Municipal cyanide-containing industrial wastewater treatment process and treatment device

Abstract

The invention relates to the field of wastewater chemical treatment, in particular to a municipal cyanide-containing industrial wastewater treatment process and a municipal cyanide-containing industrial wastewater treatment device.The municipal cyanide-containing industrial wastewater treatment process comprises the following steps that S1, large-particle impurities in industrial wastewater are preliminarily filtered in cooperation with a settling and filtering device; s2, guiding the filtered wastewater into a purifying and filtering device, and performing fine filtering treatment on the wastewater; s3, pouring polyaluminum chloride and hydrogen peroxide into the filtered wastewater, and neutralizing the cyanide wastewater in the cyanide wastewater by using the hydrogen peroxide as an oxidizing agent. Purified industrial wastewater is poured into the wastewater filtering device through a sewage flow guide pipe, and meanwhile, the wastewater poured out of the sewage flow guide pipe is blocked through cooperation with a water blocking splash-proof plate, so that the water blocking splash-proof plate is used for blocking an impacted water source and changing the flowing direction; and meanwhile, the surface of the filter plate is impacted in cooperation with a rapidly flowing water source, and the effect of impacting blocked impurities is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater chemical treatment, in particular to a municipal cyanide-containing industrial wastewater treatment process and a treatment device. Background Art

[0002] Cyanide is an inorganic compound composed of two elements, carbon and nitrogen, with the chemical formula (CN)2 and the structural formula N≡CC≡N. Under standard conditions, it is a colorless gas with a bitter almond smell. It burns with a purple-red flame with a slightly blue edge. Cyanide is a linear molecule with a carbon-nitrogen triple bond length of 115pm and a carbon-carbon single bond length of 138pm. Its chemical properties are similar to those of halogens, so it is called a pseudohalogen. Its chemical activity is after chlorine and before bromine. It is soluble in water, ethanol and ether, and polymerizes into an insoluble white solid when heated to above 400°C. It is mainly used as a fumigant and raw material for organic synthesis.

[0003] A patent with the announcement number CN106348426A discloses a method for treating cyanide-containing industrial wastewater, wherein sodium hypochlorite is used to oxidize cyanide ions into non-toxic and harmless carbon dioxide and nitrogen, and the weight of the required sodium hypochlorite is calculated according to the cyanide ion concentration in the wastewater; sodium hypochlorite is prepared into a 10% aqueous solution and added to the cyanide-containing wastewater, stirred and reacted at 20-35°C for 4-5 hours, and HPLC is used for detection. When the cyanide ion concentration does not exceed 5ppm, it is discharged into a wastewater treatment pool and treated according to a general wastewater treatment process. When the cyanide concentration in the wastewater does not exceed 0.1ppm, it can be directly discharged. The present invention not only has simple process operation, but also does not generate new pollution after treatment, solves the problem of incomplete treatment of cyanide-containing wastewater in the original method, and significantly improves the treatment efficiency. The cyanide ion concentration of the cyanide-containing wastewater treated by the present invention does not exceed 5ppm, and is very suitable for industrial implementation.

[0004] When treating existing wastewater, chemical agents are used to chemically precipitate and separate the solid impurities in the wastewater. However, this method can only settle the sediment and sludge impurities in the wastewater. However, municipal wastewater also contains a large amount of industrial chemicals and some residual solid impurities. These water sources containing chemicals still pose a great threat to the environment after being discharged. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem that the existing wastewater purification devices in the prior art can only preliminarily perform sedimentation treatment on the sediment and sludge impurities in the wastewater, but cannot chemically neutralize the industrial chemicals in the wastewater. After these water sources containing chemical agents are discharged, they still pose a great threat to the environment.

[0006] In the first aspect, in order to solve the above technical problems, the present invention provides a municipal cyanide-containing industrial wastewater treatment process, comprising the following steps:

[0007] S1. Use sedimentation filtration device to initially filter out large particles of impurities in industrial wastewater;

[0008] S2, the filtered wastewater is directed into the purification and filtration device, and then the wastewater is finely filtered;

[0009] S3. When the chemical precipitator is effectively and fully mixed with the wastewater in the water collection cavity, the alkaline liquid contained in the chemical precipitator is used to increase the alkalinity of the wastewater. At the same time, a chlorine-based oxidant is injected into the water collection cavity. The chlorine-based oxidant, such as chlorine gas, bleaching powder or sodium hypochlorite, oxidizes the cyanide in the wastewater into cyanate. After the cyanide is oxidized into cyanate in the first stage, the cyanate is further oxidized and decomposed into carbon dioxide and water in the second stage. The carbon dioxide generated in the water collection cavity is then extracted and discharged by a blower. At the same time, the remaining water source is circulated and extracted for secondary recycling.

[0010] S4. The condensed wastewater is extracted through the extraction device, and the wastewater is compacted with the compaction device, so that the water source in the wastewater is compacted out, and the settled impurities in the wastewater are compacted out.

[0011] The second aspect is a municipal cyanide-containing industrial wastewater treatment device, comprising a wastewater filter device and a limiting collar fixedly connected to the outer surface of the wastewater filter device, a drain pipe fixedly installed on one side surface of the wastewater filter device and located at the bottom edge position, and a rectangular slider movably sleeved on the inner wall surface of one side of the wastewater filter device, a filter slope is fixedly connected to the inner wall surface of the wastewater filter device, a water-retaining splash plate is fixedly connected to the inner wall surface of the wastewater filter device and located at the top edge position of the filter slope, a sewage diversion pipe is fixedly installed on one side surface of the wastewater filter device and located at the top edge position of the drain pipe and the filter slope, and the A water collecting cavity is arranged in the cavity between the filtering slope and the wastewater filtering device; there are three groups of the limiting rings, and the inner wall surfaces of the three groups of the limiting rings are movably sleeved with transmission rods and transmission blades respectively, and the position of the transmission blades is arranged at the top edge position of the filtering slope, the outer surface of the transmission blades is arranged at the water outlet of the sewage diversion pipe, and the outer surfaces of the transmission blades and the transmission rods are movably sleeved with transmission crawlers arranged on the outer surface of the wastewater filtering device, the position of the transmission rod is arranged inside the water collecting cavity and at the bottom edge position of the filtering slope, and a stirring plate is fixedly connected to the outer surface of the transmission rod.

[0012] In one embodiment of the present invention, a rectangular groove is provided on the inner wall of the wastewater filtering device at the bottom edge of the filtering slope, and the outer surface of the rectangular slider is movably sleeved on the inner wall of the rectangular groove.

[0013] In one embodiment of the present invention, a buffer wire is fixedly connected to the outer surface of the rectangular slider, a closing plate 2 is detachably installed on the inner wall of the rectangular groove, a hydraulic push rod is fixedly installed on the outer surface of the closing plate 2, and the output end of the hydraulic push rod is detachably installed on the outer surface of the rectangular slider.

[0014] In one embodiment of the present invention, a swinging plate is swingably connected to the outer surface of the rectangular slider, a conical docking block is arranged on the inner wall of the swinging plate, a clamping groove is opened on the outer surface of the swinging plate, and a water retaining filter plate arranged on the inner wall of the wastewater filter device is movably sleeved on the inner wall of the swinging plate.

[0015] In one embodiment of the present invention, conical grooves that are movably sleeved on the outer surface of the conical docking block are provided on both side surfaces of the water retaining filter plate, and a U-shaped clamping strip arranged on the top surface of the water retaining filter plate is movably sleeved on the inner wall surface of the clamping groove. A splash-proof sleeve is provided on the outer surface of the water retaining filter plate and in the direction of the sewage diversion pipe.

[0016] In one embodiment of the present invention, an interval heating plate is fixedly connected to the inner wall surface of the drain pipe, and a closing plate movably overlapped on the top surface of the interval heating plate is provided on the top inner wall surface of the drain pipe.

[0017] In one embodiment of the present invention, motors are arranged on the inner wall surfaces on both sides of the drain pipe, and a rolling cylinder movably overlapped on the top surface of the interval heating plate is fixedly connected to the output end of the motor.

[0018] In one embodiment of the present invention, a drainage cylinder is fixedly connected to the bottom surface of the drainage pipe, and one end of the drainage cylinder extends through the drainage pipe to the bottom edge of the spacer heating plate.

[0019] In one embodiment of the present invention, a chemical infusion pipe is fixedly connected to one side surface of the wastewater filtration device and located at the bottom edge of the chemical infusion pipe, and one end of the chemical infusion pipe extends through the wastewater filtration device to the bottom edge of the filtration slope.

[0020] The above technical solution of the present invention has the following advantages compared with the prior art:

[0021] The municipal cyanide-containing industrial wastewater treatment process and treatment device disclosed in the present invention injects purified industrial wastewater into the interior of a wastewater filter device through a sewage diversion pipe, and at the same time cooperates with a water-blocking splash plate to block the wastewater injected from the sewage diversion pipe, and then the impacted wastewater directly impacts the top surface of the filtering slope through the inclination angle of the water-blocking splash plate, cooperates with the filtering slope to perform secondary filtering treatment on solid impurities remaining in the wastewater, and then impacts the solid impurities adhering to the top surface of the filtering slope through a downward impacting water source, thereby achieving the effect of using the water-blocking splash plate to block the impacting water source and change the flow direction, and at the same time cooperates with the fast-flowing water source to impact the surface of the filter plate to impact the blocked impurities;

[0022] The municipal cyanide-containing industrial wastewater treatment process and treatment device described in the present invention, when the chemical precipitator and the wastewater in the water collection cavity are effectively and fully mixed together, the alkaline liquid contained in the chemical precipitator is used to increase the alkalinity of the wastewater, and at the same time, a chlorine-based oxidant is injected into the water collection cavity. The chlorine-based oxidant, such as chlorine gas, bleaching powder or sodium hypochlorite, oxidizes the cyanide in the wastewater into cyanate. After the cyanide is oxidized into cyanate in the first stage, the cyanate is further oxidized and decomposed into carbon dioxide and water in the second stage, and then the carbon dioxide generated in the water collection cavity is extracted and discharged by a blower, and at the same time, the residual water source is circulated and extracted for secondary recycling;

[0023] The municipal cyanide-containing industrial wastewater treatment process and treatment device described in the present invention, when the water source poured out from the drain pipe impacts the top surface of the filter slope, the impurities accumulated on the top surface of the filter slope flow toward the bottom layer of the filter slope under the impact of the water source, and at the same time cooperate with the water retaining filter plate to filter the impacted impurities, and at the same time cooperate with the splash-proof sleeve on the outer surface of the water retaining filter plate to contact with the impacted water source, cooperate with the cavity inside the splash-proof sleeve, so that the water source diffuses to the surroundings when impacting the inside of the splash-proof sleeve, and cooperate with the inner wall of the splash-proof sleeve to block the diffusion of the water source, which greatly reduces the excessive dispersion of the water source when impacting the surface of the water retaining filter plate, and achieves the effect of protecting and blocking the impacted water source by using the square cavity, reducing the excessive impact and dispersion of the water source when impacting the water retaining filter plate, causing pollution to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings.

[0025] Figure 1 is a stereogram of the present invention;

[0026] Figure 2is a side perspective view of the wastewater filtering device of the present invention;

[0027] Figure 3 is a cutaway stereoscopic view of the wastewater filtering device of the present invention;

[0028] Figure 4 It is a three-dimensional diagram of a rectangular slider in the present invention;

[0029] Figure 5 It is a three-dimensional diagram of the unfolded rectangular slider in the present invention;

[0030] Figure 6 is a cross-sectional stereoscopic view of a rectangular slider in the present invention;

[0031] Figure 7 is a cutaway stereoscopic view of a drain pipe in the present invention;

[0032] Figure 8 It is a three-dimensional diagram of the limiting ring in the present invention;

[0033] Fig. 9 It is a schematic diagram of the process of the present invention.

[0034] Explanation of the reference numerals in the specification: 11. Wastewater filtering device; 111. Filter slope; 112. Water-retaining and splash-proof plate; 113. Sewage diversion pipe; 114. Chemical agent infusion pipe; 115. Rectangular groove; 116. Water collecting cavity; 12. Limiting ring; 121. Transmission fan blade; 122. Transmission crawler; 123. Transmission rod; 124. Stirring plate; 13. Drain pipe; 131. Interval heating plate; 132. Motor; 133. Rolling cylinder; 134. Closing plate one; 135. Drain cylinder; 14. Rectangular slider; 141. Buffer wire; 142. Closing plate two; 143. Hydraulic push rod; 144. Swinging plate; 145. Conical docking block; 146. Snap-in groove; 147. Water-retaining and filter plate; 148. Conical groove; 149. U-shaped snap-in strip; 1410. Splash-proof sleeve. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0036] See also Figure 1 - Figure 8As shown, the present invention provides a municipal cyanide-containing industrial wastewater treatment device, comprising a wastewater filter 11 and a limiting ring 12 fixedly connected to the outer surface of the wastewater filter 11, a drain pipe 13 fixedly installed on one side surface of the wastewater filter 11 and located at the bottom edge position, a rectangular slider 14 movably sleeved on the inner wall surface of one side of the wastewater filter 11, a filtering slope 111 fixedly connected to the inner wall surface of the wastewater filter 11, a water-retaining splash plate 112 fixedly connected to the inner wall surface of the wastewater filter 11 and located at the top edge position of the filtering slope 111, a sewage diversion pipe 113 fixedly installed on one side surface of the wastewater filter 11 and located at the top edge position of the drain pipe 13 and the filtering slope 111, and the filtering slope 111. A water collecting cavity 116 is provided in the cavity between the filter 11 and the wastewater filter 11; the number of the limiting rings 12 is set in three groups, and the inner wall surfaces of the three groups of limiting rings 12 are respectively movably sleeved with a transmission rod 123 and a transmission blade 121, and the position of the transmission blade 121 is set at the top edge position of the filtering slope 111, and the outer surface of the transmission blade 121 is set at the water outlet of the sewage diversion pipe 113, and the outer surfaces of the transmission blade 121 and the transmission rod 123 are movably sleeved with a transmission crawler 122 arranged on the outer surface of the wastewater filter 11, and the position of the transmission rod 123 is set inside the water collecting cavity 116 and located at the bottom edge position of the filtering slope 111, and the outer surface of the transmission rod 123 is fixedly connected with a stirring plate 124;

[0037] The purified industrial wastewater is poured into the interior of the wastewater filter 11 through the sewage diversion pipe 113, and the wastewater poured out of the sewage diversion pipe 113 is blocked by the water-blocking splash plate 112 at the same time, and the impacted wastewater is directly impacted on the top surface of the filtering slope 111 by the inclination angle of the water-blocking splash plate 112, and the solid impurities left in the wastewater are subjected to secondary filtering treatment by cooperating with the filtering slope 111, and the solid impurities adhering to the top surface of the filtering slope 111 are impacted by the water source impacting downward, so as to achieve the effect of using the water-blocking splash plate 112 to block the impacted water source and change the flow direction, and at the same time, the surface of the filter plate is impacted by the fast-flowing water source to impact the blocked impurities, so as to avoid the impurities adhering to the top surface of the filtering slope 111, which will cause the filtering slope 111 to be blocked, and the water source cannot penetrate into the water collection cavity 116 through the filtering slope 111;

[0038] As the water source continuously penetrates into the water collection cavity 116 from the filtering slope 111, when the wastewater continuously accumulates inside the water collection cavity 116, when the water source inside the sewage diversion pipe 113 is infused into the wastewater filtering device 11, the impact force of the water source inside the sewage diversion pipe 113 is used to impact the surface of the transmission blade 121, so that the transmission blade 121 rotates on the inner wall surface of the limiting ring 12, and the rotating transmission blade 121 will drive the transmission crawler 122 on the outer end surface of the transmission blade 121, and then use the transmission crawler 122 to drive the other two sets of transmission rods 123 in the water collection cavity 1 16 rotates inside, and the rotating transmission rod 123 drives the stirring plate 124 on the outer surface of the transmission rod 123 to stir the inside of the water collecting cavity 116. At this time, the chemical precipitant is infused into the water collecting cavity 116 through the chemical agent infusion tube 114. Under the stirring and pushing of the stirring plate 124, the chemical precipitant and the wastewater inside the water collecting cavity 116 are effectively and fully mixed together, so that the chemicals and chemicals inside the wastewater are neutralized, thereby achieving the effect of using the transmission of the water source to drive the stirring inside the wastewater, so that the chemicals and the chemical substances inside the wastewater are fully neutralized.

[0039] Furthermore, if Figure 1 - Figure 6 As shown, a rectangular groove 115 is provided on the inner wall of the wastewater filtering device 11 and at the bottom edge of the filtering slope 111, the outer surface of the rectangular slider 14 is movably sleeved on the inner wall of the rectangular groove 115, a buffer wire 141 is fixedly connected to the outer surface of the rectangular slider 14, a closing plate 142 is detachably installed on the inner wall of the rectangular groove 115, a hydraulic push rod 143 is fixedly installed on the outer surface of the closing plate 142, the output end of the hydraulic push rod 143 is detachably installed on the outer surface of the rectangular slider 14, a swing plate 144 is swingably connected to the outer surface of the rectangular slider 14, and the swing plate 141 is detachably installed on the inner wall of the rectangular groove 115. A conical docking block 145 is provided on the inner wall surface of 44, a clamping groove 146 is provided on the outer surface of the swing plate 144, a water retaining filter plate 147 arranged on the inner wall surface of the wastewater filtering device 11 is movably sleeved on the inner wall surface of the swing plate 144, conical grooves 148 movably sleeved on the outer surface of the conical docking block 145 are provided on both side surfaces of the water retaining filter plate 147, a U-shaped clamping strip 149 arranged on the top surface of the water retaining filter plate 147 is movably sleeved on the inner wall surface of the clamping groove 146, and a splash-proof sleeve 1410 is provided on the outer surface of the water retaining filter plate 147 and in the direction of the sewage diversion pipe 113.

[0040] When the water source poured out from the drain pipe 13 impacts the top surface of the filtering slope 111, the impurities accumulated on the top surface of the filtering slope 111 flow toward the bottom layer of the filtering slope 111 under the impact of the water source, and at the same time cooperate with the water retaining filter plate 147 to filter out the impacted impurities, and at the same time cooperate with the splash-proof sleeve 1410 on the outer surface of the water retaining filter plate 147 to contact the impacted water source, and cooperate with the cavity inside the splash-proof sleeve 1410 to make the water source diffuse to the surroundings when impacting the inside of the splash-proof sleeve 1410, and cooperate with the inner wall of the splash-proof sleeve 1410 to block the diffusion of the water source, which greatly reduces the excessive dispersion of the water source when it impacts the surface of the water retaining filter plate 147, and achieves the effect of protecting and blocking the impacted water source by the square cavity, reducing the excessive impact and dispersion of the water source when it impacts the water retaining filter plate 147, causing pollution to the outside world.

[0041] Furthermore, if Figure 1 - Figure 3 and Figure 7 As shown, an interval heating plate 131 is fixedly connected to the inner wall of the drain pipe 13, a closing plate 134 movably overlapped on the top surface of the interval heating plate 131 is arranged on the top inner wall of the drain pipe 13, a motor 132 is arranged on the inner walls of both sides of the drain pipe 13, a rolling cylinder 133 movably overlapped on the top surface of the interval heating plate 131 is fixedly connected to the output end of the motor 132, a drainage cylinder 135 is fixedly connected to the bottom surface of the drain pipe 13, and one end of the drainage cylinder 135 extends through the drain pipe 13 to the bottom edge position of the interval heating plate 131, a chemical agent infusion pipe 114 is fixedly connected to one side surface of the wastewater filtration device 11 and located at the bottom edge position of the chemical agent infusion pipe 114, and one end of the chemical agent infusion pipe 114 extends through the wastewater filtration device 11 to the bottom edge position of the filtration slope 111.

[0042] When the chemical precipitator is effectively and fully mixed with the wastewater in the water collection cavity 116, the alkaline liquid contained in the chemical precipitator is used to increase the alkalinity of the wastewater. At the same time, a chlorine-based oxidant is injected into the water collection cavity 116. Chlorine-based oxidants such as chlorine, bleaching powder or sodium hypochlorite oxidize the cyanide in the wastewater into cyanate. After the cyanide is oxidized into cyanate in the first stage, the cyanate is further oxidized and decomposed into carbon dioxide and water in the second stage. The carbon dioxide generated in the water collection cavity 116 is then extracted and discharged by a blower. At the same time, the residual water source is circulated and extracted for secondary recycling.

[0043] When the wastewater inside the water collection cavity 116 is mixed, the equipment is stopped. After the chemical agents inside the wastewater are settled and stratified, the drainage pipe 13 is used to absorb the wastewater from the water source at the bottom of the water collection cavity 116. When the water source flows on the top surface of the interval heating plate 131, the interval heating plate 131 is used to heat the wastewater accumulated on the top at high temperature, thereby promoting the separation of impurities from the water source. The rolling drum 133 is used to roll the impurities flowing on the surface of the interval heating plate 131, so that the chemical impurities are separated from the water source. The water source after rolling and filtration passes through the interval heating plate 131 and is discharged through the motor 132, thereby achieving the effect of solidifying and settling the small amount of chemical agents remaining in the wastewater, and then rolling and differentiating the wastewater and the solidified chemical agents by rolling.

[0044] like Fig. 9 As shown, a municipal cyanide-containing industrial wastewater treatment process comprises the following steps:

[0045] S1. Use sedimentation filtration device to initially filter out large particles of impurities in industrial wastewater;

[0046] S2, the filtered wastewater is directed into the purification and filtration device, and then the wastewater is finely filtered;

[0047] S3, injecting polyaluminium chloride and hydrogen peroxide into the filtered wastewater, using hydrogen peroxide as an oxidant, and then neutralizing the cyanide wastewater inside the cyanide wastewater, reacting cyanide to generate non-toxic sodium bicarbonate, ammonia and oxidation treatment, while polyaluminium chloride will quickly condense and settle the impurities inside the wastewater;

[0048] S4. The condensed wastewater is extracted through the extraction device, and the wastewater is compacted with the compaction device, so that the water source in the wastewater is compacted out, and the settled impurities in the wastewater are compacted out.

[0049] Working principle: the purified industrial wastewater is poured into the interior of the wastewater filter 11 through the sewage diversion pipe 113, and the wastewater poured out of the sewage diversion pipe 113 is blocked by the water-blocking splash plate 112 at the same time, and the impacted wastewater is directly impacted on the top surface of the filter slope 111 by the inclination angle of the water-blocking splash plate 112, and the solid impurities left in the wastewater are subjected to secondary filtration treatment by cooperating with the filter slope 111, and the solid impurities adhering to the top surface of the filter slope 111 are impacted by the downward impacting water source, so as to achieve the effect of using the water-blocking splash plate 112 to block the impacted water source and change the flow direction, and at the same time, the fast-flowing water source is used to impact the surface of the filter plate to impact the blocked impurities, so as to avoid the impurities adhering to the top surface of the filter slope 111, which will cause the filter slope 111 to be blocked, and the water source cannot penetrate through the filter slope 111 into the water collection cavity 116;

[0050] As the water source continuously penetrates into the water collection cavity 116 from the filtering slope 111, when the wastewater continuously accumulates inside the water collection cavity 116, when the water source inside the sewage diversion pipe 113 is infused into the wastewater filtering device 11, the impact force of the water source inside the sewage diversion pipe 113 is used to impact the surface of the transmission blade 121, so that the transmission blade 121 rotates on the inner wall surface of the limiting ring 12, and the rotating transmission blade 121 will drive the transmission crawler 122 on the outer end surface of the transmission blade 121, and then use the transmission crawler 122 to drive the other two sets of transmission rods 123 in the water collection cavity 1 The interior of the water collecting cavity 116 rotates, and the rotating transmission rod 123 drives the stirring plate 124 on the outer surface of the transmission rod 123 to stir the interior of the water collecting cavity 116. At this time, the chemical precipitant is infused into the interior of the water collecting cavity 116 through the chemical agent infusion tube 114. Under the stirring and pushing of the stirring plate 124, the chemical precipitant and the wastewater in the water collecting cavity 116 are effectively and fully mixed together, so that the chemicals in the wastewater are neutralized with the chemical agents, so as to achieve the effect of using the transmission of the water source to drive the stirring inside the wastewater, so that the chemical agents and the chemical substances in the wastewater are fully neutralized;

[0051] When the water source poured out from the drain pipe 13 impacts the top surface of the filtering slope 111, the impurities accumulated on the top surface of the filtering slope 111 flow toward the bottom layer of the filtering slope 111 under the impact of the water source, and at the same time cooperate with the water retaining filter plate 147 to filter out the impacted impurities, and at the same time cooperate with the splash-proof sleeve 1410 on the outer surface of the water retaining filter plate 147 to contact the impacted water source, and cooperate with the cavity inside the splash-proof sleeve 1410 to make the water source diffuse to the surroundings when impacting the inside of the splash-proof sleeve 1410, and cooperate with the inner wall of the splash-proof sleeve 1410 to block the diffusion of the water source, which greatly reduces the excessive dispersion of the water source when it impacts the surface of the water retaining filter plate 147, and achieves the effect of protecting and blocking the impacted water source by the square cavity, reducing the excessive impact and dispersion of the water source when it impacts the water retaining filter plate 147, causing pollution to the outside world.

[0052] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A process for treating municipal cyanide-containing industrial wastewater, comprising the following steps: S1. Use sedimentation filtration device to initially filter out large particles of impurities in industrial wastewater; S2, the filtered wastewater is directed into the purification and filtration device, and then the wastewater is finely filtered; S3, injecting polyaluminium chloride and hydrogen peroxide into the filtered wastewater, using hydrogen peroxide as an oxidant, and then neutralizing the cyanide wastewater inside the cyanide wastewater, reacting cyanide to generate non-toxic sodium bicarbonate, ammonia and oxidation treatment, while polyaluminium chloride will quickly condense and settle the impurities inside the wastewater; S4. The condensed wastewater is extracted through the extraction device, and the wastewater is compacted with the compaction device, so that the water source in the wastewater is compacted out, and the settled impurities in the wastewater are compacted out.

2. A municipal cyanide-containing industrial wastewater treatment device, suitable for a municipal cyanide-containing industrial wastewater treatment process according to claim 1, comprising a wastewater filter (11) and a limiting ring (12) fixedly connected to the outer surface of the wastewater filter (11), a drain pipe (13) fixedly installed on one side surface of the wastewater filter (11) and located at the bottom edge position, a rectangular slider (14) movably sleeved on the inner wall surface of one side of the wastewater filter (11), a filtering slope (111) fixedly connected to the inner wall surface of the wastewater filter (11), a water-retaining splash plate (112) fixedly connected to the inner wall surface of the wastewater filter (11) and located at the top edge position of the filtering slope (111), a sewage diversion pipe (113) fixedly installed on one side surface of the wastewater filter (11) and located at the top edge position of the drain pipe (13) and the filtering slope (111), and the filtering A water collecting cavity (116) is arranged in the cavity between the inclined surface (111) and the wastewater filtering device (11); the number of the limiting rings (12) is arranged in three groups, and the inner wall surfaces of the three groups of limiting rings (12) are respectively movably sleeved with a transmission rod (123) and a transmission blade (121), and the position of the transmission blade (121) is arranged at the top edge position of the filtering inclined surface (111), and the outer surface of the transmission blade (121) is arranged at the water outlet of the sewage diversion pipe (113); the outer surfaces of the transmission blade (121) and the transmission rod (123) are movably sleeved with a transmission crawler (122) arranged on the outer surface of the wastewater filtering device (11); the position of the transmission rod (123) is arranged inside the water collecting cavity (116) and at the bottom edge position of the filtering inclined surface (111), and the outer surface of the transmission rod (123) is fixedly connected with a stirring plate (124).

3. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: A rectangular groove (115) is provided on the inner wall of the wastewater filtering device (11) and at the bottom edge of the filtering slope (111), and the outer surface of the rectangular sliding block (14) is movably sleeved on the inner wall of the rectangular groove (115).

4. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: A buffer wire (141) is fixedly connected to the outer surface of the rectangular slider (14), a closing plate 2 (142) is detachably mounted on the inner wall of the rectangular groove (115), a hydraulic push rod (143) is fixedly mounted on the outer surface of the closing plate 2 (142), and the output end of the hydraulic push rod (143) is detachably mounted on the outer surface of the rectangular slider (14).

5. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: A swing plate (144) is swingably connected on the outer surface of the rectangular sliding block (14), a conical docking block (145) is arranged on the inner wall of the swing plate (144), a clamping groove (146) is provided on the outer surface of the swing plate (144), and a water retaining filter plate (147) arranged on the inner wall of the wastewater filtering device (11) is movably sleeved on the inner wall of the swing plate (144).

6. A municipal cyanide-containing industrial wastewater treatment device according to claim 5, characterized in that: The two side surfaces of the water retaining filter plate (147) are provided with conical grooves (148) movably sleeved on the outer surface of the conical docking block (145); the inner wall surface of the clamping groove (146) is movably sleeved with a U-shaped clamping strip (149) arranged on the top surface of the water retaining filter plate (147); and a splash-proof sleeve (1410) is arranged on the outer surface of the water retaining filter plate (147) and in the direction of the sewage diversion pipe (113).

7. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: The inner wall surface of the drain pipe (13) is fixedly connected to an interval heating plate (131), and the top inner wall surface of the drain pipe (13) is provided with a closing plate (134) movably overlapped on the top surface of the interval heating plate (131).

8. A municipal cyanide-containing industrial wastewater treatment device according to claim 7, characterized in that: Motors (132) are arranged on the inner wall surfaces on both sides of the drainage pipe (13), and a rolling cylinder (133) movably overlapped on the top surface of the spacer heating plate (131) is fixedly connected to the output end of the motor (132).

9. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: A drainage cylinder (135) is fixedly connected to the bottom surface of the drainage pipe (13), and one end of the drainage cylinder (135) passes through the drainage pipe (13) and extends to the bottom edge of the spacer heating plate (131).

10. A municipal cyanide-containing industrial wastewater treatment device according to claim 2, characterized in that: A chemical agent infusion pipe (114) is fixedly connected to one side surface of the wastewater filtering device (11) and located at the bottom edge of the chemical agent infusion pipe (114), and one end of the chemical agent infusion pipe (114) passes through the wastewater filtering device (11) and extends to the bottom edge of the filtering slope (111).

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