Multifunctional integrated wastewater treatment equipment based on fine coal gasification slag and treatment method

Abstract

The invention discloses multifunctional integrated wastewater treatment equipment based on coal gasification fine slag and a treatment method.The multifunctional integrated wastewater treatment equipment comprises a sedimentation tank and further comprises a control assembly, a protection assembly and a slag filtering assembly, and the control assembly comprises a water inlet pipe, a water outlet, a feeding frame, a control rod, a control groove, a control panel, an elastic telescopic rod, a control panel, a feeding port and a filling port; the water inlet pipe is fixedly installed on the left side of the sedimentation tank, the water outlet is formed in the right side of the sedimentation tank, the feeding frame is fixedly installed on the top of the sedimentation tank, the control rod rotationally penetrates through the bottom of the feeding frame, the control groove is formed in the circumferential face of the control rod, and the control plate slidably penetrates through the left side of the feeding frame. The elastic telescopic rod is fixedly mounted on the circumferential surface of the water inlet pipe, and the feeding port cannot be sealed by the control plate, so that a flocculating agent in the feeding frame is continuously discharged into the sedimentation tank; the device has the characteristic that the feeding amount of the flocculating agent can be controlled according to the water inlet amount of the wastewater.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a multifunctional integrated sewage treatment device and method based on fine slag of coal gasification. Background Technique

[0002] The discharge of industrial wastewater and domestic sewage causes extremely serious environmental pollution, and chromaticity is an important index for sewage discharge. The chromaticity of sewage is often related to the contained chromogenic organic substances and non-ferrous metal ions. In the process of coal chemical production, these organic substances will dissolve or decompose into sewage, resulting in the sewage showing color. In addition, the composition of raw coal pyrolysis wastewater is complex, and high-concentration organic substances such as phenols and benzene series substances. The unsaturated bonds and conjugated systems in their molecular structures will absorb light of specific wavelengths, thus showing chromaticity. Therefore, the treatment of sewage chromaticity has become an important direction in sewage treatment research.

[0003] The patent with the patent announcement number CN214032000U relates to a device for removing hardness from coal gasification wastewater, including a coal gasification wastewater buffer tank, a coal gasification wastewater lift pump, a dosing device, a reaction tank device, a precipitation device, and a precision filtration device connected in sequence through pipelines. This patent reduces the hardness in the coal gasification wastewater by setting a reaction tank device, performs mud-water separation in the precipitation device, and filters the coal gasification wastewater after mud-water separation. This patent better reduces the hardness in the coal gasification wastewater, solves problems such as scaling and blockage of subsequent ammonia-containing wastewater recovery and ammonia water production systems and pipelines, ensures the long-term stable operation of the subsequent ammonia-containing wastewater recovery and ammonia water production systems, reduces the maintenance frequency of equipment and pipelines, and reduces maintenance costs.

[0004] In the above patent, by performing mud-water separation in the precipitation device and filtering the coal gasification wastewater after mud-water separation, the hardness in the coal gasification wastewater is better reduced. However, it is difficult to perform adsorption and decolorization treatment on the wastewater, and it is difficult to control the dosage of the flocculant according to the influent volume of the wastewater. When the influent volume increases and the dosage is insufficient, the suspended solids in the wastewater cannot fully form flocs. When the influent volume decreases and the dosage is excessive, the excess flocculant will redissolve into colloids, thereby introducing new chemical pollution, resulting in poor treatment effect in the sedimentation tank. Therefore, it is very necessary to design a multifunctional integrated sewage treatment device based on fine slag of coal gasification with strong practicability and capable of controlling the dosage of the flocculant according to the influent volume of the wastewater. Summary of the Invention

[0005] The purpose of the present invention is to provide a multifunctional integrated sewage treatment device and method based on fine slag of coal gasification to solve the problems raised in the above background technique.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a multifunctional integrated wastewater treatment equipment based on coal gasification fine slag, comprising a sedimentation tank, and also comprising a control component, a protection component and a filter residue component, wherein the control component comprises an inlet pipe, a water outlet, a feeding frame, a joystick, a joystick slot, a joystick panel, an elastic telescopic rod, a control panel, a feeding port and a filling port, wherein the inlet pipe is fixedly installed on the left side of the sedimentation tank, the water outlet is opened on the right side of the sedimentation tank, the feeding frame is fixedly installed on the top of the sedimentation tank, the joystick rotates through the bottom of the feeding frame, the joystick slot is opened on the circumferential surface of the joystick, the joystick slides through the left side of the feeding frame, the elastic telescopic rod is fixedly installed on the circumferential surface of the water inlet pipe, the fixed end of the elastic telescopic rod is connected to the inside of the water inlet pipe, the control panel is fixedly installed on the circumferential surface of the joystick, the feeding port is opened at the bottom of the feeding frame, the filling port is opened on the left side of the feeding frame, and the inner wall of the feeding frame is provided with a flocculant, and the feeding port cannot be sealed by the control panel so that the flocculant inside the feeding frame is continuously discharged into the sedimentation tank.

[0007] According to the above technical solution, an O-ring is arranged between the joystick and the feeding frame, and the sealing effect between the joystick and the feeding frame can be improved by the O-ring. The left side of the joystick is set as an inclined surface, and a water stop ring is arranged between the joystick and the feeding frame, and the sealing effect between the joystick and the feeding frame can be improved by the water stop ring. A fence is fixedly installed on the top of the sedimentation tank, and the right side of the joystick is set as an arc surface.

[0008] According to the above technical solution, the control plate is in contact with the bottom of the inner wall of the feeding frame, the elastic telescopic rod is in contact with the bottom left side of the operating plate, a spring 1 is arranged between the operating plate and the feeding frame, the operating plate moves to the right and applies a pulling force to the spring 1, the spring 1 is deformed and accumulates force due to the pulling of the operating plate, after the operating plate is separated from the contact with the free end of the elastic telescopic rod, the operating plate can be driven by the spring 1 to restore to its initial position, and a gear 1 is fixedly installed on the circumferential surface of the operating rod.

[0009] According to the above technical solution, the protection component is used to prevent the coal gasification fine slag at the bottom of the sedimentation tank from being lifted up by excessive scouring of wastewater, and the filter residue component is used to salvage sand and gravel in the sewage. The protection component includes a protection rod, a protection hole and a dividing plate. The protection rod is rotatably installed at the bottom of the inner wall of the sedimentation tank, the protection hole is opened at the top of the protection rod, and the dividing plate is fixedly installed on the circumferential surface of the protection rod. The dividing plate rotates counterclockwise to prevent impact and shield the wastewater entering the sedimentation tank.

[0010] According to the above technical solution, the protective component also includes gear 2, a material dividing hole and a curved plate. Gear 2 is fixedly installed on the circumferential surface of the protective rod, the material dividing hole is opened on the front side of the material dividing plate, and the curved plate is fixedly installed on the left side of the partition. The material dividing plate rotates counterclockwise and collides and vibrates with the curved plate.

[0011] According to the above technical solution, the second gear meshes with the first gear. The curved panel is elastic and is internally connected to the protective rod. The flocculant rotates counterclockwise and is thrown into the sedimentation tank through the material distribution holes under the action of centrifugal force.

[0012] According to the above technical solution, the filter residue assembly includes a baffle plate, a filter residue plate, and a connecting plate. The baffle plate is fixedly installed on the inner wall of the water inlet pipe. The filter residue plate is slidably installed on the inner wall of the water inlet pipe. The connecting plate is fixedly installed on the right side of the filter residue plate. The filter residue plate moves back and forth to salvage the sand and gravel in the wastewater.

[0013] According to the above technical solution, the filter residue assembly further includes a baffle spring, a connecting groove, and a connecting rod. The baffle spring is arranged between the baffle plate and the filter residue plate. The connecting rod plate drives the filter residue plate to move synchronously, causing the baffle spring to generate an axial compression deformation and store elastic potential energy. After the distribution plate disengages from the contact with the connecting plate, the baffle spring can drive the filter residue plate to reset. The connecting groove is opened on the inner wall of the water inlet pipe. The connecting rod is fixedly installed at the bottom of the connecting plate. The connecting rod contacts the inner wall of the connecting groove. The right side of the connecting plate is an arc surface. The connecting rod continuously contacts the inner wall of the connecting groove and provides a supporting force for the connecting plate and the connecting plate.

[0014] A treatment method for a multi-functional integrated wastewater treatment device based on coal gasification fine slag, using the above-mentioned multi-functional integrated wastewater treatment device based on coal gasification fine slag, includes the following steps: Step 1: Discharge the wastewater into the sedimentation tank through the water inlet pipe, and at the same time, put solid waste coal gasification fine slag into the sedimentation tank for decolorization. Step 2: Start the AC motor to drive the control rod to rotate clockwise. The clockwise rotation of the control rod drives the control plate to rotate. The rotation of the control plate disengages from the contact with the feeding port and releases the seal of the feeding frame. Step 3: After the seal of the feeding frame is released, the flocculant inside the feeding frame drains into the sedimentation tank through the feeding port under the action of its own gravity and is mixed with the wastewater. Step 4: After the coal gasification fine slag removes the color of the wastewater and at the same time achieves the multi-functional integrated treatment effect of removing organic pollutants in the wastewater, the treated wastewater is discharged through the water outlet.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) In this invention, by adding solid waste gasification fine slag into the sedimentation tank for decolorization, compared with the expensive chemical agents or complex treatment equipment used in traditional decolorization methods, the gasification fine slag, as a relatively cheap and easily available material, can significantly reduce the cost of decolorization treatment. By controlling the circumferential movement of the control board to intermittently block the feeding port, the function of intermittently adding flocculant is achieved. Intermittently adding flocculant can avoid insufficient flocculation reaction caused by too long dosing interval. The control lever is restricted by the control board and cannot rotate further, thus achieving the effect of controlling the dosage of flocculant according to the influent volume of wastewater. By synchronously adjusting the dosage of flocculant according to the influent volume of wastewater, it can avoid insufficient flocculant caused by sudden increase in water volume or excess flocculant when the water volume decreases, thereby ensuring the stability of the wastewater treatment effect of the sedimentation tank.

[0016] (2) In this invention, the gasification fine slag originally regarded as waste is transformed into a valuable sewage treatment material, realizing the resource utilization of solid waste, reducing the environmental pressure, and during the process of using gasification fine slag for decolorization treatment, the use of chemical agents is reduced, and the risk of secondary pollution is lowered, which conforms to the concept of green environmental protection.

[0017] (3) In this invention, by the counterclockwise rotation of the distribution plate to prevent the impact of the wastewater entering the sedimentation tank, it is ensured that the gasification fine slag inside the sedimentation tank will not be lifted up by excessive scouring of the wastewater. By reducing the disturbance of the fine slag layer caused by wastewater impact, it can ensure sufficient contact between the gasification fine slag and the pigment molecules in the wastewater, and avoid the decrease in adsorption efficiency caused by the suspension of fine slag.

[0018] (4) In this invention, by the counterclockwise rotation of the distribution plate to drive the flocculant inside the distribution plate to rotate, the flocculant rotates counterclockwise and is thrown into the sedimentation tank through the distribution holes under the action of centrifugal force, so that the flocculant is evenly distributed inside the sedimentation tank. Centrifugal throwing makes the contact area between the flocculant and the wastewater larger, and the flocculant can quickly diffuse in the sedimentation tank, greatly shortening the reaction time between the flocculant and pollutants.

[0019] (5) In this invention, through the collision and vibration between the counterclockwise rotation of the distribution plate and the curved panel, the distribution holes can remain unobstructed, ensuring that the flocculant in the distribution plate is evenly dispersed through the distribution holes, reducing the uneven drug distribution caused by blockage of sedimentation, thereby avoiding local flocculant concentration imbalance and making the flocs in the wastewater form more fully.

[0020] (6) In this invention, the filter residue plate moves back and forth to salvage the sand and gravel in the wastewater. By intercepting the sand and gravel in advance, it can avoid their entry into the sedimentation tank to interfere with the adsorption reaction of the gasification fine slag, and reduce the maintenance cost and extend the service life of the equipment.

[0021] (7) In the present invention, the connecting rod continuously contacts the inner wall of the connecting groove and provides a supporting force for the connecting plates, and the auxiliary support provided by the connecting rod can prevent the filter residue plate from being displaced or deformed due to excessive impact force during the reciprocating movement, thereby avoiding problems such as failure of salvage and ensuring that the sewage treatment effect meets the standard. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the sedimentation tank of the present invention; Figure 3 is a schematic diagram of the semi-sectional structure of the feeding frame of the present invention; Figure 4 is a schematic diagram of the semi-sectional structure of the water inlet pipe of the present invention; Figure 5 is a schematic diagram of the position structure of the water inlet pipe and the shielding plate of the present invention; Figure 6 is a schematic diagram of the internal structure of the feeding frame of the present invention; Figure 7 is a schematic diagram of the position structure of the feeding frame and the control board of the present invention.

[0023] In the figure: 1, sedimentation tank; 2, fence; 3, partition; 4, water inlet pipe; 5, water outlet; 6, feeding frame; 7, control rod; 8, control groove; 9, control board; 10, elastic telescopic rod; 11, control board; 12, feeding port; 13, filling port; 14, first gear; 151, protective rod; 152, protective hole; 153, distributing plate; 154, second gear; 155, distributing hole; 156, curved panel; 161, shielding plate; 162, filter residue plate; 163, connecting plate; 164, shielding spring; 165, connecting groove; 166, connecting rod. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1:

[0025] Please refer to Figures 1-7, the present invention provides a technical solution: a multifunctional integrated wastewater treatment device based on gasification fine slag, including a sedimentation tank 1, and further including a control component, a protection component and a slag filtering component. The control component includes a water inlet pipe 4, a water outlet 5, a feeding frame 6, a control lever 7, a control groove 8, a control plate 9, an elastic telescopic rod 10, a control board 11, a feeding port 12 and a filling port 13. The water inlet pipe 4 is fixedly installed on the left side of the sedimentation tank 1, the water outlet 5 is opened on the right side of the sedimentation tank 1, the feeding frame 6 is fixedly installed on the top of the sedimentation tank 1, the control lever 7 rotates through the bottom of the feeding frame 6, the control groove 8 is opened on the circumferential surface of the control lever 7, the control plate 9 slides through the left side of the feeding frame 6, the elastic telescopic rod 10 is fixedly installed on the circumferential surface of the water inlet pipe 4, the fixed end of the elastic telescopic rod 10 is internally communicated with the water inlet pipe 4, the control board 11 is fixedly installed on the circumferential surface of the control lever 7, the feeding port 12 is opened at the bottom of the feeding frame 6, the filling port 13 is opened on the left side of the feeding frame 6, and a flocculant is arranged on the inner wall of the feeding frame 6. As a relatively cheap and easily available material, gasification fine slag can significantly reduce the cost of decolorization treatment. By synchronously adjusting the dosage of the flocculant according to the water inflow of the wastewater, it is possible to avoid insufficient flocculant due to sudden increase in water volume or excess flocculant when the water volume decreases, thereby ensuring the stability of the wastewater treatment effect of the sedimentation tank 1.

[0026] An O-ring is arranged between the control lever 7 and the feeding frame 6, and the sealing effect between the control lever 7 and the feeding frame 6 can be improved through the O-ring. The left side of the control plate 9 is set as an inclined surface, and a water stop ring is arranged between the control plate 9 and the feeding frame 6. The sealing effect between the control plate 9 and the feeding frame 6 can be improved through the water stop ring. A fence 2 is fixedly installed on the top of the sedimentation tank 1, the right side of the control plate 9 is set as an arc surface. The gasification fine slag, which was originally regarded as waste, is transformed into a valuable sewage treatment material, realizing the resource utilization of solid waste. And during the process of using gasification fine slag for decolorization treatment, the use of chemical agents is reduced.

[0027] The control board 11 abuts against the bottom of the inner wall of the feeding frame 6, the elastic telescopic rod 10 contacts the bottom of the left side of the control plate 9. A first spring is arranged between the control plate 9 and the feeding frame 6. When the control plate 9 moves to the right, a pulling force is applied to the first spring. The first spring deforms and stores energy under the pulling of the control plate 9. After the control plate 9 is separated from the free end of the elastic telescopic rod 10, the control plate 9 can be driven to return to the initial position through the first spring. A first gear 14 is fixedly installed on the circumferential surface of the control lever 7. Intermittent feeding of the flocculant can avoid insufficient flocculation reaction due to too long dosing interval.

[0028] A treatment method for a multifunctional integrated wastewater treatment device based on gasification fine slag, using the above-mentioned multifunctional integrated wastewater treatment device based on gasification fine slag, includes the following steps: Step 1: Discharge the wastewater into the sedimentation tank 1 through the water inlet pipe 4, and at the same time, put the solid waste gasification fine slag into the sedimentation tank 1 for decolorization; Step 2: Start the AC motor to drive the joystick 7 to rotate clockwise, the joystick 7 rotates clockwise to drive the control board 11 to rotate, the control board 11 rotates out of contact with the feeding port 12 and releases the seal of the feeding frame 6; Step 3: After the seal of the feeding frame 6 is released, the flocculant inside the feeding frame 6 is discharged into the sedimentation tank 1 through the feeding port 12 under the action of its own gravity and mixed with the wastewater; Step 4: After the coal gasification fine slag removes the wastewater color and removes the organic pollutants in the wastewater and other multifunctional integrated treatment effects, the treated wastewater is discharged through the outlet 5.

[0029] The wastewater adopts "coagulation flotation + hydrolysis acidification" as the pretreatment process, the biochemical system process flow is HBF, and the deep treatment is "Fenton reaction + Fenton precipitation". 0.06% of the gasified fine slag is adsorbed in the Fenton tank, and then 0.01% PAC and 0.0005% PAM are added. After sedimentation, the sludge after sedimentation is dehydrated by a screw stack sludge dewatering machine.

[0030] During operation, wastewater is discharged into the sedimentation tank 1 through the water inlet pipe 4, and solid waste coal gasification fine slag is put into the sedimentation tank 1 for decolorization. An AC motor is arranged on the top of the feeding frame 6, and its output end is fixed to the joystick 7. The AC motor is started to drive the joystick 7 to rotate clockwise, and the joystick 7 rotates clockwise to drive the control board 11 to rotate. The control board 11 rotates out of contact with the feeding port 12 and releases the seal of the feeding frame 6. After the seal of the feeding frame 6 is released, the flocculant in the feeding frame 6 is discharged into the feeding port 12 under the action of its own gravity. The wastewater is mixed with the wastewater in the sedimentation tank 1, and the AC motor continues to drive the joystick 7 to rotate, and the joystick 7 continues to rotate to drive the control panel 11 to continue to rotate, and the control panel 11 continues to rotate to restore to the initial position and contact the feeding port 12 and block the feeding port 12. The control panel 11 intermittently blocks the feeding port 12 in a circular motion to achieve the effect of intermittently adding flocculants. After the wastewater continues to enter the sedimentation tank 1 and submerges the water inlet pipe 4, the wastewater in the water inlet pipe 4 enters the elastic telescopic rod 10 under the action of its own water pressure, and enters the elastic telescopic rod 10. The wastewater inside the retractable rod 10 squeezes the free end of the elastic telescopic rod 10, and the free end of the elastic telescopic rod 10 is squeezed by the wastewater inside the water inlet pipe 4 and moves upward. The free end of the elastic telescopic rod 10 moves upward and contacts the inclined surface of the control plate 9 and squeezes the control plate 9. The control plate 9 is squeezed to the right by the free end of the elastic telescopic rod 10, and the control plate 9 moves to the right and contacts the control rod 7. When the control rod 7 continues to rotate so that the control slot 8 is aligned with the control plate 9, the control plate 9 moves to the right and contacts the inner wall of the control slot 8 and contacts the control rod 7. The rod 7 is limited, and the joystick 7 is limited by the joystick 9 and cannot continue to rotate. The joystick 7 cannot continue to rotate, so that the control panel 11 cannot rotate to restore the shielding and sealing of the feeding port 12. The feeding port 12 cannot be sealed by the control panel 11, so that the flocculant inside the feeding frame 6 is continuously discharged into the sedimentation tank 1, thereby achieving the effect of controlling the amount of flocculant added according to the wastewater inlet volume, and after the multifunctional integrated treatment effect such as removing the color of the wastewater by the gasification fine slag and removing the organic pollutants in the wastewater is achieved, the treated wastewater is discharged through the outlet 5. Embodiment 2:

[0031] See also Figures 1-7 On the basis of the first embodiment, in this embodiment, the protection component is used to prevent the coal gasification fine slag at the bottom of the sedimentation tank 1 from being lifted up by excessive scouring of wastewater, and the filter residue component is used to salvage sand and gravel in the sewage. The protection component includes a protection rod 151, a protection hole 152 and a dividing plate 153. The protection rod 151 is rotatably installed at the bottom of the inner wall of the sedimentation tank 1, the protection hole 152 is opened at the top of the protection rod 151, and the dividing plate 153 is fixedly installed on the circumferential surface of the protection rod 151. By reducing the disturbance of the coal gasification fine slag layer by the impact of wastewater, it can ensure that the coal gasification fine slag is fully in contact with the pigment molecules in the wastewater, thereby avoiding the decrease in adsorption efficiency due to the suspension of the coal gasification fine slag.

[0032] The protection component further includes a second gear 154, a material distribution hole 155, and a curved panel 156. The second gear 154 is fixedly installed on the circumferential surface of the protection rod 151. The material distribution hole 155 is opened on the front side of the material distribution plate 153. The curved panel 156 is fixedly installed on the left side of the partition plate 3. When the material distribution plate 153 rotates counterclockwise and collides with the curved panel 156, vibration occurs, and the material distribution hole 155 can remain unobstructed, ensuring that the flocculant in the material distribution plate 153 is evenly dispersed through the material distribution hole 155.

[0033] The second gear 154 meshes with the first gear 14. The curved panel 156 is elastic and is internally connected to the protection rod 151. The flocculant rotates counterclockwise and is thrown into the sedimentation tank 1 through the material distribution hole 155 under the action of centrifugal force. The centrifugal throwing makes the contact area between the flocculant and the wastewater larger, enabling the flocculant to quickly spread in the sedimentation tank 1 and significantly shortening the reaction time between the flocculant and the pollutants.

[0034] The filter residue component includes a shielding plate 161, a filter residue plate 162, and a connecting plate 163. The shielding plate 161 is fixedly installed on the inner wall of the water inlet pipe 4. The filter residue plate 162 is slidably installed on the inner wall of the water inlet pipe 4. The connecting plate 163 is fixedly installed on the right side of the filter residue plate 162. By intercepting sand and gravel in advance, it is prevented from entering the sedimentation tank 1 to interfere with the adsorption reaction of the fine slag from coal gasification, and the maintenance cost is reduced, and the service life of the equipment is extended.

[0035] The filter residue component further includes a shielding spring 164, a connecting groove 165, and a connecting rod 166. The shielding spring 164 is arranged between the shielding plate 161 and the filter residue plate 162. The connecting rod plate 163 drives the filter residue plate 162 to move synchronously, causing the shielding spring 164 to generate an axial compression deformation and store elastic potential energy. After the material distribution plate 153 disengages from the contact with the connecting plate 163, the filter residue plate 162 can be driven to reset by the shielding spring 164. The connecting groove 165 is opened on the inner wall of the water inlet pipe 4. The connecting rod 166 is fixedly installed at the bottom of the connecting plate 163. The connecting rod 166 contacts the inner wall of the connecting groove 165. The right side of the connecting plate 163 is set as an arc surface. The connecting rod 166 continuously contacts the inner wall of the connecting groove 165 and provides a supporting force for the connecting plate 163 and the connecting plate 162. The auxiliary support provided by the connecting rod 166 can prevent the filter residue plate 162 from being displaced or deformed due to excessive collision forces during the reciprocating movement, thereby avoiding problems such as the failure of salvage and ensuring that the sewage treatment effect meets the standards.

[0036] During operation, when the joystick 7 rotates clockwise, it drives the first gear 14 to rotate clockwise. The clockwise rotation of the first gear 14 drives the second gear 154 to rotate counterclockwise. The counterclockwise rotation of the second gear 154 drives the protective rod 151 to rotate counterclockwise. The counterclockwise rotation of the protective rod 151 drives the baffle plate 153 to rotate counterclockwise. The counterclockwise rotation of the baffle plate 153 shields the wastewater entering the sedimentation tank 1 from impact, thereby ensuring that the fine slag of coal gasification in the sedimentation tank 1 will not be overwashed by the wastewater and lifted. At the same time, the flocculant in the feeding frame 6 enters the sedimentation tank 1 through the feeding port 12. Part of the flocculant falls into the interior of the protective rod 151 through the protective holes 152 under the action of its own gravity. The flocculant entering the interior of the protective rod 151 enters the interior of the baffle plate 153 through the distribution holes 155. At the same time, the counterclockwise rotation of the protective rod 151 drives the baffle plate 153 to rotate counterclockwise. The counterclockwise rotation of the baffle plate 153 drives the flocculant inside the baffle plate 153 to rotate. The counterclockwise rotation of the flocculant is thrown into the sedimentation tank 1 through the distribution holes 155 under the action of centrifugal force, so that the flocculant is evenly distributed inside the sedimentation tank 1. At the same time, through the collision and vibration of the counterclockwise rotation of the baffle plate 153 and the curved panel 156, the distribution holes 155 can remain unblocked, ensuring that the flocculant in the baffle plate 153 is evenly dispersed through the distribution holes 155, and avoiding the problem of uneven drug distribution caused by blockage of sedimentation products.

[0037] The baffle plate 153 rotates counterclockwise. Its working surface contacts the arc surface of the connecting plate 163 and generates an extrusion force. This extrusion force drives the connecting plate 163 to displace horizontally to the left. After the baffle plate 153 continues to rotate counterclockwise and disengages from the contact with the connecting plate 163, the filter residue plate 162 moves to the right under the elastic force of the retaining spring 164 to return to its initial position. The reciprocating movement of the filter residue plate 162 salvages the sand and gravel in the wastewater. At the same time, the reciprocating movement of the connecting plate 163 drives the connecting rod 166 to reciprocate. The connecting rod 166 reciprocates and continuously contacts the inner wall of the connecting groove 165. The continuous contact of the connecting rod 166 with the inner wall of the connecting groove 165 provides a supporting force for the connecting plate 163 and the connecting plate 162.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-functional integrated wastewater treatment device based on gasification fine slag, comprising a sedimentation tank (1), characterized in that: It also includes a control component, a protection component and a slag filtering component. The control component includes a water inlet pipe (4), a water outlet (5), a feeding frame (6), a joystick (7), a control groove (8), a control plate (9), an elastic telescopic rod (10), a control board (11), a feeding port (12) and a filling port (13). The water inlet pipe (4) is fixedly installed on the left side of the sedimentation tank (1), the water outlet (5) is opened on the right side of the sedimentation tank (1), the feeding frame (6) is fixedly installed on the top of the sedimentation tank (1), the joystick (7) rotatably penetrates through the bottom of the feeding frame (6), the control groove (8) is opened on the circumferential surface of the joystick (7), the control plate (9) slidably penetrates through the left side of the feeding frame (6), the elastic telescopic rod (10) is fixedly installed on the circumferential surface of the water inlet pipe (4), the fixed end of the elastic telescopic rod (10) is internally communicated with the water inlet pipe (4), the control board (11) is fixedly installed on the circumferential surface of the joystick (7), the feeding port (12) is opened at the bottom of the feeding frame (6), the filling port (13) is opened on the left side of the feeding frame (6), and a flocculant is arranged on the inner wall of the feeding frame (6). The protection component is used to prevent the gasification fine slag at the bottom of the sedimentation tank (1) from being lifted by excessive scouring of the waste water, and the slag filtering component is used to salvage the sand and gravel in the sewage.

2. The wastewater multi-functional integrated treatment device based on coal gasification fine slag according to claim 1, wherein: An O-ring is arranged between the joystick (7) and the feeding frame (6). The left side of the control plate (9) is set as an inclined surface. A water stop ring is arranged between the control plate (9) and the feeding frame (6). A fence (2) is fixedly installed on the top of the sedimentation tank (1). The right side of the control plate (9) is set as an arc surface.

3. The wastewater multi-functional integrated treatment device based on coal gasification fine slag according to claim 2, characterized in that: The control board (11) abuts against the bottom of the inner wall of the feeding frame (6). The elastic telescopic rod (10) contacts the bottom left side of the control plate (9). A first spring is arranged between the control plate (9) and the feeding frame (6). A first gear (14) is fixedly installed on the circumferential surface of the joystick (7).

4. The wastewater multi-functional integrated treatment device based on gasification fine slag according to claim 3, characterized in that: The protection component includes a protection rod (151), a protection hole (152) and a distribution plate (153). The protection rod (151) is rotatably installed at the bottom of the inner wall of the sedimentation tank (1). The protection hole (152) is opened at the top of the protection rod (151). The distribution plate (153) is fixedly installed on the circumferential surface of the protection rod (151).

5. The wastewater multi-functional integrated treatment equipment based on coal gasification fine slag according to claim 4, wherein: The protection component further includes a second gear (154), a distribution hole (155) and a curved panel (156). The second gear (154) is fixedly installed on the circumferential surface of the protection rod (151). The distribution hole (155) is opened at the front side of the distribution plate (153). The curved panel (156) is fixedly installed on the left side of the partition plate (3).

6. The wastewater multi-functional integrated treatment device based on gasification fine slag according to claim 5, wherein: The second gear (154) meshes with the first gear (14). The curved panel (156) is elastic and the curved panel (156) is internally communicated with the protection rod (151).

7. The wastewater multi-functional integrated treatment equipment based on gasification fine slag according to claim 6, characterized in that: The filter residue assembly includes a shielding plate (161), a filter residue plate (162) and a connecting plate (163). The shielding plate (161) is fixedly installed on the inner wall of the water inlet pipe (4). The filter residue plate (162) is slidably installed on the inner wall of the water inlet pipe (4). The connecting plate (163) is fixedly installed on the right side of the filter residue plate (162).

8. The multifunctional integrated wastewater treatment equipment based on gasification fine slag according to claim 7, characterized in that: The filter residue assembly further includes a shielding spring (164), a connecting groove (165) and a connecting rod (166). The shielding spring (164) is arranged between the shielding plate (161) and the filter residue plate (162). The connecting groove (165) is formed on the inner wall of the water inlet pipe (4). The connecting rod (166) is fixedly installed at the bottom of the connecting plate (163). The connecting rod (166) is in contact with the inner wall of the connecting groove (165). The right side of the connecting plate (163) is set as an arc surface.

9. A treatment method for a wastewater multi-functional integrated treatment device based on gasification fine slag, using a wastewater multi-functional integrated treatment device based on gasification fine slag described in claim 8, characterized in that, It includes the following steps: Step 1: Discharge the wastewater into the sedimentation tank (1) through the water inlet pipe (4), and at the same time put solid waste gasification fine slag into the sedimentation tank (1) for decolorization. Step 2: Start the AC motor to drive the control rod (7) to rotate clockwise. The clockwise rotation of the control rod (7) drives the control plate (11) to rotate. The control plate (11) rotates away from the contact with the feeding port (12) and releases the sealing of the feeding frame (6). Step 3: After the sealing of the feeding frame (6) is released, the flocculant inside the feeding frame (6) is discharged into the sedimentation tank (1) through the feeding port (12) under the action of its own gravity and is mixed with the wastewater. Step 4: After the gasification fine slag removes the chroma of the wastewater and at the same time achieves the multi-functional integrated treatment effect of removing organic pollutants in the wastewater, discharge the treated wastewater through the water outlet (5).

Images