An apparatus for co - treating mine acid wastewater by using alkali residue

Abstract

The present invention provides a device for synergistically treating mine acid wastewater by using alkali residue, which relates to the technical field of mine acid wastewater treatment and includes: a reaction kettle; a cover plate is arranged at the middle position of the top of the reaction kettle, and a mounting plate is hermetically arranged at the lower position inside the reaction kettle, and a mixing motor is fixedly connected to the middle position of the bottom of the mounting plate. By driving the rotation of the mixing shaft, the fixed plate and the movable plate by the mixing motor, the efficient mixing of the acid wastewater and the alkali residue is realized. The design of the movable plate enables the rotation amplitude between the movable plate and the fixed plate to be adaptively adjusted during the mixing process, which not only ensures the mixing effect but also avoids the collision with the precipitate, protects the device and improves the treatment efficiency. It solves the problem that in the existing technology, while continuing to stir and mix after the formation of the precipitate, the agglomerated precipitate is likely to touch the stirring fan blades, resulting in the dispersion of the precipitate, and at the same time, the dispersing force will damage the stirring fan blades.

Description

Technical Field

[0001] The present invention relates to the technical field of mine acid wastewater treatment, and particularly to a device for co - treating mine acid wastewater by using alkali residue. Background Art

[0002] The acid wastewater generated during the mine exploitation contains a large amount of heavy metal ions and acidic substances, posing a serious threat to the environment and ecological system. Traditional treatment methods mostly use alkaline substances such as lime for neutralization, but the cost is relatively high, and it is easy to generate a large amount of low - density sludge, making the treatment difficult. Therefore, it is particularly important to develop a new technology that can efficiently utilize alkali residue waste to co - treat mine acid wastewater.

[0003] Application No. CN202021448588.4 discloses a system for co - treating mine acid mining wastewater and alkaline ore - dressing wastewater. The system includes a pre - neutralization unit, a co - reaction unit, a flocculation unit, and a precipitation unit. The utility model improves the utilization rate of lime, reduces the dosage of lime, increases the density of the neutralization precipitate, reduces the sludge volume, effectively reduces the adhesion of alkali and precipitate to the overall equipment pipeline, and thus slows down the scaling and corrosion of the equipment.

[0004] Based on the retrieval of the above patent and the understanding of the existing application of alkali residue in co - treating mine acid wastewater: Currently, when alkali residue reacts with acid wastewater, it promotes the complex chemical reaction between the alkaline components in the alkali residue and the acidic substances and heavy metal ions in the acid wastewater to form stable precipitates. After the formation of the precipitates, while continuing to stir and mix, the agglomerated precipitates are likely to touch the stirring fan blades, resulting in the dispersion of the precipitates, and at the same time, the dispersing force will damage the stirring fan blades.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a device for co - treating mine acid wastewater by using alkali residue is provided, with the expectation of achieving a more practical value. Summary of the Invention

[0006] In order to solve the above - mentioned technical problems, the present invention provides a device for co - treating mine acid wastewater by using alkali residue, so as to solve the problem that after the complex chemical reaction between the alkaline components in the alkali residue and the acidic substances and heavy metal ions in the acid wastewater forms stable precipitates, while continuing to stir and mix after the formation of the precipitates, the agglomerated precipitates are likely to touch the stirring fan blades, resulting in the dispersion of the precipitates, and at the same time, the dispersing force will damage the stirring fan blades.

[0007] The present invention provides a device for co - treating mine acid wastewater with alkali residue, specifically including: a reaction kettle; a cover plate is arranged at the middle position on the top of the reaction kettle, an installation plate is hermetically arranged at the lower position inside the reaction kettle, a mixing motor is fixedly connected to the middle position at the bottom of the installation plate, the mixing motor is located at the middle position at the lower part inside the reaction kettle, a mixing shaft is fixedly connected above the rotating shaft of the mixing motor, the mixing shaft passes through the middle position of the installation plate, one fixing plate is symmetrically and fixedly connected to both sides of the mixing shaft, a movable plate rotates unidirectionally at the bottom position of each fixing plate, two wall plates are fixedly connected to the side position of each fixing plate, a spring member is arranged inside each wall plate, both sides of the movable plate rotating at the bottom of each fixing plate are connected to a spring member, and two transverse plates are arranged at the side position of each movable plate.

[0008] Further, a water inlet valve is arranged at the upper position at the rear end of the reaction kettle, a water outlet valve is arranged at the lower position at the rear end of the reaction kettle, and the water outlet valve is located below the water inlet valve.

[0009] Further, when the fixing plate and the movable plate are in a static state, the movable plate fits with the wall plate, the spring member is in a normal contracted state, a cross is fixedly installed at the middle and lower position of the reaction kettle, and the top position of the mixing shaft is rotatably connected to the middle position of the cross.

[0010] Further, a mesh - permeable plate is arranged at the middle and upper position inside the reaction kettle, and the mesh - permeable plate is located above the cross.

[0011] Further, a pump pipe is arranged at the upper position inside the cover plate, a water pump is arranged on the pump pipe, and the lower position at the front end of the pump pipe is located above a collection tank, and the collection tank is located at the front end of the reaction kettle.

[0012] Further, an adding port is arranged at the middle and right position on the top of the cover plate, a telescopic L - shaped pipe is rotatably connected to the lower position inside the rear end of the pump pipe, a side groove is opened at the lower position inside the L - shaped pipe, and a screw conveyor is arranged inside the L - shaped pipe.

[0013] Further, a threaded hole is opened at the middle and rear position of the cover plate, and an adjusting bolt is rotatably connected to the threaded hole of the cover plate. The bottom position of the adjusting bolt is rotatably connected to the top and rear position of a gear disk, and the middle position of the L - shaped pipe is fixed to the middle position of the gear disk.

[0014] Further, the gear disk is located at the middle and upper position inside the reaction kettle, a sliding frame is slidably connected to the circumferential surface of the gear disk, a surrounding motor is fixedly installed at the top position of the sliding frame, a gear is arranged at the bottom rotating shaft of the surrounding motor, and the gear meshes with the gear disk for transmission.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By driving the rotation of the mixing shaft, the fixed plate, and the movable plate through a hybrid motor, efficient mixing of acidic wastewater and alkali residue is achieved. The design of the movable plate enables adaptive adjustment of the rotation amplitude between the movable plate and the fixed plate during the mixing process, ensuring both the mixing effect and avoiding collisions with the sediment, protecting the device and improving the treatment efficiency.

[0017] 2. The spring member in the device can automatically adjust the position of the movable plate according to the rotation speed of the mixing shaft, ensuring that after the mixing stops, the movable plate can reset and perform a circumferential sweeping of the sediment, improving the sediment collection efficiency.

[0018] 3. Through the design of the adjusting bolt and the gear disk, the height and position of the L-tube can be flexibly adjusted. In cooperation with the screw conveyor, effective collection and transfer of the floating matter inside the reaction kettle are achieved, further improving the thoroughness and efficiency of wastewater treatment.

[0019] 4. The start of the surrounding motor enables the L-tube to rotate and adjust at the position below the rear end of the pump tube. In cooperation with the screw conveyor, circumferential collection of the floating matter is achieved, ensuring the uniformity and comprehensiveness of the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0021] In the drawings:

[0022] Figure 1 shows a top view structural schematic diagram of the device for co-processing mine acidic wastewater with alkali residue according to an embodiment of the present invention;

[0023] Figure 2 shows a left view structural schematic diagram of the device for co-processing mine acidic wastewater with alkali residue according to an embodiment of the present invention;

[0024] Figure 3 shows a side view structural schematic diagram of the device for co-processing mine acidic wastewater with alkali residue according to an embodiment of the present invention;

[0025] Figure 4 shows a half-sectional left view structural schematic diagram of the device for co-processing mine acidic wastewater with alkali residue according to an embodiment of the present invention;

[0026] Figure 5 shows a half-sectional side view structural schematic diagram of the device for co-processing mine acidic wastewater with alkali residue according to an embodiment of the present invention;

[0027] Figure 6 shows a side view structural schematic diagram of some parts in the reaction kettle according to an embodiment of the present invention;

[0028] Figure 7 shows the partial enlarged structural schematic diagram at position A in an embodiment according to the present invention Figure 6 ;

[0029] Figure 8 shows the side view structural schematic diagram of the overall cover plate part in an embodiment according to the present invention

[0030] List of reference numerals

[0031] 1. Reactor; 101. Water inlet valve; 102. Water outlet valve; 103. Mounting plate; 104. Mixing motor; 105. Mixing shaft; 106. Cross; 107. Fixed plate; 108. Movable plate; 109. Wall plate; 110. Spring member; 2. Cover plate; 201. Pump pipe; 202. Adjusting bolt; 203. Tooth disc; 204. L-shaped pipe; 205. Screw conveyor; 206. Sliding frame; 207. Surrounding motor; 208. Gear; 3. Collection tank; 4. Mesh permeable plate Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present disclosure

[0033] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present disclosure have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless clearly defined in the embodiments of the present disclosure

[0034] In the embodiments of the present disclosure, terms such as "first", "second" and similar words do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "a", "an" or "the" do not denote a quantity limitation either, but indicate that there is at least one. Similarly, words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. In the following description, spatial and orientation terms such as "upper", "lower", "front", "rear", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present disclosure, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the drawings, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connected", "coupled", "fixed" and "attached" may refer to a direct connection between two elements or structures without other elements or structures, or may refer to an indirect connection between two elements or structures through intermediate elements or structures, unless otherwise clearly stated herein. Embodiment

[0035] As shown in the Figure 1 accompanying Figure 8 drawings:

[0036] The present invention provides a device for co - treating mine acid wastewater with alkali residue, including: a reaction kettle 1; a cover plate 2 is arranged at the middle position on the top of the reaction kettle 1, an installation plate 103 is hermetically arranged at the lower position inside the reaction kettle 1, a mixing motor 104 is fixedly connected to the middle position at the bottom of the installation plate 103, the mixing motor 104 is located at the middle position at the lower part inside the reaction kettle 1, a mixing shaft 105 is fixedly connected to the upper position of the rotating shaft of the mixing motor 104, the mixing shaft 105 passes through the middle position of the installation plate 103, one fixing plate 107 is symmetrically and fixedly connected to each side of the mixing shaft 105, a movable plate 108 rotates unidirectionally at the bottom position of each fixing plate 107, two wall plates 109 are fixedly connected to the side position of each fixing plate 107, a spring member 110 is arranged inside each wall plate 109, both sides of the movable plate 108 rotating at the bottom of each fixing plate 107 are connected to a spring member 110, and two transverse plates are arranged at the side position of each movable plate 108.

[0037] Among them, a water inlet valve 101 is arranged at the upper position at the rear end of the reaction kettle 1, a water outlet valve 102 is arranged at the lower position at the rear end of the reaction kettle 1, and the water outlet valve 102 is located below the water inlet valve 101.

[0038] Among them, when the fixed plate 107 and the movable plate 108 are in a static state, the movable plate 108 is in contact with the wall plate 109, the spring member 110 is in a normal contracted state, a cross 106 is fixedly installed at the middle lower position of the reaction kettle 1, and the top position of the mixing shaft 105 is rotatably connected to the middle position of the cross 106.

[0039] Among them, a mesh permeable plate 4 is arranged at the middle upper position inside the reaction kettle 1. The mesh permeable plate 4 is located above the cross 106. The structural design of the mesh permeable plate 4 avoids the situation that wastewater enters the upper position inside the reaction kettle 1 during the mixing process inside the reaction kettle 1, resulting in shaking due to the influence of the inertia of the wastewater, and reduces the internal acting force of the reaction kettle 1.

[0040] Among them, a pump pipe 201 is arranged at the upper position inside the cover plate 2. The pump pipe 201 is provided with a water pump, and the front lower position of the pump pipe 201 is located above the collection tank 3. The collection tank 3 is located at the front position of the reaction kettle 1.

[0041] Among them, an addition port is arranged at the middle right position on the top of the cover plate 2. The rear lower position inside the rear end of the pump pipe 201 is rotatably connected with a telescopic L-shaped pipe 204. A side groove is opened at the lower position inside the L-shaped pipe 204, and a screw conveyor 205 is arranged inside the L-shaped pipe 204. A threaded hole is opened at the middle rear position of the cover plate 2, and an adjusting bolt 202 is rotatably connected inside the threaded hole of the cover plate 2. The bottom position of the adjusting bolt 202 is rotatably connected to the top rear position of the gear disk 203. The middle position of the L-shaped pipe 204 is fixed at the middle position of the gear disk 203.

[0042] Among them, the gear disk 203 is located at the middle upper position inside the reaction kettle 1. A sliding frame 206 is slidably connected to the circumferential surface of the gear disk 203. A surrounding motor 207 is fixedly installed at the top position of the sliding frame 206. A gear 208 is arranged on the bottom rotating shaft of the surrounding motor 207. The gear 208 is meshed with the gear disk 203 for transmission.

[0043] During use:

[0044] Add mine acidic wastewater through the water inlet valve 101 at the rear end of the reaction kettle 1, add an appropriate amount of mine acidic wastewater inside the reaction kettle 1. Next, add alkali residue and flocculant through the addition port on the cover plate 2. The alkali residue enters the reaction kettle 1 and reacts with the acidic wastewater, promoting the aggregation and sedimentation of the precipitate, improving the sedimentation efficiency, and reducing the sludge volume.

[0045] During the reaction between acidic wastewater and alkali residue, start the mixing motor 104 to make its own rotating shaft rotate clockwise. The rotating shaft of the mixing motor 104 will drive the mixing shaft 105 to rotate clockwise. At this time, the fixed plates 107 designed on both sides of the mixing shaft 105 rotate inside the reaction kettle 1 to fully mix the acidic wastewater and alkali residue inside the reaction kettle 1;

[0046] During the process of the two fixed plates 107 being driven to rotate by the mixing shaft 105, the two movable plates 108 generate resistance when contacting the mixed water according to the clockwise rotation of the fixed plates 107, causing the movable plates 108 to rotate below the fixed plates 107. The transverse plates of the movable plates 108 will change direction to accelerate the mixing of the mixture inside the reaction kettle 1. The movable plates 108 adaptively adjust the rotation amplitude between the fixed plates 107 according to the rotation speed of the mixing shaft 105 to avoid the situation where the movable plates 108 collide with the sediment already formed at the bottom of the reaction kettle 1 during the mixing process, breaking up the sediment or even damaging themselves.

[0047] After stable sediment is formed inside the reaction kettle 1, stop the operation of the mixing motor 104. When the rotation speed of the mixing shaft 105 drops, it will no longer drive the two fixed plates 107 to rotate rapidly. At this time, the spring member 110 contracts and resets, driving the movable plate 108 to fit with the wall plate 109, so that the movable plate 108 is reset to the position below the fixed plate 107. While the movable plate 108 is reset by the powerless inertia of the mixing shaft 105, it sweepingly collects and concentrates the sediment above the mounting plate 103 in a circular manner.

[0048] After stable sediment is formed inside the reaction kettle 1, there will be floating objects at the upper position inside the reaction kettle 1. Rotate the adjusting bolt 202. The cooperation between the adjusting bolt 202 and the threaded hole of the cover plate 2 will drive the position of the gear disk 203 to change. The L-shaped pipe 204 will complete sliding up and down below the rear end of the pump pipe 201 and adjust the L-shaped pipe 204 to the position of the floating object. Start the screw conveyor 205. The screw conveyor 205 will transfer the floating object into the inside of the L-shaped pipe 204, and then the pump pipe 201 will transfer the floating object into the collection tank 3 for collection;

[0049] In addition, after starting the surrounding motor 207, the gear 208 meshes with the gear disk 203 to make the sliding frame 206 rotate around the outer circumferential surface of the gear disk 203. The L-shaped pipe 204 will be rotationally adjusted below the rear end of the pump pipe 201. During the rotation of the L-shaped pipe 204, the position of the screw conveyor 205 is adjusted to achieve a circular collection effect on the floating objects inside the reaction kettle 1.

[0050] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A device for co-treating acid mine wastewater using alkali residue, characterized in that: include: Reactor; A cover plate is provided at the middle position of the top of the reactor, a mounting plate is provided at the lower position of the reactor in a sealed manner, a mixing motor is fixedly connected at the middle position of the bottom of the mounting plate, the mixing motor is located at the middle position of the lower position of the reactor, a mixing shaft is fixedly connected at the position above the rotating shaft of the mixing motor, the mixing shaft is located through the middle position of the mounting plate, a fixed plate is symmetrically fixedly connected at both sides of the mixing shaft, a movable plate is unidirectionally connected at the bottom position of each fixed plate, two wall plates are fixedly connected at the side positions of each fixed plate, a spring member is provided inside each wall plate, both sides of the movable plate rotating at the bottom of each fixed plate are connected to a spring member, and two transverse plates are provided at the side positions of each movable plate; A water inlet valve is arranged above the rear end of the reactor, and a water outlet valve is arranged below the rear end of the reactor, and the water outlet valve is located below the water inlet valve; When the fixed plate and the movable plate are in a stationary state, the movable plate fits against the wall plate, and the spring member is in a normal contracted state; a cross is fixedly installed at the middle lower position of the reactor, and the top position of the mixing shaft is rotatably connected to the middle position of the cross; A mesh plate is provided at the upper middle position of the reactor, and the mesh plate is located above the cross; A pump pipe is arranged at the upper inner part of the cover plate, the pump pipe is provided with a water pump, and the lower front end of the pump pipe is located above the collecting tank, and the collecting tank is located at the front end of the reactor; The top middle right position of the cover plate is provided with a adding port, the lower inner position of the rear end of the pump tube is rotatably connected with a retractable L-tube, the lower inner position of the L-tube is provided with a side groove, and the inner position of the L-tube is provided with a screw conveyor; A threaded hole is provided at the middle rear position of the cover plate, and an adjusting bolt is rotatably connected in the threaded hole of the cover plate, the bottom position of the adjusting bolt is rotatably connected to the top rear end position of the toothed disc, and the middle position of the L tube is fixed to the middle position of the toothed disc; The toothed disc is located in the middle of the upper part of the reactor, and a sliding frame is slidably connected to the circumference of the toothed disc. A surrounding motor is fixedly installed on the top of the sliding frame. A gear is arranged on the bottom rotating shaft of the surrounding motor, and the gear meshes with the toothed disc for transmission.

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