculation box, which facilitates the cleaning of the pool body and improves the purity of wastewater treatment;

2. By moving up and down the position of the motor of the stirring mechanism, the purpose of stirring and lifting the mounting parts can be achieved through the motor, saving resources, and the operation is simple and convenient.

Description of drawings

Fig. 1 is the structural representation of coagulation tank;

Fig. 2 is the structural representation of the sludge thickness detection mechanism;

Fig. 3 is the state schematic diagram of stirring mechanism stirring work;

Fig. 4 is a schematic diagram of a state in which the stirring mechanism drives the mounting part up.

Reference signs: 100, pool body; 110, first partition; 120, second partition; 130, neutralization tank; 131, waste water inlet pipe; 132, chemical pipeline; 140, reaction tank; 150, flocculation tank; 160. Slip-through structure; 161. Mounting hole; 162. Mounting piece; 163. Through hole; 164. Screw; 165. Screw hole; 170. Sludge thickness detection mechanism; 171. Infrared sensor; 172. Vacuum tube; 173. Transparent window ; 174, desiccant holding tank; 175, connecting rod; 176, rotating cover; 177, slide block; 178, chute; 180, stirring mechanism; 181, motor; 182, rotating shaft; 183, paddle; Plate; 191, supporting part; 192, rotating part; 193, clamping block; 200, sludge cleaning box.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is described in detail.

A cleaning device for a coagulation tank of a desulfurization wastewater zero-discharge system, referring to FIG. 1 , includes a tank body 100, which is provided with a first partition 110 that is sealed and connected to the bottom and side walls of the tank body 100 and The second partition 120 separates the tank body 100 into a neutralization tank 130 , a reaction tank 140 and a flocculation tank 150 each equipped with a stirring mechanism 180 . In addition, both the neutralization box 130 and the reaction box 140 are connected with a partition plate connected to the top of the cell body 100 and facing the bottom of the cell body 100 . The first partition 110 is higher than the second partition 120 to facilitate the overflow of waste water.

One side of the neutralization tank 130 is provided with a waste water inlet pipe 131 , and the neutralization tank 130 , the reaction tank 140 and the flocculation tank 150 are all provided with chemical pipelines 132 . The waste water inlet pipe 131 is opposite to the stirring part of the stirring mechanism 180 . After the raw waste water enters the stirring mechanism 180 from the waste water inlet pipe 131, the stirring mechanism 180 is directly opposed to make the stirring of the raw waste water more uniform. Because in neutralization box 130, reaction box 140 and flocculation box 150, can produce sediment, when it can't be discharged completely, can pile up in the corner of neutralization box 130, reaction box 140 and flocculation box 150, Staff need to clean up regularly.

The bottoms of the neutralization box 130, the reaction box 140 and the flocculation box 150 are all communicated with the sludge cleaning box 200 through the mesh structure 160. After washing the neutralization box 130, the reaction box 140 and the flocculation box 150, open the corresponding mesh structure 160 , the sewage under flushing can be flushed into the sludge cleaning tank 200 for centralized treatment.

Referring to Fig. 2 and Fig. 3, the leaking screen structure 160 comprises the installation holes 161 provided in the sludge cleaning box 200 connected to the bottom of the neutralization box 130, the reaction box 140 and the flocculation box 150 respectively, and the installation parts 162 connected with the installation holes 161, The mounting part 162 is provided with a driving part on one side facing the pool body 100 , and the mounting part 162 is provided with a plurality of through holes 163 communicating with the sludge cleaning box 200 along its circumference. During the normal operation of the neutralization box 130, the reaction box 140 and the flocculation box 150, the installation part 162 is connected with the installation hole 161, so that the sludge cleaning box 200 is not connected with the neutralization box 130, the reaction box 140 and the flocculation box 150; When it is necessary to clean the sludge from the neutralization tank 130, the reaction tank 140 and the flocculation tank 150, the driving part drives the mounting part 162 to rotate, so that the through hole 163 exposes the bottom surface of the neutralization tank 130, the reaction tank 140 and the flocculation tank 150, so that the neutralization tank 130, the reaction tank 140 and the flocculation tank 150 can be exposed The sludge in the summing box 130, the reaction box 140 and the flocculation box 150 flows into the sludge cleaning box 200 through the through hole 163 for centralized treatment of the sludge.

The driving mechanism includes a screw 164 disposed on the stirring mechanism 180 , and the driving part includes a screw hole 165 connected to the screw 164 . The rotation of the mounting part 162 is driven by the power of the stirring mechanism 180 to achieve rational utilization of resources; at the same time, since the depth of the neutralization tank 130, the reaction tank 140 and the flocculation tank 150 are relatively deep, the mounting part 162 driven by the stirring mechanism 180 can be reached. The purpose is also convenient for workers to operate.

The stirring mechanism 180 includes a motor 181 installed on the top of the pool body 100 with the output shaft facing the bottom of the pool body 100, a rotating shaft 182 keyed to the motor 181, and a paddle 183 arranged on the rotating shaft 182. The screw rod 164 is integrally arranged on the The end of the rotating shaft 182 away from the motor 181 ; and the top of the pool body 100 is provided with a driving assembly for driving the motor 181 to move axially along its output shaft, and the driving part is located on the axial extension of the output shaft of the motor 181 . The top of the pool body 100 is rotatably connected with an operation panel 190. The operation panel 190 includes a support part 191 and a rotation part 192. The support part 191 and the rotation part 192 are arranged in an L shape, and one end of the support part 191 is in contact with the motor 181; the top of the pool body 100 A locking block 193 for locking the rotating part 192 is also provided.

When performing normal stirring work, the block 193 blocks the rotating part 192, so that the support part 191 is in a vertical state, so that the screw rod 164 connected to the rotating shaft 182 is separated from the screw hole 165, and now the paddle 183 is connected to its corresponding box. The liquid in the body is stirred, so that the waste water can be fully mixed with the medicament, and at the same time, the generated sediment can be prevented from accumulating at the bottom of the tank. When the sludge thickness detection mechanism 170 detects that the thickness of the sludge exceeds the set value, the staff turns the block 193 to disengage from the rotating part 192, so that the rotating part 192 can rotate, so that the supporting part 191 is placed horizontally , to support the motor 181 , and the motor 181 slowly moves down with the rotation of the supporting part 191 , so that the screw rod 164 contacts the screw hole 165 . Turn the motor 181 so that the mounting part 162 can move upwards under the rotation of the screw rod 164 , so that the through hole 163 is exposed from the bottom surface of the box body for the sludge to flow into the sludge cleaning box 200 . The waste liquid in the sludge cleaning tank 200 is processed by the sludge processor, the sludge is discharged, and the liquid is re-passed into the neutralization tank 130 to fully purify the waste water and save water resources.

With reference to Fig. 1 and Fig. 4, all be provided with sludge thickness detection mechanism 170 in neutralization box 130, reaction box 140 and flocculation box 150, sludge thickness detection mechanism 170 comprises the vacuum tube 172 that is connected with the top of tank body 100 by screw, A detection device arranged in the vacuum tube 172 and an adjustment assembly for adjusting the position of the detection device in the vacuum tube 172 . The vacuum tube 172 is provided with a transparent window 173. Preferably, in this embodiment, the vacuum tube 172 is a glass vacuum tube. The detection device is located at the transparent window 173 and can detect the sludge accumulation outside the transparent window 173 .

The adjustment assembly includes a connecting rod 175 that is threadedly connected to the rotary cover at the end of the vacuum tube 172. The connecting rod 175 is located at one end of the vacuum tube 172 and connected to the detection device; A guide mechanism slidingly connected with the connecting rod 175 is provided. The guiding mechanism includes a sliding slot 178 provided on the inner wall of the vacuum tube 172 along the axial direction of the vacuum tube 172 , and a slider 177 whose one end is fixedly connected to the connecting rod 175 and the other end is slidingly connected to the sliding slot 178 . When the rotary cover 176 is turned, the connecting rod 175 drives the detection device to move.

In this embodiment, the detection device includes an infrared sensor 171, and the emitting end of the infrared sensor 171 faces outward through the transparent window 173; and the infrared sensor 171 is connected to one end of the connecting rod 175, and is electrically connected to the alarm device. The alarm device can be an audible and visual alarm, and the audible and visual alarm is fixedly connected to the top of the pool body 100 .

Since the vacuum tube 172 is placed in the liquid, in order to avoid water vapor entering and affecting the performance of the infrared sensor 171, a desiccant holding tank 174 is provided at the bottom of the vacuum tube 172, where desiccant can be placed.

When the thickness of the sludge exceeds the position where the infrared sensor 171 is located, the infrared sensor 171 outputs a detection signal to the alarm device to remind the staff that the sludge has accumulated too much and can be cleaned up. When the staff sees or hears the acousto-optic alarm working, toggle the block 193 to lower the motor, and then drive the motor to rotate to move up the mounting part 162, so that the neutralization box 130, the reaction box 140 and the flocculation box 150 correspond to each other. After the box body is flushed, the sediment can be washed into the sludge cleaning box 200 for centralized treatment.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (9)

1. A cleaning device for a coagulation tank of a desulfurization wastewater zero-discharge system, the coagulation tank includes a pool body (100), and the pool body (100) includes a neutralization tank equipped with a stirring mechanism (180). Case (130), reaction case (140) and flocculation case (150), described neutralization case (130) one side is provided with waste water inlet pipe (131), and neutralization case (130), reaction case (140) and The flocculation box (150) is equipped with a medicament pipeline (132), and it is characterized in that the cleaning device includes a sludge cleaning box connected to the neutralization box (130), the reaction box (140) and the flocculation box (150); The neutralization box (130), the reaction box (140) and the flocculation box (150) are all provided with a sludge thickness detection mechanism (170), a leaking screen structure (160) connected with the sludge cleaning box (200), and a A driving mechanism for opening or closing the driving leakage net structure (160); The sludge thickness detection mechanism (170) includes a vacuum tube (172) connected to the tank body (100), a detection device arranged in the vacuum tube (172), and an adjustment for adjusting the position of the detection device in the vacuum tube (172). Assemblies, the vacuum tube (172) is provided with a transparent window (173), and the detection device is provided at the transparent window (173); An alarm device is arranged on the pool body (100), and the alarm device is electrically connected with the detection device. 2. The cleaning device according to claim 1, characterized in that, the adjustment assembly includes a connecting rod (175) that is threadedly connected with a rotary cover at the end of the vacuum tube (172), and the connecting rod (175) is positioned at the vacuum tube ( 172) one end inside is connected to the detection device; and the rotating cover (176) is axially connected with the vacuum tube (172) around the vacuum tube (172), and the vacuum tube (172) is provided with a sliding mechanism with the connecting rod (175). The guide mechanism for moving the connection. 3. The cleaning device according to claim 2, characterized in that, the guide mechanism comprises a chute (178) provided on the inner wall of the vacuum tube (172) along the axial direction of the vacuum tube (172), and one end connects with the connecting rod (175) ) is fixedly connected, and the other end is slidingly connected to the sliding block (177) of the chute (178). 4. The cleaning device according to claim 3, characterized in that, a desiccant containing tank (174) is provided at the bottom of the vacuum tube (172). 5. cleaning device according to claim 4, is characterized in that, described detection device comprises infrared sensor (171), and the transmitting end of described infrared sensor (171) is through transparent window (173) towards the outside; And infrared sensor (171) is connected to connecting rod (175) one end, and is electrically connected with warning device. 6. The cleaning device according to claim 5, characterized in that, the leaking net structure (160) includes connected sludge at the bottom of the neutralization tank (130), the reaction tank (140) and the flocculation tank (150) respectively. The installation hole (161) provided in the cleaning box (200), the installation piece (162) connected with the installation hole (161), the installation piece (162) is provided with a driving part on the side facing the pool body (100), The mounting part (162) is provided with a plurality of through holes (163) communicating with the sludge cleaning box (200) along its circumference. 7. The cleaning device according to claim 6, characterized in that, the driving mechanism comprises a screw (164) arranged on the stirring mechanism (180), and the driving part comprises a screw hole with the screw (164) (165). 8. The cleaning device according to claim 7, characterized in that, the stirring mechanism (180) comprises a motor (181) installed on the top of the pool body (100) with an output shaft facing the bottom of the pool body (100), and The rotating shaft (182) connected with the motor (181) and the paddle (183) arranged on the rotating shaft (182), the screw rod (164) is integrally arranged at the end of the rotating shaft (182) away from the motor (181) ; And the top of the pool body (100) is provided with a drive assembly for driving the motor (181) to move axially along its output shaft, and the drive part is located on the axial extension of the output shaft of the motor (181). 9. The cleaning device according to claim 8, characterized in that, an operating plate (190) is rotatably connected to the top of the pool body (100), and the operating plate (190) includes a support portion (191) and a rotating portion ( 192), the supporting part (191) and the rotating part (192) are arranged in an L shape, and one end of the supporting part (191) is in contact with the motor (181); the top of the pool body (100) is also provided with a The block (193) of (192).