Livestock manure slurry treatment process

Abstract

The present application discloses a kind of livestock and poultry manure slurry treatment process, comprising the following steps: sewage neutralization, aeration oxidation, foam collection, sewage transfer, foam scraping equipment cleaning and sewage precipitation, sewage is sent into aeration tank after being carried out neutralization reaction in neutralization reaction tank and is carried out aeration treatment, a plurality of groups of bubble-removing components and bubble-scraping components that can be moved to the top of aeration tank are arranged on the rotary component of rotary motion, the filter plate mechanism in bubble-removing component makes aeration tank form closed space and constantly moves down to improve the pressure in aeration tank, increase dissolved oxygen content and dissolved oxygen efficiency, then sewage enters transfer tank, the foam scraping plate in bubble-scraping component scrapes the foam in transfer tank, and both are simultaneously transferred to cleaning component for cleaning by cleaning component, then sewage enters sedimentation tank for sedimentation, which greatly improves the treatment efficiency of sewage.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewage treatment method, in particular to a livestock and poultry manure biogas slurry treatment process. BACKGROUND

[0002] Biogas slurry is a brown and bright liquid formed after fermentation of organic matter, containing various types of chlorine-based acids, vitamins, proteins, growth hormones, sugars, nucleic acids and antibiotics, etc. Biogas slurry is mainly used for seed soaking, foliage spraying, nutrient soil mixing, flower and fruit preservation agents, soilless culture mother liquor, and plant cultivation, etc. However, there are also NH3, PO and other substances in the biogas slurry which pollute the environment. If discharged without treatment, these substances will pollute the water environment.

[0003] At present, there are few methods for treating livestock and poultry manure biogas slurry. Traditional biogas slurry treatment methods include natural ecological purification and industrial treatment. However, the former requires a large amount of land occupation and a long time, and the latter requires high costs. Both methods have some disadvantages in treating livestock and poultry manure biogas slurry, and the treatment of livestock and poultry manure biogas slurry is still not ideal. Therefore, a livestock and poultry manure biogas slurry treatment method is needed to improve the treatment effect of livestock and poultry manure biogas slurry, save purification treatment time, and reduce the land occupation of equipment, etc.

[0004] A kind of acid industrial wastewater treatment system is disclosed in Chinese patent application No. CN201721838476.8, which comprises a sewage tank, a neutralization tank, a coagulation tank, a sedimentation tank, a treatment tank, an aeration tank and a filter. The utility model can remove most of the water pollutants in industrial wastewater. By adjusting the pH of acid wastewater and filtering the wastewater, the wastewater can be effectively purified. Then, by aeration, the organic matter in the wastewater is killed. Finally, by hollow fiber membrane ultrafiltration, small molecular compounds in the wastewater are filtered out. The acid industrial wastewater, especially the acid industrial wastewater containing organic matter, can be completely purified. The purification material required is very common and does not pollute the environment.

[0005] However, a large amount of foam is generated during aeration, which can accumulate on the surface of the tank and affect the oxygen dissolution efficiency of the tank water. SUMMARY

[0006] To solve the above problems, the present application provides a livestock and poultry manure biogas slurry treatment process. A plurality of defoaming assemblies are arranged on a rotating assembly in a rotating motion, which can be moved to the top of the aeration tank. The filter plate mechanism in the defoaming assembly can extend into the aeration tank. The filter plate mechanism forms a closed space in the aeration tank, which increases the pressure in the aeration tank and improves the oxygen dissolution amount and efficiency. At the same time, the filter plate mechanism can collect the foam generated during aeration, which is then cleaned by the cleaning assembly.

[0007] To achieve the above object, the present application provides the following technical solutions.

[0008] A livestock and poultry manure slurry treatment process, comprising the following steps:

[0009] Step one: sewage neutralization, acidic sewage is introduced into the neutralization reaction tank, and alkali solution is added to adjust the pH value;

[0010] Step two: aeration oxidation, after step one, the sewage in the neutralization reaction tank flows into the aeration tank, and oxygen is introduced into the aeration tank for aeration;

[0011] Step three: aeration tank foam collection, after step two, the conveying assembly drives the filter plate mechanism to move directly opposite the aeration tank, and the foam scraper rotates into the transfer tank, the power assembly drives the filter plate mechanism to extend into the aeration tank, the foam enters the filter plate mechanism through the filter hole, then the filter plate mechanism continues to move down, and the limiting mechanism acts to reduce the filter hole diameter;

[0012] Step four: sewage transfer, after step three, the filter plate mechanism continues to move down and comes into contact with the opening and closing mechanism a, thereby driving valve a and valve b to open the channel, the sewage enters the transfer tank through the channel, and the filter plate mechanism moves to the bottom of the aeration tank and comes into contact with the opening and closing mechanism b, which transfers all the sewage to the transfer tank while driving the valve b to close the channel, then the filter plate mechanism moves up again, comes into contact with the opening and closing mechanism a again, and drives the valve a to reset;

[0013] Step five: transfer tank foam scraping, after step four, the conveying assembly drives the filter plate mechanism and the foam scraper to move, and the foam scraper scrapes the foam in the transfer tank;

[0014] Step six: equipment cleaning, after step five, the conveying assembly drives the filter plate mechanism and the foam scraping assembly to move directly opposite the cleaning assembly, and the cleaning assembly cleans them;

[0015] Step seven: sewage sedimentation, after step five, the sewage in the transfer tank is introduced into the sedimentation tank for sedimentation treatment.

[0016] As an improvement, in step three, the foam scraper rotates to the bottom surface of the transfer tank under the action of the gear c and the rack c.

[0017] As an improvement, in step three, the rack b engages with the gear b to drive the rotating shaft to rotate, thereby driving the limiting disc to rotate, the limiting disc drives the limiting plate to move horizontally, and the limiting strip blocks the filter hole.

[0018] As improvement, in step four, the filter plate mechanism is in contact with the rack a arranged above and below alternately in the opening and closing mechanism a, the gear a is reversed, the lead screw is reversed, the sleeve and the sliding rod are moved back and forth, and the valve a is moved.

[0019] As improvement, in step four, the filter plate mechanism is in contact with the limiting rod, the transmission rod is moved, the wedge block is driven to move up to drive the valve b to close the channel, and the valve a remains stationary.

[0020] As improvement, in step four, the aeration tank and the transfer tank are separated by the partition plate, and the channel is arranged below the partition plate.

[0021] As improvement, in step five, with the movement of the foam scraper in the transfer tank, the gear d is engaged with the rack e to drive the baffle to rotate, facilitating the movement of the foam scraper out of the transfer tank.

[0022] As improvement, in step six, the filter plate mechanism is moved down by the push rod to drive the mounting seat to move down, and the moving plate is moved horizontally under the action of the guide rail, so that the mounting frame a and the mounting frame b drive the brush roller to clean the filter plate mechanism and the foam scraper respectively.

[0023] As improvement, in step three and step six, under the action of the guide strip, the limiting rod is separated from the filter plate mechanism, and the filter plate mechanism can move up and down.

[0024] As improvement, in step three and step six, two groups of filter plate mechanisms move up and down simultaneously through the power assembly.

[0025] The beneficial effects of the present application are:

[0026] (1) In step three, the filter plate mechanism extends into the aeration tank to make the aeration tank in a closed space, and with the continuous movement of the filter plate mechanism, the pressure in the aeration tank increases, the dissolved oxygen content and the dissolved oxygen efficiency of the sewage are improved, and the sewage treatment effect is improved.

[0027] (2) In step three to step six, after the filter plate mechanism and the foam scraping assembly collect impurities, they are moved to the cleaning assembly for cleaning, and the next clean filter plate mechanism and foam scraping assembly are moved above the aeration tank body, improving the cleaning efficiency of the filter plate mechanism and the foam scraping assembly, and further improving the sewage treatment efficiency.

[0028] (3) in step three, the filter plate mechanism stretches into the aeration tank, the foam in the aeration tank is floated to the position between the filter plate and the mounting plate through the filter hole, then the limiting mechanism changes the size of the filter hole in the filter plate mechanism by changing the dislocation position of the limiting strip and the filter hole, so that the foam remains between the filter plate and the mounting plate, then the filter plate and the mounting plate crush the foam to realize the elimination of the foam and the collection and treatment of the impurities in the foam;

[0029] (4) in step four, the distance between the mounting plate and the filter plate is reduced to crush the foam, and the impurities in the foam remain between the mounting plate and the filter plate, and the mounting plate and the filter plate press the impurities to produce a filter pressing effect, realizing solid-liquid separation;

[0030] (5) in step four, the flow direction of the sewage from the aeration tank into the transfer tank is from bottom to top, which increases the contact time of oxygen and sewage, and further improves the oxygen dissolution efficiency;

[0031] In summary, the present application has the advantages of simple structure, ingenious design, good foam removal effect and good filter plate cleaning effect, and is especially suitable for the process of treating sewage by biomass. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The process flow chart of the present application is shown in the figure;

[0033] Figure 2 The overall structure schematic diagram of the present application is shown in the figure Figure 1 ;

[0034] Figure 3 The overall structure schematic diagram of the present application is shown in the figure Figure 2 ;

[0035] Figure 4 The control assembly structure schematic diagram is shown in the figure;

[0036] Figure 5 The opening and closing mechanism a structure schematic diagram is shown in the figure;

[0037] Figure 6 The Figure 4 enlarged view of D in the figure is shown in the figure;

[0038] Figure 7 The Figure 4 enlarged view of E in the figure is shown in the figure;

[0039] Figure 8 The filter plate mechanism structure schematic diagram is shown in the figure;

[0040] Figure 9 The Figure 8 enlarged view of C in the figure is shown in the figure;

[0041] Figure 10 TheFigure 2 Enlarged view at A;

[0042] Figure 11 Schematic view of a scraping mechanism;

[0043] Figure 12 Schematic view of a cleaning assembly; Figure 3 Enlarged view at B;

[0044] Figure 13 Schematic view of a cleaning assembly in operation. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0048] Embodiment one:

[0049] As shown in the drawing, a livestock and poultry manure slurry treatment process comprises the following steps: Figure 1

[0050] Step one: sewage neutralization, acidic sewage is introduced into the neutralization reaction tank 5, and alkali solution is added into the neutralization reaction tank 5 to adjust the pH value;

[0051] Step two: aeration oxidation, after step one, the sewage in the neutralization reaction tank 5 flows into the aeration tank 11, and oxygen is introduced into the aeration tank 11 for aeration; ​

[0052] Step three: foam collection in the aeration tank, after step two, the transport assembly 20 drives the filter plate mechanism 211 to move to directly opposite the aeration tank 11, at the same time the foam scraper 221 rotates to the middle tank 12, the power assembly 41 drives the filter plate mechanism 211 to extend into the aeration tank 11, the foam enters the filter plate mechanism 211 through the filter hole 21141, then the filter plate mechanism 211 continues to move down, the limiting mechanism 212 acts to make the filter hole 21141 aperture decrease;

[0053] Step four: sewage transfer, after step three, the filter plate mechanism 211 continues to move down and contacts the opening and closing mechanism a135, thereby driving the valve a133 and the valve b134 to open the channel 131, the sewage enters the middle tank 12 through the channel 131, and the filter plate mechanism 211 moves to the bottom of the aeration tank 11 and contacts the opening and closing mechanism b136, which drives the valve b134 to close the channel 131, and at the same time, the sewage is completely transferred to the middle tank 12, then the filter plate mechanism 211 moves up again and contacts the opening and closing mechanism a135 again and drives the valve a133 to reset;

[0054] Step five: foam scraping in the middle tank, after step four, the transport assembly 20 drives the filter plate mechanism 211 and the foam scraper 221 to move, and the foam scraper 221 scrapes the foam in the middle tank 12;

[0055] Step six: equipment cleaning, after step five, the transport assembly 20 drives the filter plate mechanism 211 and the foam scraping assembly 22 to move to directly opposite the cleaning assembly 31, and the cleaning assembly 31 cleans them;

[0056] Step seven: sewage sedimentation, after step five, the sewage in the middle tank 12 is transferred to the sedimentation tank 6 for sedimentation treatment.

[0057] Further, in step three, the foam scraper 221 rotates to the bottom surface which is flush with the liquid level of the middle tank 12 under the action of the gear c222 and the rack c223;

[0058] Further, in step three, the rack b2125 engages with the gear b2124 to drive the rotating shaft 2122 to rotate, thereby driving the limiting disc 2121 to rotate, the limiting disc 2121 drives the limiting plate 2115 to move horizontally, so that the limiting strip 21151 blocks the filter hole 21141.

[0059] Further, in step four, the filter plate mechanism 211 is in contact with the rack a1352 arranged above and below in the opening and closing mechanism a135 alternately, so as to realize the forward and reverse rotation of the gear a1353, and then realize the forward and reverse rotation of the lead screw 1354, and then realize the reciprocating movement of the sleeve 1355 and the sliding rod 132, and then realize the movement of the valve a133.

[0060] Further, in step four, the filter plate mechanism 211 is in contact with the rack a1352 arranged above and below in the opening and closing mechanism a135 alternately, so as to realize the forward and reverse rotation of the gear a1353, and then realize the forward and reverse rotation of the lead screw 1354, and then realize the reciprocating movement of the sleeve 1355 and the sliding rod 132, and then realize the movement of the valve a133.

[0061] Further, in step four, the filter plate mechanism 211 is in contact with the rack a1352 arranged above and below in the opening and closing mechanism a135 alternately, so as to realize the forward and reverse rotation of the gear a1353, and then realize the forward and reverse rotation of the lead screw 1354, and then realize the reciprocating movement of the sleeve 1355 and the sliding rod 132, and then realize the movement of the valve a133.

[0062] Further, in step five, with the movement of the foam scraper 221 in the transfer tank 12, the gear d226 is engaged with the rack e227 to drive the baffle 225 to rotate, so as to facilitate the foam scraper 221 to move out of the transfer tank 12.

[0063] Further, in step six, the filter plate mechanism 211 moves down through the push rod 312 to drive the mounting seat 313 to move down, so that the moving plate 314 moves horizontally under the action of the guide rail 32, so that the mounting frame a315 and the mounting frame b316 drive the brush roller 317 to clean the filter plate mechanism 211 and the foam scraper 221 respectively.

[0064] Further, in step three and step six, under the action of the guide strip 2123, the limiting rod 2123 is disengaged from the filter plate mechanism 211, and the filter plate mechanism 211 can move up and down.

[0065] Further, in step three and step six, two groups of the filter plate mechanism 211 move up and down simultaneously through the power assembly 41.

[0066] Embodiment two:

[0067] The application also provides a sewage efficient treatment equipment:

[0068] As shown in Figure 2 and Figure 3 A sewage efficient treatment equipment, comprising a neutralization reaction tank 5 and a sedimentation tank 6, characterized in that further comprising:

[0069] An aeration tank body 1, which comprises an aeration tank 11 and a transfer tank 12 separated by a partition 10 and communicated with the neutralization reaction tank 5 and the sedimentation tank 6 respectively, the bottom of the partition 10 is provided with a control assembly 13 for controlling the on-off of the aeration tank 11 and the transfer tank 12;

[0070] A defoaming device 2, which comprises a conveying assembly 20 arranged in rotation and passing above the aeration tank body 1, a plurality of defoaming assemblies 21 arranged in array along the rotation direction of the conveying assembly 20 and capable of extending into the aeration tank 11, and a scraping assembly 22 corresponding mounted on one side of the defoaming assembly 21 and capable of moving in the transfer tank 12;

[0071] The defoaming assembly 21 comprises a sliding frame 210 arranged in sliding on the conveying assembly 20, a filter plate mechanism 211 fixedly arranged in the sliding frame 210 through a locking mechanism 213, and a limiting mechanism 212 arranged on one side of the filter plate mechanism 211 and capable of controlling the size of filter holes in the filter plate mechanism 211, the filter plate mechanism 211 is capable of abutting against the control assembly 13;

[0072] A cleaning device 3, which comprises a cleaning assembly 31 arranged on the rear side of the aeration tank body 1 along the rotation direction of the conveying assembly 20 and capable of moving along a guide rail 32 synchronously with the filter plate mechanism 211, the cleaning assembly 31 is capable of transversely moving and contacting the filter plate mechanism 211 and the scraping assembly 22; and

[0073] A power device 4, which comprises two groups of power assemblies 41 corresponding arranged with the aeration tank 11 and the cleaning assembly 31 respectively and capable of simultaneously driving two groups of defoaming assemblies 21 to move downward.

[0074] It is to be noted that the bottom of the aeration tank 11 is connected with an external oxygen supply device.

[0075] It is to be further noted that the volume of the transfer tank 12 is greater than that of the aeration tank 11, so that the liquid level in the aeration tank 11 is higher than that in the transfer tank 12, thereby enabling the scraping assembly 22 to work smoothly.

[0076] It is to be emphatically noted that the conveying assembly 20 comprises a rack 201 for carrying the sliding frame 210 and a chain wheel conveying assembly 202, the chain wheel conveying assembly 202 drives the sliding frame 210 to rotate, and under the action of the conveying assembly 20, the sliding frame 210 first moves above the aeration tank 11, and then passes through the transfer tank 12.

[0077] As Figures 4 to 7As shown, the control assembly 13 comprises a channel 131 connecting the aeration tank 11 and the transfer tank 12, a sliding rod 132 slidingly arranged on the partition plate 10, a valve a 133 fixedly installed at the end of the sliding rod 132 and located in the transfer tank 12, a valve b 134 slidingly arranged between the valve a 133 and the partition plate 10 and abuttingly arranged with the valve a 133, an opening and closing mechanism a 135 arranged in the partition plate 10 and driving the sliding rod 132 to move, and an opening and closing mechanism b 136 arranged at the bottom of the aeration tank 11 and driving the valve a 133 to move.

[0078] It should be noted that the channel 131 is arranged at the bottom of the partition plate 10, and oxygen needs to be discharged from the inside of the sewage upwards, which ensures further dissolved oxygen in the sewage.

[0079] Further, the opening and closing mechanism a 135 comprises a guide groove 1351 vertically arranged on the partition plate 10, two groups of rack a 1352 symmetrically and horizontally slidingly arranged and protruding from the sidewalls of the guide groove 1351, a gear a 1353 rotatably installed in the partition plate 10 and simultaneously meshing with the two groups of rack a 1352, a lead screw 1354 rotatably installed in the partition plate 10 and coaxially fixed with the gear a 1353, and a sleeve 1355 sleeved on the lead screw 1354 and fixedly connected with the sliding rod 132.

[0080] Further, the opening and closing mechanism b 136 comprises a transmission rod 1361 slidingly arranged at the bottom of the aeration tank 11, a limiting rod 1362 slidingly arranged in the aeration tank 11 and abuttingly arranged with the transmission rod 1361, and a wedge block 1363 slidingly arranged at the bottom of the transfer tank 12 and abuttingly arranged with the other end of the transmission rod 1361.

[0081] It should be noted that the lower rack a 1352 drives the gear a 1353 to rotate, thereby driving the upper rack a 1352 to move, thereby driving the lead screw 1354 to rotate, thereby driving the sleeve 1355 to move, thereby driving the sliding rod 132 to move, and the valve a 133 and the valve b 134 move synchronously, and the channel 131 is opened; the movement process of the upper rack a 135 is the reverse of the above process.

[0082] Further, the filter plate structure 211 extends to the bottom of the aeration tank 11 and abuts against the limiting rod 1362, and drives the wedge block 1363 to move upward through the transmission rod 1361, and the wedge block 1363 only drives the valve b 134 to move and blocks the channel 131.

[0083] AsFigure 8 And Figure 9 As shown in the figure, the filter plate mechanism 211 comprises a mounting plate 2111 slidingly arranged in the sliding frame 210, a guide block 2112 fixedly arranged on one side of the mounting plate 2111, a filter plate 2114 slidingly arranged below the mounting plate 2111 through a guide rod 2113, a limiting plate 2115 slidingly arranged above the filter plate 2114, and arranged in the sliding frame 210; the filter plate 2114 is provided with a plurality of filter holes 21141; the limiting plate 2115 comprises a plurality of limiting strips 21151, and the limiting strips 21151 are arranged in a staggered manner with the filter holes 21141.

[0084] It should be noted that when the filter plate 2114 extends below the liquid level of the aeration tank 11, the foam enters between the filter plate 2114 and the mounting plate 2111 through the filter holes 21141, and the mounting plate 2111 closes the aeration tank 11, and as the process of moving down, the pressure in the aeration tank 11 increases, which is beneficial to the dissolution of oxygen.

[0085] Further, as shown in the figure, Figure 8 And Figure 9 As shown in the figure, the limiting mechanism 212 comprises a limiting disc 2121 rotatably arranged on the filter plate 2114 and abutting against the edge of the limiting plate 2115, a rotating shaft 2122 fixedly arranged eccentrically with the limiting disc 2121 and upwardly penetrating the mounting plate 2111, a mounting table 2123 fixedly arranged on the mounting plate 2111 and surrounding the rotating shaft 2122, a gear b 2124 rotatably arranged on the mounting table 2123 and sleeved on the outside of the rotating shaft 2122 through a flat key, and a rack b 2125 slidingly arranged on the mounting table 2123 and engaged with the gear b 2124, one end of the rack b 2125 being abuttingly arranged with the pool wall of the aeration tank 11.

[0086] It should be noted that as the filter plate 2114 and the mounting plate 2111 continue to move down, the rack b 2125 is arranged in abutment with the pool wall of the aeration tank 11, the movement of the rack b 2125 drives the rotation of the gear b 2125, and in turn drives the rotation of the rotating shaft 2122, and in turn drives the rotation of the limiting disc 2121, and in turn drives the movement of the limiting plate 2115, and the limiting strips 21151 change the size of the filter holes 21141.

[0087] More preferably, the guide block 2112 moves along the guide groove 1351 and pushes the rack a 1352 to move, and after the rack b 2125 contacts the pool wall of the aeration tank 11, the guide block 2112 contacts the rack a 1352 below, so that the sewage enters the transfer tank 12; the filter plate 2114 contacts the limiting rod 1362, and then the installation plate 2111 moves downward, the gap between the installation plate 2111 and the filter plate 2114 is reduced, and the foam is broken, and then the installation plate 2111 drives the filter plate 2114 and the limiting rod 1362 to move downward.

[0088] As shown in Figure 10 and Figure 12 , the locking mechanism 213 includes two groups of support rods 2131 symmetrically arranged at the bottom of the sliding frame 210 and contactable with the installation plate 2111, and a guide bar 2132 fixedly arranged at the corresponding position of the conveying assembly 20 and the aeration tank 11 and the cleaning assembly 31 and contactable with the support rod 2131; the support rod 2131 slides along the vertical direction of the rotation direction of the conveying assembly 20.

[0089] It should be noted that when the sliding frame 210 moves to be opposite to the aeration tank 11 and the cleaning assembly 31, the support rod 2131 cooperates with the guide bar 2132 completely, the installation plate 2111 is out of contact with the support rod 2131, and the installation plate 2111 can move up and down.

[0090] Further, as shown in Figure 10 , the foam scraping assembly 22 includes a foam scraping plate 221 rotatably arranged at the front side of the sliding frame 210 along the rotation direction of the conveying assembly 20, a gear c 222 coaxially fixed with the foam scraping plate 221, a rack c 223 and a rack d 224 sequentially arranged along the rotation direction of the conveying assembly 20 and respectively driven to rotate and reset the foam scraping plate 221 by engaging with the gear c 222, a baffle 225 rotatably arranged at the side of the transfer tank 12 away from the aeration tank 11, a gear d 226 coaxially fixed on the rotating shaft of the baffle 225, and a rack e 227 and a rack f 228 sequentially arranged along the rotation direction of the conveying assembly 20 and respectively driven to rotate and reset the baffle 225 by engaging with the gear d 226.

[0091] It should be noted that when the sliding frame 210 moves to be directly above the aeration tank 11, the gear c 222 is fully engaged with the rack c 223 to drive the foam scraping plate 221 to rotate to the side of the transfer tank 12, and then during the movement of the sliding frame 210, the foam scraping plate 221 scrapes the foam on the liquid surface of the transfer tank 12.

[0092] More need to explain is, the foam scraper 221 carries out the scraping bubble, the gear d226 is engaged with the rack e227, further drives the baffle 225 rotates, the foam scraper 221 can smoothly leave the transfer pool 12, after the foam scraper is reset under the action of the rack d224, after the baffle 225 is reset under the action of the rack f228.

[0093] Need to emphasize is, the foam scraper 221 is provided as sawtooth, the attachment of foam is facilitated.

[0094] Further, as Figure 12 And Figure 13 The cleaning assembly 31 includes the bracket 311 for fixing on the guide rail 32, the push rod 312 fixedly installed on the mounting plate 2111, the mounting seat 313 elastically arranged up and down and can be in contact with the push rod 312, the moving plate 314 slidably arranged on the mounting seat 313 and moving along the guide rail 32, the mounting bracket a 315 fixedly installed on the moving plate 314 and corresponding to the filter plate mechanism 211, the mounting bracket b 316 slidably arranged on the moving plate 314 through the mounting seat and corresponding to the foam scraping assembly 22, and the brush roller 317 respectively installed on the ends of the mounting bracket a 315 and the mounting bracket b 316.

[0095] Further, the guide rail 32 includes the matching part 321 and the cleaning part 322 arranged in transition from top to bottom.

[0096] Need to be explained is that when the sliding frame 210 moves to the cleaning assembly 31, the mounting plate 2111 moves down, thereby driving the mounting seat 313 to move down through the push rod 312, the moving plate 314 moves down, and under the action of the guide rail 32, the moving plate 314 moves horizontally, thereby driving the mounting bracket a 315 and the mounting bracket b 316 to extend to the filter plate 2114 and the foam scraper 221 for cleaning, and the impurities fall into the collection bin for collection.

[0097] Need to be explained is that the power assembly 41 includes the workbench 411, the lifting device 412 arranged on the workbench 411, the connecting rod 413 fixedly connected with the power shaft of the lifting device 412, the fixed rod a 414 vertically fixedly installed on both ends of the connecting rod 413, and the fixed rod b 415 fixedly installed on the mounting plate 2111 and slidably combined with the fixed rod a 414.

[0098] Need to be explained is that when the locking mechanism 213 is separated from the mounting plate 2111, the fixed rod a 414 and the fixed rod b 415 are in a combined state, so the filter plate mechanism 211 will not freely fall.

[0099] More specifically, the lifting device 412 drives the filter plate mechanism 211 above the aeration tank 11 to move down at the same time as driving the filter plate mechanism 211 on one side of the cleaning assembly 31 to move down.

[0100] Working process of the equipment:

[0101] The sewage in the neutralization reaction tank 5 is introduced into the aeration tank 11, and then oxygen is introduced into the aeration tank 11 for aeration treatment. Under the action of the conveying assembly 20, the sliding frame 210 drives the filter plate mechanism 211 to move to the top of the aeration tank 11. The fixed rod a 414 and the fixed rod b 415 are spliced, and the support rod 2131 and the guide strip 2132 are completely matched. The mounting plate 2111 is separated from the support rod 2131, and the gear c 222 is completely engaged with the rack c 223 to drive the foam scraper 221 to rotate to one side of the transfer tank 12. Then the lifting device 412 drives the mounting plate 2111 to move downward, and the mounting plate 2111 and the filter plate 2114 enter the inside of the aeration tank 11. Bubbles enter the space between the filter plate 2114 and the mounting plate 2111 through the filter hole 21151. Then the mounting plate 2111 and the aluminum plate 2114 continue to move downward. The rack b 2125 is in contact with the wall of the aeration tank 11, and the rack b 2125 moves to drive the gear b 2125 to rotate, thereby driving the shaft 2122 to rotate, thereby driving the limiting disc 2121 to rotate, thereby driving the limiting plate 2115 to move. The limiting strip 21151 reduces the size of the filter hole 21141. At the same time, the guide block 2112 drives the gear a 1353 to rotate through the rack a 1352 below, thereby driving the rack a 1352 above to move, thereby driving the lead screw 1354 to rotate, thereby driving the sleeve 1355 to move, thereby driving the sliding rod 132 to move. The valve a 133 and the valve b 134 move synchronously, the channel 131 is opened, and the sewage in the aeration tank 11 is pressed into the transfer tank 12. Then the mounting plate 2111 and the filter plate 2114 continue to move downward, and the filter plate 2114 is in contact with the limiting rod 1362. Then the gap between the mounting plate 2111 and the filter plate 2114 is reduced, and the foam is broken. Then the mounting plate 2111 drives the filter plate 2114 and the limiting rod 1362 to move downward. The limiting rod 1362 drives the wedge block 1363 to move upward through the transmission rod 1361. The wedge block 1363 only drives the valve b 134 to move and blocks the channel 131. Then the lifting device 232 drives the mounting plate 2111 and the aluminum plate 2114 to move upward. The guide block 2112 is in contact with the rack a 135 above, thereby resetting the valve a 133. Then the lifting device 412 continues to move upward to the mounting plate 2111 and the support rod 2131 in a matchable state. Then the conveying assembly 20 drives the sliding frame 210 to move. The support rod 2131 moves to fix the mounting plate 2111 under the action of the guide strip 2132, and the foam scraper 221 moves in the transfer tank 12.The gear d226 meshes with the rack e227, thereby driving the baffle plate 225 to rotate, the foam scraper 221 can smoothly leave the transfer tank 12, then the foam scraper resets under the action of the rack d224, then the baffle plate 225 resets under the action of the rack f228, then the sewage in the transfer tank 12 flows into the sedimentation tank 6 for sedimentation, next the sliding frame 210 moves to one side of the cleaning assembly 31, the fixed rod a414 and the fixed rod b415 are spliced again, the supporting rod 2131 is loosened from the constraint of the mounting plate 2111 under the action of the guide strip 2132, then the lifting device 412 drives the mounting plate 2111 to move downward, at the same time the push rod 312 drives the mounting seat 313 to move downward, the moving plate 314 moves downward accordingly, and under the action of the guide rail 32, the moving plate 314 moves transversely, thereby driving the mounting frame a315 and the mounting frame b316 to stretch into the filter plate 2114 and the foam scraper 221, the brush roller 317 performs corresponding cleaning, impurities fall into the collection bin for collection, after cleaning is completed, the cleaning assembly 31 and the filter plate mechanism 211 reset.

Claims

1. A process for treating livestock and poultry manure biogas slurry, characterized in that, Includes the following steps: Step 1: Wastewater neutralization. Acidic wastewater is introduced into the neutralization reaction tank (5), and alkaline solution is added to the neutralization reaction tank (5) to adjust the pH value. Step 2: Aeration oxidation. After step 1, the sewage in the neutralization reaction tank (5) flows into the aeration tank (11), and oxygen is introduced into the aeration tank (11) for aeration. Step 3: Foam collection. After step 2, the transport component (20) drives the filter plate mechanism (211) to move to face the aeration tank (11). At the same time, the foam scraper (221) rotates into the transfer tank (12). The power component (41) drives the filter plate mechanism (211) to extend into the aeration tank (11). The foam enters the filter plate mechanism (211) through the filter holes (21141). Then the filter plate mechanism (211) continues to move downward. The limiting mechanism (212) reduces the diameter of the filter holes (21141). Step 4: Sewage transfer. After step 3, the filter plate mechanism (211) continues to move downward and comes into contact with the opening and closing mechanism a (135), thereby driving valve a (133) and valve b (134) to open the channel (131). The sewage enters the transfer tank (12) through the channel (131). When the filter plate mechanism (211) moves to the bottom of the aeration tank (11), it comes into contact with the opening and closing mechanism b (136), transferring all the sewage to the transfer tank (12) while driving valve b (134) to close the channel (131). Then the filter plate mechanism (211) moves upward and comes into contact with the opening and closing mechanism a (135) again, driving valve a (133) to reset. Step 5: Foam removal. After step 4, the conveying component (20) drives the filter plate mechanism (211) and the foam scraper (221) to move, and the foam scraper (221) scrapes the foam in the transfer tank (12). Step Six: Equipment Cleaning. After Step Five, the conveying component (20) drives the filter plate mechanism (211) and the foam scraping component (22) to move to face the cleaning component (31), and the cleaning component (31) cleans both of them. Step 7: Wastewater sedimentation. After step 5, the wastewater in the transfer tank (12) is introduced into the sedimentation tank (6) for sedimentation treatment.

2. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step three, the foam scraper (221) rotates just under the action of gear c (222) and rack c (223) until its bottom surface is flush with the liquid surface of the transfer tank (12).

3. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step three, the rack b (2125) meshes with the gear b (2124) to drive the rotating shaft (2122) to rotate, which in turn drives the limiting disk (2121) to rotate. The limiting disk (2121) drives the limiting plate (2115) to move laterally, so that the limiting strip (21151) blocks the filter hole (21141).

4. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step four, the filter plate mechanism (211) and the rack a (1352) set up on the upper and lower sides of the opening and closing mechanism a (135) alternately abut against each other, thereby realizing the forward and reverse rotation of the gear a (1353), and thus realizing the forward and reverse rotation of the lead screw (1354), thereby realizing the reciprocating movement of the sleeve (1355) and the sliding rod (132), and thus realizing the movement of the valve a (133).

5. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step four, the filter plate mechanism (211) abuts against the limiting rod (1362), thereby driving the transmission rod (1361) to move, thereby driving the wedge block (1363) to move upward and drive the valve b (134) to close the channel (131), while the valve a (133) remains stationary.

6. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step four, the aeration tank (11) and the transfer tank (12) are separated by a partition (10), and the channel (131) is opened below the partition (10).

7. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step five, as the foam scraper (221) moves within the transfer pool (12), the gear d (226) meshes with the rack e (227) to drive the baffle (225) to rotate, facilitating the removal of the foam scraper (221) from the transfer pool (12).

8. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In step six, the filter plate mechanism (211) moves down and drives the mounting base (313) to move down via the push rod (312), thereby causing the moving plate (314) to move laterally under the action of the guide rail (32), so that the mounting frame a (315) and the mounting frame b (316) respectively drive the brush roller (317) to clean the filter plate mechanism (211) and the foam scraper (221).

9. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In steps three and six, under the action of the guide bar (2132), the limiting rod (1362) disengages from the filter plate mechanism (211), and the filter plate mechanism (211) can move up and down.

10. The livestock and poultry manure biogas slurry treatment process according to claim 1, characterized in that, In steps three and six, the two sets of filter plate mechanisms (211) move up and down simultaneously via the power assembly (41).

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