Underground polluted water multi-stage treatment device

Abstract

The invention discloses a multi-stage treatment device for underground polluted water, and relates to the technical field of sewage multi-stage treatment. The packing guide mechanism is arranged in the third inner cavity, the second filter belt forms a multi-layer structure uniformly distributed in the third inner cavity from top to bottom by virtue of the guide of a plurality of third rollers which are arranged in a left-right staggered manner, and a plurality of layers of relatively independent spaces are formed in the third inner cavity by virtue of the separation of the second filter belt; the spherical filler can be uniformly distributed in multiple layers of relatively independent spaces in the third inner cavity, so that the contact uniformity of the spherical filler and sewage is improved, the completely used spherical filler can quickly fall onto the second filter belt at the bottom of the corresponding relatively independent space, and the spherical filler is quickly guided out by virtue of the rotation of the second filter belt; and the spherical filler is not easy to collide and hook with other suspended spherical fillers in the falling process, so that the stability of the device for carrying out microbiological treatment on underground sewage by using the spherical filler is improved to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of multi-stage sewage treatment, and in particular to a multi-stage treatment device for underground polluted water. Background Art

[0003] In the prior art, in the process of underground sewage treatment, processes such as debris filtration, microbial filler treatment, chemical flocculation treatment, and static sedimentation are usually used to complete the multi-stage treatment operation of underground polluted water bodies. Among them, when using microbial fillers to treat sewage, harmful substances in the sewage are decomposed by microorganisms and then attached to the fillers, resulting in an increase in the weight of the fillers, which will cause the fillers that have reached the end of their service life to sink to the bottom of the water. In actual application, due to the large water storage depth of underground sewage treatment equipment and the uneven distribution of harmful substances in sewage, some fillers are completely sunk to the bottom when used, while the remaining fillers are still in a state of suspended adsorption. This makes it inevitable that when the fully used fillers sink to the bottom, they will be connected or collided with other fillers that are still in use, thereby interfering with the fillers in normal operation and affecting the stability and efficiency of the multi-stage treatment of underground sewage.

[0004] Therefore, a multi-stage treatment device for underground polluted water is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art in the multi-stage treatment process of underground sewage, that is, the use of complete fillers in the process of falling over a long distance can easily interfere with other suspended normally operating fillers, thereby affecting the stability and efficiency of the multi-stage treatment of sewage, and to propose a multi-stage treatment device for underground contaminated water.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] A multi-stage treatment device for underground polluted water comprises a filter box and a microbial treatment box, wherein a third inner cavity is fixedly installed in the microbial treatment box, and the third inner cavity is filled with a plurality of evenly distributed spherical fillers, a filler guiding mechanism is arranged in the third inner cavity, and the filler exporting mechanism comprises a plurality of third rollers which are staggeredly installed on the left and right sides of the third inner cavity for rotation from top to bottom, a second filter belt is orderly connected with the plurality of third rollers for transmission, a second opening which is arranged corresponding to each layer of the second filter belt is staggeredly opened on the left and right end walls of the third inner cavity, fourth rollers are rotatably installed in the upper left corner and the left and right sides of the bottom of the microbial treatment box, the second filter belt is transmission sleeved on the outside of the three fourth rollers, a second guide plate which is located on the left and right sides of the third inner cavity is fixedly installed at the lower position in the microbial treatment box, a second outlet which is connected corresponding to the second guide plate is opened on the outer end wall of the microbial treatment box, and a lifting mechanism which is connected to the second outlet is installed on the outside of the microbial treatment box.

[0008] Preferably, a first inner cavity is installed at the upper position in the filter box, and a second inner cavity connected to the bottom of the first inner cavity is installed at the lower position in the filter box. The top of the first inner cavity is fixedly connected to a water inlet pipe, and the bottom of the second inner cavity is fixedly connected to a water outlet pipe. A multi-stage filtration mechanism is arranged in the first inner cavity, and the water inlet pipe is connected to an external power pump. A vertically arranged first liquid level sensor is fixedly installed in the second inner cavity, a second liquid level sensor is installed at the upper position in the microbial treatment box, a first pump is fixedly installed on the top of the filter box, and the water inlet of the first pump is connected to the water outlet pipe, and the water outlet of the first pump is connected to the microbial treatment box.

[0009] Preferably, the multi-stage filtering mechanism includes a plurality of first rollers which are rotatably installed on the left and right sides of the first inner cavity from top to bottom, a first filter belt is orderly transmitted and connected between the plurality of first rollers, first openings which are arranged corresponding to each layer of the first filter belt are staggered on the left and right end walls of the first inner cavity, second rollers are rotatably installed in the upper left corner and on the left and right sides of the bottom of the filter box, the first filter belt is transmission sleeved on the outside of the three second rollers, a first guide plate located on the left and right sides of the first inner cavity is fixedly installed in the filter box, and a first outlet which is connected corresponding to the first guide plate is opened on the outer end wall of the filter box.

[0010] Preferably, the first ring belt is fixedly installed on the front and rear edge positions of the first filter belt, and the first air pipe arranged below each layer of the first filter belt is fixedly installed on the front and rear inner end walls of the first inner cavity, and the first air pipe is arranged as an arc-shaped structure with a downward depression in the middle position, and a plurality of evenly distributed spray holes 1 are opened on the top of the first air pipe, and the spray holes 1 point to the first ring belt.

[0011] Preferably, second annular belts are fixedly installed on the front and rear edge positions of the second filter belt, and second air pipes arranged below each layer of the second filter belt are fixedly installed on the front and rear inner end walls of the third inner cavity, and the second air pipes are arranged as an arc-shaped structure with a downward depression in the middle position, and a large number of evenly distributed spray holes 2 are opened on the top of the second air pipe, and the spray holes 2 point to the second annular belt.

[0012] Preferably, each layer of the second filter belt is provided with a diversion pipe, and the top ends of the plurality of diversion pipes are fixedly connected to a delivery pipe, and the delivery pipe is externally connected to a filler supply device.

[0013] Preferably, the lifting mechanism includes a vertically arranged shell, and conveying rollers are rotatably installed on the upper and lower sides of the shell, the outer sides of the two conveying rollers are jointly transmission-sleeved with a conveyor belt, and a large number of evenly distributed buckets are fixedly installed on the outer end wall of the conveyor belt, a first servo motor is fixedly installed on the outer end wall of the shell, and the drive shaft of the first servo motor is transmission-connected to one of the conveying rollers, and a third outlet is opened on the top of the shell.

[0014] Preferably, a second pump is fixedly installed outside the microbial treatment box, and a water inlet of the second pump is fixedly connected to the microbial treatment box, and a water outlet of the second pump is fixedly connected to the third inner cavity.

[0015] Preferably, the position of the third roller located at the top corresponds one-to-one to the position of the first roller, the position of the fourth roller corresponds one-to-one to the position of the second roller, the first roller and the third roller corresponding to each other, and the second roller and the fourth roller corresponding to each other are fixedly connected, and a second servo motor is fixedly installed on the outside of the microbial treatment box, and the second servo motor is transmission-connected to one of the fourth rollers.

[0016] Preferably, a first transmission belt is connected between the numerous first rollers on the left side, a second transmission belt is connected between the numerous first rollers on the right side and the second roller at the lower right, a third transmission belt is connected between the two second rollers at the upper left and lower left, a fourth transmission belt is connected between the two second rollers at the lower left and lower right, and mutually meshing gears are fixedly connected between the first roller at the upper left and the second roller.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, by arranging the filler guiding mechanism in the third inner cavity, with the help of the guidance of many third rollers staggered on the left and right, the second filter belt forms a multi-layer structure evenly distributed in the third inner cavity from top to bottom, and with the help of the separation of the second filter belt, multiple layers of relatively independent spaces are formed in the third inner cavity, so that the spherical fillers can be evenly distributed in the multiple layers of relatively independent spaces in the third inner cavity, which is beneficial to improve the uniformity of the contact between the spherical fillers and sewage. In addition, the completely used spherical fillers will quickly fall onto the second filter belt at the bottom of the corresponding relatively independent space, and be quickly guided out with the help of the rotation of the second filter belt, so that the spherical fillers are not easy to collide or connect with other suspended spherical fillers during the falling process, which improves the stability of the device using spherical fillers for microbial treatment of underground sewage to a certain extent.

[0019] 2. In the present invention, by installing a multi-stage filtering mechanism in the first inner cavity, with the guidance of a plurality of first rollers staggered left and right, the first filter belt forms a multi-layer filtering structure staggered from top to bottom left and right in the first inner cavity, which is conducive to achieving fine filtration of debris in sewage. At the same time, with the continuous rotation and movement of the first filter belt, not only can the debris blocked by the filtration on the corresponding layer of the filtration structure in the first filter belt be discharged through the first opening to avoid the continuous accumulation of debris on the first filter belt to affect the filtration effect, but also the reciprocating forward and reverse flushing of the first filter belt can be achieved, which greatly improves the stability of the first filter belt in filtering sewage, which is conducive to improving the efficiency and effect of the device for filtering underground sewage to a certain extent.

[0020] 3. In the present invention, by setting the first annular belt at the front and rear edge positions of the first filter belt, and setting the first air pipe with a downward depression in the middle position below the first annular belt corresponding to each layer of the first filter belt, an airflow layer is formed between the first air pipe and the first annular belt by means of high-speed ejection of an airflow from the spray hole on the first air pipe, and by means of negative pressure adsorption, the first air pipe and the first annular belt can be tightly connected, so that each layer of the filter structure in the first filter belt forms an arc-shaped structure with a downward depression in the middle position, which can not only prevent the sewage from leaking to the left and right sides along the first filter belt during the falling process, but also better fill the sewage with oxygen, so that the sewage is in an oxygen-rich state, which is beneficial to improving the efficient stability of the subsequent treatment of the sewage by microorganisms in the spherical filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 This is a disassembled diagram of the internal structure of the filter box of the present invention;

[0023] Figure 3 A three-dimensional diagram of the first roller, the first filter belt, the second roller and the first endless belt of the present invention;

[0024] Figure 4 This is a disassembled diagram of the internal structure of the microbial treatment box of the present invention;

[0025] Figure 5 It is a stereoscopic diagram of the third roller, the second filter belt, the fourth roller and the second endless belt of the present invention;

[0026] Figure 6 This is a disassembled diagram of the lifting mechanism of the present invention;

[0027] Figure 7 A top view of the present invention;

[0028] Figure 8 For the present invention Figure 7 Sectional view at AA in the middle;

[0029] Fig. 9 For the present invention Figure 7 Sectional view at the middle BB;

[0030] Fig.10 For the present invention Figure 7 Sectional view at CC;

[0031] Fig.11 For the present invention Figure 7 Sectional view at DD in the middle;

[0032] Fig.12 For the present invention Figure 7 Cross-sectional view at EE in the middle.

[0033] Serial number in the picture:

[0034] 1. Filter box; 101. First inner cavity; 102. Second inner cavity; 103. Water inlet pipe; 104. Water outlet pipe; 105. First liquid level sensor;

[0035] 2. first roller; 201. first filter belt; 202. first opening; 203. second roller; 204. first endless belt; 205. first air pipe; 206. first guide plate; 207. first outlet;

[0036] 3. Microbial treatment box; 301. Third inner cavity; 302. Second liquid level sensor;

[0037] 4, third roller; 401, second filter belt; 402, second opening; 403, fourth roller; 404, second endless belt; 405, second air pipe; 406, second guide plate; 407, second outlet;

[0038] 5. first pump; 501. diversion pipe; 502. delivery pipe;

[0039] 6. Shell; 601. Conveyor roller; 602. Conveyor belt; 603. Bucket; 604. First servo motor; 605. Third outlet;

[0040] 7. Second servo motor; 701. First transmission belt; 702. Second transmission belt; 703. Third transmission belt; 704. Fourth transmission belt; 705. Gear. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Embodiment: This embodiment provides a multi-stage treatment device for underground polluted water. Figure 1 - Fig.12 Specifically, it includes a filter box 1 and a microbial treatment box 3, a first inner cavity 101 is installed at the upper position of the filter box 1, a second inner cavity 102 connected to the bottom of the first inner cavity 101 is installed at the lower position of the filter box 1, a water inlet pipe 103 is fixedly connected to the top of the first inner cavity 101, and a water outlet pipe 104 is fixedly connected to the bottom of the second inner cavity 102, a multi-stage filtering mechanism is arranged in the first inner cavity 101, and the multi-stage filtering mechanism includes a plurality of first rollers 2 which are staggered and rotatably installed on the left and right sides of the first inner cavity 101 from top to bottom, a first filter belt 201 is orderly driven and connected between the plurality of first rollers 2, first openings 202 corresponding to each layer of the first filter belt 201 are staggered on the left and right end walls of the first inner cavity 101, and second rollers are rotatably installed in the upper left corner and the left and right sides of the bottom of the filter box 1 203, the first filter belt 201 is drivenly sleeved on the outside of the three second rollers 203, a first guide plate 206 located on the left and right sides of the first inner cavity 101 is fixedly installed in the filter box 1, and a first outlet 207 corresponding to the first guide plate 206 is opened on the outer end wall of the filter box 1, a first pump 5 is fixedly installed on the top of the filter box 1, and the water inlet of the first pump 5 is connected to the water outlet pipe 104, the water outlet of the first pump 5 is connected to the microbial treatment box 3, a third inner cavity 301 is fixedly installed in the microbial treatment box 3, and the third inner cavity 301 is filled with a large number of evenly distributed spherical fillers, the water inlet pipe 103 is externally connected to a power pump, a vertically arranged first liquid level sensor 105 is fixedly installed in the second inner cavity 102, and a second liquid level sensor 302 is installed at the upper position in the microbial treatment box 3.

[0043] When the device is in use, the water inlet of the external power pump of the water inlet pipe 103 is connected to the underground sewage source. After the power pump is powered on and started, the underground sewage to be treated can be transported to the upper position of the first inner cavity 101 through the water inlet pipe 103, and then falls from top to bottom in the first inner cavity 101, and finally gathers in the second inner cavity 102 below. The first liquid level sensor 105 fixedly installed in the second inner cavity 102 can monitor the water level in the second inner cavity 102, and the second liquid level sensor 302 installed at the upper position in the microbial treatment box 3 can monitor the water level in the microbial treatment box 3. When the water level in the second inner cavity 102 is too high, the pumping efficiency of the power pump and the first pump 5 can be controlled to reduce the pumping efficiency of the power pump or increase the pumping efficiency of the first pump 5 to achieve water level control in the second inner cavity 102. This can prevent sewage from overflowing out of the second inner cavity 102. When the water level in the microbial treatment tank 3 is too high, the first pump 5 can be stopped from pumping water into the microbial treatment tank 3 to prevent sewage from overflowing out of the microbial treatment tank 3. The priority of stopping the first pump 5 from pumping water into the microbial treatment tank 3 is greater than the priority of the first pump 5 pumping water into the microbial treatment tank 3.

[0044] When underground sewage falls downward from the first inner cavity 101 into the second inner cavity 102, it will pass through the first filter belts 201 which are orderly wound between the multiple first rollers 2. Under the guidance of the multiple first rollers 2 staggered left and right, the first filter belt 201 forms a multi-layer structure interlaced in the first inner cavity 101 from top to bottom. During the falling process of sewage, the multi-layer structure staggered by the first filter belts 201 can effectively filter large particles such as garbage, impurities, and sludge in the sewage. During the filtration process, the top layer of the first filter belt 201 filters and blocks the most debris, and then decreases layer by layer from top to bottom. During the filtration process, the first roller 2 and the second roller 203 will rotate synchronously. Through the rotation and guidance of the numerous first rollers 2 and the second roller 203, the first filter belt 201 is effectively moved, so that the multi-layer filtration structure formed by the first filter belt 201 in the first inner cavity 101 is continuously changed. Figure 8 Taking the structure in the middle as an example, the first filter belt 201 rotates clockwise under the guidance and rotation drive of the first roller 2 and the second roller 203. When the debris in the sewage stays above the uppermost layer of the first filter belt 201 in the first inner cavity 101 due to filtration, along with the continuous rotation of the first filter belt 201, the debris will be driven by the first filter belt 201 to move synchronously, and finally be discharged through the first opening 202 correspondingly opened on the right end wall of the first inner cavity 101, and fall onto the first guide plate 206 on the right. Similarly, the debris filtered and blocked on the second layer of the first filter belt 201 will be driven by its movement to be discharged through the first opening 202 correspondingly opened on the left end wall of the first inner cavity 101, fall onto the first guide plate 206 on the left, and finally be discharged outward through the first outlet 207.

[0045] Similarly, the debris filtered and blocked on the remaining layers of the subsequent first filter belt 201 are the same as the above operation, and will eventually fall onto the first guide plate 206 and be discharged outward from the first outlet 207. The first guide plate 206 is tilted upward at one end away from the corresponding first outlet 207, so that the upper surface of the first outlet 207 forms an inclined surface, which facilitates the guidance of the debris falling on the first guide plate 206 to be smoothly discharged through the first outlet 207. The first filter belt 201 forms a multi-layer filtering structure in the first inner cavity 101, and the first filter belt 201 is continuously moved and transported, so that the debris in the sewage can be finely filtered, and the continuous accumulation of debris on the first filter belt 201 can be avoided, which affects the filtration efficiency, thereby improving the efficiency and effect of the device for underground sewage filtration to a certain extent.

[0046] In the process of guiding out the debris by the continuous movement of the first filter belt 201, because the first filter belt 201 is guided by the multiple first rollers 2 to form a multi-layer structure overlapped from top to bottom and from left to right, the multi-layer filter structure formed in the first filter belt 201 uses opposite filter surfaces when filtering sewage, with the upper surface of the first filter layer structure on the top of the first filter belt 201 being surface a and the lower surface being surface b. When the first filter layer structure in the first filter belt 201 is filtering sewage, the sewage flows from surface a to surface b, and the debris is blocked on surface a. When the sewage continues to pass downward through the second filter structure, due to the guidance of the first roller 2 on the right side of the first filter structure, the surface b in the second filter structure is at the top and the surface a is at the bottom. At the bottom, the falling sewage flows from surface b to surface a in the second layer of filtering mechanism in the first filter belt 201, and the debris is blocked on surface b, thereby realizing the backwash of the first filter belt 201, and the debris attached to the filter holes of the first filter belt 201 can be cleaned out. Moreover, due to the multi-layer filtering structure formed in the first filter belt 201, the debris filtered and blocked from top to bottom is gradually reduced, and the filtering and blocking of debris in the sewage is mostly realized on the upper two layers of filtering structure in the first filter belt 201. This makes it possible for the filtering structure of the remaining layers below to repeatedly flush the first filter belt 201 during operation, which can ensure that the first filter belt 201 can effectively filter and block the debris in the sewage for a long time and stably, and to a certain extent improve the high efficiency and stability of the device in treating underground sewage.

[0047] The sewage after the impurities are filtered out is finally gathered in the second inner cavity 102 below, and then the first pump 5 is powered on and started, and the underground sewage after the impurities are filtered out is pumped into the microbial treatment box 3 through the connection with the outlet pipe 104. The sewage is gradually filled in the microbial treatment box 3. The spherical fillers evenly distributed in the third inner cavity 301 are filled with microbial groups for sewage treatment flocculation. The microbial groups in the spherical fillers can decompose, absorb and flocculate harmful substances in the sewage, so that the harmful substances are finally attached to the spherical fillers. When the spherical fillers are initially put into the sewage, their own weight is relatively light and they can be suspended in the sewage. When a large amount of harmful substances are absorbed and attached to the spherical fillers, the weight of the spherical fillers will increase, and they will eventually be unable to suspend in the sewage and sink downward. Finally, the sewage treated by the spherical fillers in the microbial treatment box 3 is output to the outside, and then chemical flocculation, standing and other process treatments are carried out to achieve multi-stage treatment of underground sewage.

[0048] In the specific implementation process, Figure 2 , Figure 8 and Fig.10 As shown, the first ring belt 204 is fixedly installed on the front and rear edge positions of the first filter belt 201, and the first air pipe 205 arranged below each layer of the first filter belt 201 is fixedly installed on the front and rear inner end walls of the first inner cavity 101, and the first air pipe 205 is arranged to be an arc-shaped structure with a downward depression in the middle position, and a plurality of evenly distributed spray holes 1 are opened on the top of the first air pipe 205, and the spray holes 1 point to the first ring belt 204.

[0049] When the device is in use, the first air pipe 205 is externally connected to an air pump. After the air pump is powered on and started, a high-speed airflow is provided into the first air pipe 205. The airflow is ejected through a nozzle hole provided on the first air pipe 205, and acts on the outer surface of the first annular belt 204. With the help of the high-speed flow of the airflow, an airflow layer is formed between the first annular belt 204 and the first air pipe 205. Under the action of the Bernoulli effect, the first air pipe 205 is closely connected with the first annular belt 204 through the airflow layer, and finally the first annular belt 204 and the corresponding parts of the first air pipe 205 form a similar downwardly curved structure, which drives each layer of the filtering structure on the first filter belt 201 to form a downwardly concave middle position. The arc-shaped structure prevents a large amount of sewage from flowing to the left and right sides along the surface of the first filter belt 201 and being discharged in the process of the sewage falling from top to bottom through the multi-layer filtering structure in the first filter belt 201, which is beneficial to ensuring the stability of the device in filtering impurities in the sewage through the multi-stage filtering structure in the first inner cavity 101. Simultaneously, the airflow ejected from the spray hole 1 on the first air pipe 205 will flow along the surface of the first annular belt 204 and the first filter belt 201. In the process of filtering the sewage by the first filter belt 201, oxygen is better filled into the sewage, so that the sewage is in an oxygen-rich state, which is beneficial to improving the efficient stability of the sewage being treated by microorganisms in the subsequent spherical fillers.

[0050] In the specific implementation process, Figure 4 - Figure 6 and Fig. 9 - Fig.10 As shown, a filler guiding mechanism is provided in the third inner cavity 301, and the filler outlet mechanism includes a plurality of third rollers 4 which are rotatably installed on the left and right sides of the third inner cavity 301 from top to bottom, and a second filter belt 401 is orderly driven and connected between the plurality of third rollers 4, and second openings 402 corresponding to each layer of the second filter belt 401 are staggered on the left and right end walls of the third inner cavity 301, and fourth rollers 403 are rotatably installed at the upper left corner and the left and right sides of the bottom of the microbial treatment box 3, and the second filter belt 401 is driven and sleeved on the outer sides of the three fourth rollers 403, and a second guide plate 406 located on the left and right sides of the third inner cavity 301 is fixedly installed at the lower position in the microbial treatment box 3, and a second outlet 407 corresponding to the second guide plate 406 is opened on the outer end wall of the microbial treatment box 3, and a lifting mechanism connected to the second outlet 407 is installed on the outer side of the microbial treatment box 3.

[0051] When the device is in use, under the guidance of the plurality of third rollers 4 on the left and right sides of the third inner cavity 301, the second filter belt 401 forms a multi-layer structure evenly distributed in the third inner cavity 301 from top to bottom. Through the separation of the second filter belt 401, multiple layers of relatively independent spaces are formed in the third inner cavity 301, and the plurality of spherical fillers are evenly dispersed in the multiple layers of independent spaces in the third inner cavity 301. In the initial state, the spherical fillers are suspended in the multiple layers of independent spaces in the third inner cavity 301. After the microorganisms in the spherical fillers treat the sewage, the harmful substances decomposed in the sewage adhere to the spherical fillers, resulting in an increase in the weight of the spherical fillers. Finally, the spherical filler cannot be suspended in the sewage. After use, the spherical filler falls down and finally falls onto the second filter belt 401 corresponding to the bottom of each independent space in the third inner cavity 301. Then, the rotation of the third roller 4 and the fourth roller 403 drives the second filter belt 401 to rotate continuously, and the spherical filler that falls onto the second filter belt 401 can be exported outward through the corresponding second opening 402. The exported spherical filler is transferred to the left and right sides of the third inner cavity 301 in the microbial treatment box 3, continues to fall downward onto the second guide plate 406, and then enters the lifting mechanism through the second outlet 407, and is transferred outward with the help of the lifting mechanism.

[0052] During the operation of the device, since the second filter belt 401 forms a multi-layer structure and divides the third inner cavity 301 into multiple relatively independent spaces, the numerous spherical fillers filled in the third inner cavity 301 can be evenly dispersed in the multiple relatively independent spaces. The height of each relatively independent space is limited, so that once the spherical fillers reach the end of their service life and fall down onto the corresponding second filter belt 401, they can be quickly taken out of the third inner cavity 301 by the movement of the second filter belt 401. Compared with the sewage treatment equipment in the prior art that does not have a filler guiding mechanism, the spherical fillers can be prevented from interfering with other spherical fillers that have not reached their service life during their falling process, thereby improving the stability of the device for microbial treatment of underground sewage using spherical fillers to a certain extent.

[0053] A second pump is fixedly installed on the outside of the microbial treatment box 3, and the water inlet of the second pump is fixedly connected to the microbial treatment box 3, and the water outlet of the second pump is fixedly connected to the third inner cavity 301. When the device is in use, after the second pump is powered on and started, the sewage on the left and right sides of the third inner cavity 301 in the microbial treatment box 3 will be continuously pumped into the third inner cavity 301, so that the sewage in the microbial treatment box 3 can be more completely in contact with the spherical filler in the third inner cavity 301, which is conducive to ensuring the comprehensive stability of the sewage being treated by the spherical filler in the third inner cavity 301 in the microbial treatment box 3.

[0054] In the specific implementation process, Figure 4 , Fig. 9 and Fig.10 As shown, second annular belts 404 are fixedly installed on the front and rear edge positions of the second filter belt 401, and second air pipes 405 arranged below each layer of the second filter belt 401 are fixedly installed on the front and rear inner end walls of the third inner cavity 301, and the second air pipes 405 are arranged as an arc-shaped structure with a downward depression in the middle position, and a plurality of evenly distributed spray holes 2 are opened on the top of the second air pipe 405, and the spray holes 2 point to the second annular belt 404.

[0055] When the device is used, the second air pipe 405 is connected to an external air pump. After the air pump is powered on and started, a high-speed airflow is provided into the second air pipe 405. The airflow is ejected through the second spray hole opened on the second air pipe 405, and acts on the outer surface of the second annular belt 404. With the help of the high-speed flow of the airflow, an airflow layer is formed between the second annular belt 404 and the second air pipe 405. Under the action of the Bernoulli effect, the second air pipe 405 is closely connected with the second annular belt 404 through the airflow layer, and finally the corresponding parts of the second annular belt 404 and the second air pipe 405 form a similar downwardly curved structure, which drives the second filter belt 401 to be uniformly Each distributed layer forms an arc-shaped structure with a downward depression in the middle, and the multiple relatively independent spaces formed in the third inner cavity 301 are changed into a structure with a downward bend in the middle, which is beneficial to prevent the spherical fillers that have not reached the end of their service life from leaking to both sides of the third inner cavity 301. At the same time, through the high-speed injection of airflow, an aeration operation is formed in the third inner cavity 301, which is beneficial to further increase the oxygen content in the sewage, improve the efficiency of the microorganisms in the spherical fillers in treating the sewage, and enhance the effect of flocculation of suspended particles in the sewage through the flow of water, thereby improving the sewage treatment effect of the device in the microbial treatment box 3 to a certain extent.

[0056] In the specific implementation process, Figure 6 and Fig.12 As shown, each layer of the second filter belt 401 is provided with a shunt pipe 501, and the top ends of the plurality of shunt pipes 501 are commonly fixedly connected to a conveying pipe 502, and the conveying pipe 502 is externally connected to a filler supply device, and the lifting mechanism includes a vertically arranged shell 6, and conveying rollers 601 are rotatably installed on the upper and lower sides of the shell 6, and the outer sides of the two conveying rollers 601 are commonly transmission-sleeved with a conveyor belt 602, and a plurality of evenly distributed buckets 603 are fixedly installed on the outer end wall of the conveyor belt 602, and a first servo motor 604 is fixedly installed on the outer end wall of the shell 6, and the driving shaft of the first servo motor 604 is transmission-connected to one of the conveying rollers 601, and a third outlet 605 is opened on the top of the shell 6.

[0057] When the device is in use, the filler supply device conveys the spherical filler through the conveying pipe 502, and the spherical filler is diverted to the corresponding relatively independent space in the third inner cavity 301 through the plurality of diversion pipes 501 connected below the conveying pipe 502. After the spherical filler that has reached the end of its service life falls onto the second guide plate 406, it enters the lower part of the shell 6 through the second outlet 407 under the guidance of the second guide plate 406. The end of the second guide plate 406 away from the second outlet 407 is arranged to be inclined upward, which can ensure that the spherical filler on the second guide plate 406 can smoothly enter the shell 6 through the second outlet 407, and then the first servo The motor 604 is powered on and started, driving the upper and lower conveying rollers 601 to rotate synchronously, thereby causing the conveyor belt 602 to rotate continuously, driving the numerous buckets 603 evenly fixed on its outside to move back and forth up and down. The buckets 603 are arranged as a hollow structure, and the spherical fillers entering the bottom of the shell 6 through the second outlet 407 are continuously scooped by the buckets 603, conveyed upward, and finally exported outward through the third outlet 605. The setting of the lifting mechanism can facilitate the staff to promptly remove the spherical fillers that have sunk to the bottom of the microbial treatment box 3 without interfering with the sewage treatment operation in the microbial treatment box 3, which is conducive to ensuring the stability of the continuous operation of the device.

[0058] In the specific implementation process, Figure 2 , Figure 4 and Fig.11 As shown, the position of the upper part of the third roller 4 corresponds to the position of the first roller 2, the position of the fourth roller 403 corresponds to the position of the second roller 203, the corresponding first roller 2 and third roller 4, and the corresponding second roller 203 and fourth roller 403 are fixedly connected, a second servo motor 7 is fixedly installed on the outer side of the microbial treatment box 3, and the second servo motor 7 is transmission connected to one of the fourth rollers 403, a first transmission belt 701 is transmission connected between the many first rollers 2 on the left side, a second transmission belt 702 is transmission connected between the many first rollers 2 on the right side and the second roller 203 at the lower right, a third transmission belt 703 is transmission connected between the two second rollers 203 at the upper left and lower left, a fourth transmission belt 704 is transmission connected between the two second rollers 203 at the lower left and lower right, and a mutually meshing gear 705 is fixedly connected between the first roller 2 at the upper left and the second roller 203.

[0059] When the device is in use, the second servo motor 7 is powered on and started. Under the transmission connection of the first transmission belt 701, the second transmission belt 702, the third transmission belt 703 and the fourth transmission belt 704, and the meshing transmission of the two gears 705, the plurality of first rollers 2 and the second rollers 203 can be driven to maintain synchronous rotation, so that the first filter belt 201 can be transported in an orderly and stable manner. Since the plurality of third rollers 4 and the fourth rollers 403 are interconnected with the corresponding first rollers 2 and the second rollers 203, the single second servo motor 7 can not only drive the first filter belt 201 to rotate in an orderly manner, but also drive the second filter belt 401 to rotate in an orderly manner, which can effectively reduce the usage of the second servo motor 7, facilitate energy-saving underground sewage treatment, and avoid the chaotic rotation of the first filter belt 201 and the second filter belt 401, thereby ensuring the operating stability of the device to a certain extent.

[0060] Specifically, the working principle and operation method of the present invention are as follows:

[0061] The water inlet pipe 103 is connected to the power pump to transport the underground sewage to be treated to the upper position in the first inner cavity 101. The sewage falls in the first inner cavity 101 and passes through the multi-layer filtering structure formed by the second filter belt 401 to filter out the debris in the sewage. The sewage gathers in the second inner cavity 102 below. In the process of filtering the debris in the sewage through the multi-layer filtering structure in the first filter belt 201, the debris blocked by the filtration can be introduced into the first guide plate 206 by means of the rotation movement of the first filter belt 201, and then exported through the first outlet 207, and the reciprocating flushing of the first filter belt 201 can be achieved to ensure the filtering efficiency of the first filter belt 201 for the debris in the sewage. The high-speed airflow sprayed from the spray hole 1 on the first air pipe 205 can realize the connection between the first air pipe 205 and the first annular belt 204, and the multi-layer filtering structure on the first filter belt 201 and the corresponding part of the first air pipe 205 form a structure with a downward concave middle position, so as to avoid a large amount of sewage loss from the left and right sides along the first filter belt 201 during the filtration process.

[0062] Through the connection of the shunt pipe 501, the spherical fillers are evenly transported to the multiple relatively independent spaces formed in the third inner cavity 301. Under the pumping of the first pump 5, the sewage in the second inner cavity 102 is filled in the microbial treatment box 3. The sewage is treated by the microorganisms in the spherical fillers in the third inner cavity 301. The spherical fillers are suspended in many relatively independent spaces in the third inner cavity 301 to adsorb the harmful substances in the flocculated sewage. After the service life of the spherical fillers is reached, they fall due to the increase of their own weight and fall onto the corresponding second filter belt 401. With the help of the rotation movement of the second filter belt 401, the spherical fillers are moved to the corresponding second filter belt 401. The third inner cavity 301 is transported on both sides, and finally the spherical filler falls onto the second guide plate 406, and is introduced into the bottom of the shell 6 through the second outlet 407. Then the first servo motor 604 is powered on and started, driving the conveying roller 601 to rotate, driving the conveyor belt 602 to rotate continuously, so as to realize the up and down reciprocating transportation of many buckets 603, and lift the spherical filler that has reached the end of its service life and sunk to the bottom to the third outlet 605 for export. Finally, the sewage in the microbial treatment box 3 treated with the spherical filler is output to the outside, and then other process treatments such as chemical flocculation and standing are carried out to realize multi-stage treatment of underground sewage.

[0063] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage treatment device for underground polluted water, comprising a filter box (1) and a microbial treatment box (3), characterized in that: A third inner cavity (301) is fixedly installed in the microbial treatment box (3), and the third inner cavity (301) is filled with a plurality of evenly distributed spherical fillers. A filler guiding mechanism is arranged in the third inner cavity (301), and the filler outlet mechanism comprises a plurality of third rollers (4) which are staggered and rotated from top to bottom on the left and right sides of the third inner cavity (301), and a second filter belt (401) is connected to each other in an orderly transmission manner. The left and right end walls of the third inner cavity (301) are staggered with second openings (402) arranged corresponding to each layer of the second filter belt (401). Fourth rollers (403) are rotatably mounted at the upper left corner and the left and right sides of the bottom of the microbial treatment box (3); the second filter belt (401) is transmission-sleeved on the outside of the three fourth rollers (403); second guide plates (406) located on the left and right sides of the third inner cavity (301) are fixedly mounted at the lower position of the microbial treatment box (3); a second outlet (407) corresponding to and communicating with the second guide plate (406) is opened on the outer end wall of the microbial treatment box (3); and a lifting mechanism connected with the second outlet (407) is installed on the outside of the microbial treatment box (3).

2. The multi-stage treatment device for underground polluted water according to claim 1 is characterized in that: A first inner cavity (101) is installed at an upper position in the filter box (1), and a second inner cavity (102) connected to the bottom of the first inner cavity (101) is installed at a lower position in the filter box (1). The top of the first inner cavity (101) is fixedly connected to a water inlet pipe (103), and the bottom of the second inner cavity (102) is fixedly connected to a water outlet pipe (104). A multi-stage filtering mechanism is arranged in the first inner cavity (101), the water inlet pipe (103) is externally connected to a power pump, and a vertically arranged first liquid level sensor (105) is fixedly installed in the second inner cavity (102). A second liquid level sensor (302) is installed at an upper position in the microbial treatment box (3). A first pump (5) is fixedly installed at the top of the filter box (1), and the water inlet of the first pump (5) is connected to the water outlet pipe (104), and the water outlet of the first pump (5) is connected to the microbial treatment box (3).

3. The multi-stage treatment device for underground polluted water according to claim 1 is characterized by: The multi-stage filtering mechanism comprises a plurality of first rollers (2) which are rotatably mounted on the left and right sides of the first inner cavity (101) in an interlaced manner from top to bottom; a first filter belt (201) is orderly connected to the plurality of first rollers (2); first openings (202) corresponding to each layer of the first filter belt (201) are interlacedly provided on the left and right end walls of the first inner cavity (101); second rollers (203) are rotatably mounted at the upper left corner and the left and right sides of the bottom of the filter box (1); the first filter belt (201) is rotatably sleeved on the outer sides of three second rollers (203); first guide plates (206) located on the left and right sides of the first inner cavity (101) are fixedly mounted in the filter box (1); and a first outlet (207) corresponding to the first guide plates (206) is provided on the outer end wall of the filter box (1).

4. The multi-stage treatment device for underground polluted water according to claim 3 is characterized by: The first ring belt (204) is fixedly installed at the front and rear edge positions of the first filter belt (201), and the first air pipe (205) arranged below each layer of the first filter belt (201) is fixedly installed on the front and rear inner end walls of the first inner cavity (101), and the first air pipe (205) is arranged as an arc-shaped structure with a downward depression in the middle position, and a plurality of evenly distributed spray holes (1) are opened on the top of the first air pipe (205), and the spray holes (1) point to the first ring belt (204).

5. The multi-stage treatment device for underground polluted water according to claim 1 is characterized by: Second annular belts (404) are fixedly installed at the front and rear edge positions of the second filter belt (401), and second air pipes (405) arranged below each layer of the second filter belt (401) are fixedly installed on the front and rear inner end walls of the third inner cavity (301), and the second air pipes (405) are arranged in an arc-shaped structure with a downward depression in the middle position, and a plurality of evenly distributed spray holes (2) are opened on the top of the second air pipe (405), and the spray holes (2) point to the second annular belt (404).

6. The multi-stage treatment device for underground polluted water according to claim 1 is characterized by: A diversion pipe (501) is provided on each layer of the second filter belt (401), and the top ends of the plurality of diversion pipes (501) are fixedly connected to a delivery pipe (502), and the delivery pipe (502) is externally connected to a filler supply device.

7. The multi-stage treatment device for underground polluted water according to claim 1 is characterized by: The lifting mechanism comprises a vertically arranged shell (6), and conveying rollers (601) are rotatably installed on both upper and lower sides of the shell (6), and a conveying belt (602) is commonly driven and sleeved on the outer sides of the two conveying rollers (601), and a plurality of evenly distributed buckets (603) are fixedly installed on the outer end wall of the conveying belt (602), and a first servo motor (604) is fixedly installed on the outer end wall of the shell (6), and the driving shaft of the first servo motor (604) is drivingly connected to one of the conveying rollers (601), and a third outlet (605) is opened on the top of the shell (6).

8. The multi-stage treatment device for underground polluted water according to claim 1 is characterized by: A second pump is fixedly installed outside the microbial treatment box (3), and a water inlet of the second pump is fixedly connected to the microbial treatment box (3), and a water outlet of the second pump is fixedly connected to the third inner cavity (301).

9. The multi-stage treatment device for underground polluted water according to claim 3 is characterized by: The position of the third roller (4) located at the upper part corresponds to the position of the first roller (2), and the position of the fourth roller (403) corresponds to the position of the second roller (203). The first roller (2) and the third roller (4) corresponding to each other, and the second roller (203) and the fourth roller (403) corresponding to each other are fixedly connected. A second servo motor (7) is fixedly installed on the outer side of the microbial treatment box (3), and the second servo motor (7) is transmission-connected to one of the fourth rollers (403).

10. The multi-stage treatment device for underground polluted water according to claim 9, characterized in that: A first transmission belt (701) is connected between the plurality of first rollers (2) on the left side, a second transmission belt (702) is connected between the plurality of first rollers (2) on the right side and the second roller (203) at the lower right, a third transmission belt (703) is connected between the two second rollers (203) at the upper left and lower left, a fourth transmission belt (704) is connected between the two second rollers (203) at the lower left and lower right, and a mutually meshing gear (705) is fixedly connected between the first roller (2) at the upper left and the second roller (203).

Images