CN216457156U - Pig house and filtering ponds for blowdown thereof - Google Patents

Abstract

The utility model relates to a pigsty and a filtering tank for sewage discharge thereof, wherein the filtering tank comprises a tank body which is provided with an input cavity, a filtering structure and a discharge cavity; the input cavity is used for receiving sewage to be treated; the filtering structure is arranged between the input cavity and the discharge cavity and is used for filtering sewage flowing from the input cavity to the discharge cavity; the discharge cavity is communicated with a pumping and discharging pipeline, and a pumping and discharging pump used for pumping out the sewage in the discharge cavity by a sewage pressurizing pump is arranged on the pumping and discharging pipeline. For the pigsty column position unit with lower fecal sewage pressure, when the intermittent small-amount mode is adopted for sewage disposal, the drainage pipeline is utilized to pressurize the fecal sewage and pump the fecal sewage backwards to a corresponding area, such as an environment-friendly treatment area, so that a small amount of sewage can still be conveyed to a corresponding target area, and the integral treatment is ensured.

Description

Pig house and filtering ponds for blowdown thereof

Technical Field

The present invention relates generally to the field of swine technology. More particularly, the utility model relates to a pigsty and a filtering tank for a sewage discharge pipe thereof.

Background

The pig house comprises a column unit, wherein the column unit comprises a dung leaking plate, a pig moving area is arranged above the dung leaking plate and generally called as an upper plate, and a collecting tank structure is formed below the dung leaking plate and generally called as a lower plate. The pig only moves on the plate, and the discharged excrement falls into the plate for temporary storage and then is discharged to a treatment area through a sewage discharge system for environment-friendly treatment. At present, most of domestic large-scale pig farms mostly adopt a water-soaking manure process for pollution discharge, wherein the water-soaking manure process is a manure cleaning process for injecting a certain amount of water into a manure discharge ditch in a livestock and poultry house, discharging manure, urine, washing and feeding management water into the manure ditch below a manure leaking plate, storing for a certain time, opening a manure plug at a manure outlet at the bottom after the manure ditch is filled, and discharging manure water in the ditch.

The lower part of pig house column position unit has the collecting pit structure that is used for collecting the liquid dung, and the bottom of collecting pit structure sets up the drain, and sewage pipes is connected to the drain, and excrement stopper has been filled up to excrement discharge mouth department. When the pig house adopting the water-soaking manure process is used for sewage disposal, the manure plug is usually pulled out for sewage disposal after one batch of pigs are raised, the manure water flows into the sewage disposal pipeline in a centralized manner through the sewage disposal port below the plate, and the manure water enters the transfer pool quickly under the pressure action of a large amount of manure water, so that the environment-friendly area is finally reached. After the pollution discharge operation is finished, manually brushing the ring for subsequent use.

Above-mentioned blowdown mode can cause concentrated blowdown in scale pig farm, and the excrement stopper of the column department unit in a pig house is pulled out and when carrying out the blowdown, can cause the excrement of side pig house unit to fill in by the jack-up and become cluster excrement, string gas because of the excrement discharge pressure is too big, and the blowdown volume is too big in the short time also appears easily in addition, influences transfer and environmental protection and handles. Corresponding to the too big concentrated blowdown problem of blowdown of discharge, can adopt the mode of the little blowdown of intermittent type to solve, the liquid dung pressure under the little blowdown mode is less relatively, is difficult to cause the influence to the blowdown of side pig house column position unit, but the liquid dung that this kind of pressure is less is difficult to again carry out corresponding processing to the transfer pond, the environmental protection district apart from far away from.

SUMMERY OF THE UTILITY MODEL

The utility model provides a filtering tank for pigsty sewage discharge, which is used for solving the technical problem that when a column unit of a pigsty discharges a small amount of sewage intermittently, the pressure of liquid dung is low and the liquid dung is difficult to flow to an environment-friendly area with a long distance. Meanwhile, the utility model also provides a pigsty using the filter tank.

In order to solve the problems, the filtering tank for the pigsty pollution discharge adopts the following technical scheme: a filter tank for pigsty sewage discharge comprises a tank body, a filter structure and a discharge cavity, wherein the tank body is provided with an input cavity, the filter structure and the discharge cavity; the input cavity is used for receiving sewage to be treated; the filtering structure is arranged between the input cavity and the discharge cavity and is used for filtering sewage flowing from the input cavity to the discharge cavity; the discharge cavity is communicated with a pumping and discharging pipeline, and a pumping and discharging pump used for pumping out the sewage in the discharge cavity by a pressure pump is arranged on the pumping and discharging pipeline.

The beneficial effects are that: in the filter tank provided by the utility model, a filtering structure is arranged in front of the input cavity and the discharge cavity and is used for filtering sewage to be treated, and after filtering, the sewage is pumped away by a pumping pipeline provided with a pumping and discharging pump. For the pigsty column position unit with small fecal sewage pressure, when intermittent small-amount mode is adopted for sewage disposal, the fecal sewage is pressurized and pumped backwards to a corresponding area such as an environment-friendly treatment area by utilizing the pumping and draining pipeline, so that a small amount of sewage can still be conveyed to a corresponding target area, and the integral treatment is ensured.

As a further improvement, the filtering structure is a vertically arranged filtering plate which divides the inner cavity of the tank body into the input cavity and the discharge cavity which are horizontally and sequentially arranged.

As a further improvement, the filter plate is detachably fixedly mounted in the tank body.

As a further improvement, the input cavity extends along the up-and-down direction, and the bottom of the input cavity is provided with a horizontal filter plate which is used for fishing the dirt accumulated in the input cavity when the dirt is taken out upwards.

As a further improvement, the bottom surface of the input chamber is an inclined bottom surface inclined downward toward the discharge chamber to guide the sewage flow toward the discharge chamber.

As a further improvement, the pumping and discharging pipeline comprises a main pumping and discharging pipeline and an auxiliary pumping and discharging pipeline, a pumping and discharging pump on the main pumping and discharging pipeline is a main pumping and discharging pump, and a pumping and discharging pump on the auxiliary pumping and discharging pipeline is an auxiliary pumping and discharging pump; the filter tank also comprises a liquid level detection device and a controller, wherein the liquid level detection device is used for detecting the liquid level height of the sewage in the discharge cavity; the controller is connected with the liquid level detection device to receive the detection result of the liquid level detection device, and the controller is connected with the main pump drainage pump and the auxiliary pump drainage pump for controlling the main pump drainage pump to work when the liquid level of the discharge cavity is in the lower part set liquid level interval, and controlling the main pump drainage pump and the auxiliary pump drainage pump to work when the liquid level of the discharge cavity is in the upper part set liquid level interval.

As a further improvement, the liquid level detection device is an ultrasonic liquid level detector.

The technical scheme adopted by the pigsty provided by the utility model is as follows: a pig house comprising: a column unit having a collecting tank structure below for collecting the liquid dung; the overflow sewage channel is provided with an inlet and an outlet, the inlet is communicated with the inner cavity of the collecting tank structure, the inlet is positioned above the bottom of the collecting tank structure, and the outlet is communicated with a sewage pipeline; the filtering ponds adopt the scheme of any one of the filtering ponds for pig house sewage, and an input cavity of a pond body of the filtering ponds for pig house sewage passes through the sewage discharge pipeline and the overflow sewage discharge channel so that liquid dung in the collecting pond structure flows into the input cavity through the overflow sewage discharge channel and the sewage discharge pipeline when the liquid dung rises to a set liquid level height.

As a further improvement, the bottom of the collecting tank structure is provided with a sewage outlet, the overflow sewage channel is formed by filling and sealing an overflow sewage pipe of the sewage outlet, the overflow sewage pipe extends along the up-and-down direction, the overflow sewage pipe is provided with an upper inlet and a lower outlet, the upper inlet forms the inlet of the overflow sewage channel, and the lower outlet forms the outlet of the overflow sewage channel.

As a further improvement, the upper part of the overflow sewage draining pipe is provided with a bent pipe structure with a downward opening, the bent pipe structure is provided with a downward bent pipe section which is arranged in a suspending way, and the lower port of the downward bent pipe section forms the upper inlet.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic structural view of a pigsty according to an embodiment 1 of the present invention;

FIG. 2 is a top plan view of the pig house shown in FIG. 1;

FIG. 3 is a schematic diagram of a single column unit of FIG. 1;

FIG. 4 is a schematic structural view of the overflow drain of FIG. 3;

FIG. 5 is a schematic structural view of the filtration tank of FIG. 1 (top cover plate not shown);

fig. 6 is a front view of the filtration tank shown in fig. 5.

FIG. 7 is a schematic structural view of an overflow drain pipe in example 2 of a pigsty according to the present invention;

FIG. 8 is a front view of the overflow drain of FIG. 7;

fig. 9 is an enlarged view of fig. 8 at a.

Description of reference numerals:

in fig. 1 to 6: 1. an overflow drain pipe; 11. a bent pipe structure; 110. an upper inlet; 12. filling a pipe section; 121. an annular housing; 122. a cement filling structure; 123. supporting the limiting ring; 13. a straight pipe section; 2. a collection tank structure; 3. setting the height of the liquid level; 4. a dung leaking plate; 5. a sewage draining outlet; 100. a column unit; 200. a filtration tank; 201. a tank body; 202. an input chamber; 2021. inclining the ground; 203. a discharge chamber; 204. a liquid level detection device; 205. a main pumping line; 206. a main pump; 207. a filter plate; 208. auxiliary pumping and draining pipelines; 209. an auxiliary pump; 300. branch pipelines; 400. a main pipeline.

In fig. 7 to 9: 13. a straight pipe section; 123. supporting the limiting ring; 21. a cantilever tube; 22. a first bend pipe; 23. a second bend pipe; 24. a sealing packing ring; 25. a middle connecting pipe; 26. pipe sleeve; 27. a reducer union; 28. an upper fixing ring; 29. and a lower fixing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1 of the pig house provided by the present invention:

as shown in fig. 1 to 6, the pigsty includes a plurality of field units 100, and the plurality of field units 100 may be arranged in the transverse direction and the longitudinal direction. Each column unit 100 is provided with a dropping board 4, and holes are arranged on the dropping board 4 for dropping liquid dung. The column unit 100 forms a pig activity area above the dung-leaking plate 4, which is mostly called an on-board or on-board unit in practice, and has a collecting basin structure 2 below, which is called an under-board or under-board unit in practice, where the collecting basin structure is used for collecting dung. The excrement of the pig, the disinfection and cleaning water and the like fall into the collecting tank structure through the excrement leaking plate 4 and are discharged through the corresponding sewage discharge pipeline. The sewage discharge pipeline guides the liquid dung to the filter tank, the liquid dung flows to the environment-friendly area after being filtered by the filter tank, the solid-liquid separation equipment is arranged in the environment-friendly area, the liquid dung flows into the black membrane biogas liquid tank after passing through the solid-liquid separation equipment tank, and the biogas liquid is returned to the field after being fermented.

The bottom of the collecting tank structure 2 can be provided with one or more local depressions, the bottom of each depression can be provided with a sewage outlet 5, the sewage outlet 5 is connected with a sewage pipeline, and the sewage pipeline is positioned outside the collecting tank structure. In fact, the sewage pipes are divided into a main pipe 400 and branch pipes 300, the sewage outlet 5 of each column unit 100 is connected to the branch pipes 300, and a plurality of branch pipes 300 are connected to one main pipe 400, and are connected to the filtering tank 200 through the main pipe 400, and are filtered by the filtering tank 200. Herein, a water treatment structure in which raw water or wastewater is passed through a filter medium to remove insoluble substances suspended in the solution. Thus, the liquid dung in the collecting tank structure 2 can flow into the filtering tank 200 through the sewage pipeline, and then is transferred into the environment-friendly treatment area after being filtered by the filtering tank 200.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 3, an overflow drain pipe 1 is inserted into a drain opening 5 at the bottom of the collecting tank structure 2, and the overflow drain pipe 1 is plugged with the sealed drain opening 5, so that the liquid dung is discharged through the overflow drain pipe 1.

The overflow drain pipe 1 is integrally extended in the up-down direction to form an overflow drain passage. The overflow drain 1 has an upper inlet 110 and a lower outlet, the upper inlet 110 of the overflow drain 1 forming the inlet of the overflow sewage channel, and the lower outlet of the overflow drain 1 forming the outlet of the overflow sewage channel. The upper inlet 110 of the overflow drain 1 is specifically communicated with the inner cavity of the collecting tank structure, so that the inlet of the overflow drain channel is correspondingly communicated with the inner cavity of the collecting tank structure 2. The upper inlet 110 of the overflow sewage pipe 1 is positioned above the pool bottom, so that the inlet of the overflow sewage channel is positioned above the pool bottom of the collecting pool structure, and the overflow sewage can be conveniently realized.

Because the overflow sewage draining pipe 1 is directly inserted in the sewage draining port 5, the lower outlet of the overflow sewage draining port 5, namely the outlet of the overflow sewage draining passage, is communicated with the corresponding sewage draining pipeline. In this way, when the liquid manure in the collecting tank structure 2 rises to the set liquid level 3, as shown by the dotted line in fig. 3, the liquid manure can flow into the sewage pipes through the overflow sewage pipe 1, forming a small amount of intermittent sewage. The liquid dung amount of each time of pollution discharge is small, the pollution discharge pressure is small, excessive pressure cannot be caused to subsequent sewage treatment, the pollution discharge operation of the side column unit 100 cannot be easily influenced, and the phenomenon that liquid dung or gas is mixed cannot be easily caused.

As shown in fig. 3 and 4, the overflow drain 1 has a straight pipe section 13, the upper portion of the overflow drain 1 has an elbow structure 11, the elbow structure 11 is fixedly arranged at the upper end of the straight pipe section 13 and is communicated with the straight pipe section 13, and the opening of the elbow structure 11 is arranged downwards to form an inverted U-shape. For convenient manufacture, the overflow drain pipe 1 can adopt a PVC pipeline.

The lower port of the straight pipe section 13 forms the lower outlet of the overflow sewage discharge pipe 1 to be communicated with a sewage discharge pipeline. The lower part of the straight pipe section 13 is provided with a filling pipe section 12, and when the overflow sewage draining pipe 1 is inserted into the sewage draining outlet 5, the filling pipe section 12 fills and seals the sewage draining outlet 5.

In this embodiment, the stuffer pipe section 12 comprises an annular housing 121, and a cement filling structure 122 is disposed within the annular housing 121. And, a support limit ring 123 is fixedly arranged at the upper end edge of the annular housing 121, and the support limit ring 123 is supported and arranged at the bottom of the collecting tank structure 2. When the overflow sewage discharge pipe 1 is inserted into the sewage discharge port 5, the supporting and limiting ring 123 is supported at the bottom of the collecting tank structure to form stopping and limiting.

Considering the corrosiveness of the liquid dung in the collecting tank structure 2, the annular shell 121 is filled with cement, so that the liquid dung is more foam-resistant and can be prevented from being damaged after being used for a long time.

The filling pipe section 12 herein may be specifically formed by sleeving an annular casing 121 on a lower portion of the straight pipe section 13, where the annular casing 121 includes an inner circumferential wall, an outer circumferential wall and an annular bottom wall, the inner circumferential wall is tightly fitted and fixed with the straight pipe section 13, an upper end edge of the outer circumferential wall has an annular step structure, and steps of the annular step structure face downward. An annular housing 121 is integrally formed at the inner peripheral wall, the outer peripheral wall and the annular bottom wall, and an upper portion of the annular housing 121 is designed to be open to facilitate filling of cement into the inner cavity of the annular housing 121. According to actual needs, a cover body can be added at the upper opening of the annular shell 121. Of course, as another application scenario, the cover body can be omitted, and the cement filling structure can be directly exposed.

In fact, when cement is filled, a squeezing force is applied to the inner peripheral wall at the same time, and the assembling strength of the annular shell 121 and the straight pipe section 13 can be effectively enhanced,

In this embodiment, the elbow structure 11 at the upper part of the overflow drain 1 has a downwardly bent pipe section arranged in an overhanging manner, and the lower port of the downwardly bent pipe section forms the upper inlet 110 of the overflow drain 1. The pipe bend 11 is here arranged such that the straight pipe section 13 is only entered for draining when the liquid level of the liquid manure rises to a set liquid level 3, shown in fig. 3 by a dashed line as a set page height, in particular over an inner bend of the pipe bend 11. Thus, when the liquid dung does not rise to the set liquid level 3, the liquid dung in the collecting tank structure of each column unit 100 is always sealed in the collecting tank structure, and no liquid dung is formed in a string by the adjacent column units 100. Of course, in order to reduce the pollution discharge problem caused by the fluctuation of the liquid dung, the downward bending pipe section can extend downwards,

the overflow drain 1 is based on the principle of a communicating vessel, when the liquid level under the plate rises to the set height, the liquid dung overflows through the bent pipe structure 11 and enters the straight pipe section 13 and flows to the drain pipe through the straight pipe section 13. Flows into the filter tank 200 through a sewage discharge pipeline, is filtered by the filter tank 200 and then is sent into an environment-friendly area through a sealed pipeline.

The structure of the filtering tank is shown in fig. 5 and fig. 6, the filtering tank 200 comprises a tank body 201, an opening is arranged at the top of the tank body, a vertically arranged filtering plate 207 is arranged in the tank body, the filtering plate divides an inner cavity of the tank body into an input cavity 202 and a discharge cavity 203 which are horizontally and sequentially arranged, and the filtering plate 207 is arranged between the input cavity and the discharge cavity as a filtering structure and is used for filtering sewage flowing from the input cavity to the discharge cavity.

The input cavity 203 is used for receiving liquid dung to be treated, an input port communicated with the input cavity is arranged on the tank body 201, and the main pipeline 400 of the sewage discharge pipeline is in butt joint communication with the input port so as to input the liquid dung into the input cavity.

In this embodiment, the inside of cell body 201 sets up along the grafting guide slot of upper and lower direction extension, and the removable grafting in the grafting guide slot is equipped with filter 207, and filter detachably fixed mounting is in the cell body. The filter plate can be a glass fiber reinforced plastic grid plate, so that thick excrement can be conveniently filtered.

The input cavity and the discharge cavity extend along the up-down direction, and the input cavity, the filter plate and the discharge cavity are sequentially and horizontally arranged along the left-right direction. Also, the bottom surface of the input chamber 202 is an inclined bottom surface 2021 inclined downward toward the discharge chamber to guide the sewage to flow toward the discharge chamber.

In addition, since the thick excrement is filtered by the filter plate 207, a large amount of filth is collected in the input chamber, and a horizontal filter plate for fishing out the filth collected in the input chamber when it is taken out upward is provided at the bottom of the input chamber for easy cleaning. When in actual use, the pull rope can be connected on the horizontal filter plate so as to conveniently take out the horizontal filter plate upwards.

The horizontal filter plate can also adopt a glass fiber reinforced plastic grating plate, and at the moment, as another taking-out application mode, the glass fiber reinforced plastic grating plate can be hooked and taken out by utilizing the vertical rod with the hook arranged at the bottom.

The liquid dung is filtered by the filter board 207 and enters the discharge cavity 203, which is connected with a pump-drainage pipeline, and a pump-drainage pump is arranged on the pump-drainage pipeline and is used for pumping out the liquid dung in the discharge cavity by a pressure pump. In this embodiment, the pumping and discharging pipeline specifically includes a main pumping and discharging pipeline 205 and an auxiliary pumping and discharging pipeline 208, the pumping and discharging pump on the main pumping and discharging pipeline 205 is a main pumping and discharging pump 206, the pumping and discharging pump on the auxiliary pumping and discharging pipeline 208 is an auxiliary pumping and discharging pump 209, and a check valve and a ball valve are further respectively disposed on the main pumping and discharging pipeline 205 and the auxiliary pumping and discharging pipeline 208, where the check valve is used for placing backflow of liquid dung, the ball valve is used as an inspection valve, and the ball valve is opened at ordinary times, is closed when the pumping and discharging pump is inspected, and can also be used for preventing backflow of liquid dung.

In addition, the main pump 206 of the present embodiment is a cutting shallow sewage pump for pumping the liquid dung and cutting the garbage in the liquid dung. And the auxiliary pumping and draining pump 209 selects two flow pumps for pumping the liquid dung.

To improve the working efficiency, attention is paid to control the operation of the main pump 206 and the auxiliary pump 209. In this embodiment, the filtering ponds still include liquid level detection device 204 and controller, and this liquid level detection device 204 is arranged in detecting the sewage liquid level height in the discharge chamber, specifically chooses ultrasonic liquid level detector for use, and this ultrasonic liquid level detector passes through bracing piece fixed mounting on the cell body, and above-mentioned controller is connected with ultrasonic liquid level detector in order to accept ultrasonic liquid level detector's testing result, and the controller is connected with main pump drainage pump, supplementary pump drainage pump control to according to the corresponding pump drainage pump work of discharge chamber liquid level control.

Specifically, set up three liquid level in discharge chamber 203, from top to bottom be last liquid level and lower liquid level in proper order, the interval between two liquid levels forms the lower part and sets for the liquid level interval, the interval on last liquid level upper portion forms the upper portion and sets for the liquid level interval, when discharge chamber liquid level is in the lower part and sets for the liquid level interval in, the work of main pump drainage pump of controller control, that is to say, when the liquid level is less than lower liquid level, main pump drainage pump stop work, only when the liquid level crosses lower liquid level, main pump drainage pump just works. When the liquid level of the discharge cavity is in the upper set liquid level interval, the controller controls the main pump and the auxiliary pump to work, at the moment, the system judges that more liquid dung exists in the discharge cavity and the liquid level is higher, the main pump and the auxiliary pump need to be started simultaneously, and the pumping efficiency is improved. Of course, when the liquid level drops to the upper liquid level, the auxiliary pumping and discharging pump stops working, the main pumping and discharging pump continues working, and when the liquid level continues to drop below the lower liquid level, the main pumping and discharging pump also stops working, and the operation is circulated.

When the filter tank is applied specifically, the whole filter tank can adopt a brick structure and is provided with a concrete structure so as to improve the strength and the protection. A top cover plate is configured to be hermetically shielded in correspondence with the input chamber and the discharge chamber having open tops. The top cover plate is manufactured according to the actual size of the filter tank, a square tube can be used for manufacturing a frame, and then the black film is wrapped and fixed.

Different from the prior art that the fecal plug is pulled out to carry out centralized sewage discharge, the overflow sewage discharge pipe forms an overflow sewage discharge mode, as long as the fecal sewage rises to exceed the set liquid level height, a small amount of continuous overflow can be formed, the fecal sewage is stabilized below the set liquid level height, liquid seal is caused, and no air leakage or feces leakage occurs in two adjacent column units. And, because the liquid dung of overflow is the intermediate level liquid dung, be difficult to block up the pipeline, can accomplish not brush the circle under the board, the water economy resource reduces labour cost and improves the production time, increases the stability of production operation, practices thrift a large amount of costs for the scale breed enterprise.

And moreover, the overflow sewage draining channel is adopted to intermittently drain a small amount, so that a small amount of advanced filtration can be conveniently carried out by utilizing the filter tank, and the filtered liquid dung is timely pumped and drained to the environment-friendly area by utilizing the pumping and draining pump so as to carry out subsequent treatment. The liquid dung flows into a black film biogas liquid pool after passing through solid-liquid separation equipment in the environmental protection area, and the biogas liquid is returned to the field after fermentation, so that the full resource utilization is realized.

Example 2 of the pig house provided by the present invention:

the difference from example 1 is mainly that: the structure of the overflow drain pipe.

In the embodiment 1, the lower part of the overflow sewage draining pipe is directly plugged into the sewage draining port by the plugging pipe section to form plugging sealing.

In this embodiment, the structure of the overflow sewage pipe is as shown in fig. 7 to fig. 9, a sealing packing ring 24 is fixedly sleeved at the lower part of the overflow sewage pipe, the sealing packing ring 24 is made of a silica gel material, and when the overflow sewage pipe is inserted into a sewage outlet, the sewage outlet is filled with the sealing packing ring 24.

Of course, as another application scenario, the sealing packing ring may be made of other rubbers as long as effective sealing is ensured.

As shown in fig. 7 to 9, the overflow sewage draining pipe also comprises a straight pipe section 43 and an elbow structure, wherein the elbow structure comprises two elbows, a middle connecting pipe 25 and an overhanging pipe 21, the two elbows comprise a first elbow 22 and a second elbow 23, and as shown in fig. 6, the overhanging pipe 21, the first elbow 22, the middle connecting pipe 25 and the second elbow 23 are connected in sequence to form an elbow section. The upper end of the straight tube section 13 is sealingly fitted in abutment with the lower end of the second elbow 23. A pipe sleeve 26 is fixedly connected to the lower end of the straight pipe section 13 through a reducer union 27. The pipe sleeve 26 is sleeved with a support limit ring 123, an upper fixing ring 28, a sealing packing ring 24 and a lower fixing ring 19 from bottom to bottom in sequence, the sealing packing ring 24 is clamped and fixed from top to bottom by the upper fixing ring 28 and the lower fixing ring 29, wherein the lower fixing ring can be fixedly assembled with the pipe sleeve 26 in a threaded connection mode or a close fit assembling mode.

The support limit ring 123 is located above the sealing packing ring 24, and is used for supporting and arranging at the bottom of the collecting tank structure to prevent the overflow sewage pipe from being pressed down excessively.

In addition, as shown in fig. 9, the outer peripheral surface of the sealing packing ring 24 is a conical surface structure with a large top and a small bottom, so that the sealing packing ring is in a circular truncated cone structure, and is conveniently sealed and packed into the sewage draining outlet from top to bottom. The conical surface is convenient for insertion and can improve the sealing effect.

Example 3 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in embodiment 1, the overflow drain channel is formed of an overflow drain pipe extending in an up-and-down direction.

In this embodiment, the overflow trapway can also be formed by an overflow trapway that is arranged horizontally. At this moment, also can save special overflow blow off pipe, but directly set up lateral wall overflow channel in order to realize the overflow blowdown on the lateral wall of blowdown pond structure, this lateral wall overflow channel should be located the bottom of the pool top of collecting pit structure, and this lateral wall overflow channel uses as overflow blowdown channel, and its design is in setting for liquid level height department. The inlet of the side wall overflow channel is communicated with the inner cavity of the collecting tank structure, and the outlet of the side wall overflow channel is positioned on the outer side surface of the collecting tank structure and is used for being connected with a sewage discharge pipeline.

When the collecting tank is used, when the liquid dung of the collecting tank structure rises to a set liquid level height, the liquid dung overflows through the side wall overflow channel.

Example 4 of the pigsty provided by the utility model:

the difference from example 1 is mainly that:

in the embodiment 1, the filter plate is a glass fiber reinforced plastic grid plate, and the filter plate is detachably and fixedly arranged in the tank body. After using for a period of time, can dismantle the filter, put the filter back to the cell body after the clearance.

In this embodiment, the filter also can adopt the filter screen structure, consequently is the thick excrement of filtration, and the bulk hardness of filter screen can be great a little.

Example 5 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in embodiment 1, the upper part of the overflow sewage discharge pipe is provided with a bent pipe structure so as to better block liquid dung in the collecting tank structure.

In this embodiment, the whole L shape bending structure that is of overflow blow off pipe, L shape bending structure have long pipe section and short pipe section, and vertical extension is followed to long pipe section, and short pipe section extends along horizontal level, and the overhang opening of short pipe section is as the upper portion entry of overflow blow off pipe, and the bottom opening of long pipe section is as the lower part export of overflow blow off pipe.

Or the overflow sewage discharge pipe directly adopts a straight pipe extending vertically, the top opening of the straight pipe is the upper inlet of the overflow sewage discharge pipe, and the bottom opening of the straight pipe is the lower outlet of the overflow sewage discharge pipe. The lower part of the straight pipe is provided with a packing pipe section, so that the packing pipe section is conveniently sealed and packed in a sewage discharge outlet at the bottom of the collecting tank structure.

Example 6 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in the embodiment 1, the straight pipe section of the overflow sewage draining pipe vertically extends up and down.

In this embodiment, the straight pipe section of the overflow drain pipe may also be inserted into the collecting tank structure in an inclined manner, as long as a set liquid level height is ensured to ensure effective overflow.

Example 7 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in embodiment 1, the input chamber and the discharge chamber are arranged in this order in the horizontal direction.

In this embodiment, the input chamber and the discharge chamber may also be arranged in the up-down direction, the input chamber being located above the discharge chamber, the filter structure being located at the bottom of the input chamber, after being filtered by the filter structure, the liquid dung falling into the discharge chamber and being pumped by the corresponding pumping line.

Example 8 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in embodiment 1, the pumping duct includes a main pumping duct and an auxiliary pumping duct, and one or more auxiliary pumping ducts may be provided according to time requirements.

In this embodiment, only one pumping pipeline may be arranged, and a pumping pump is disposed on the pumping pipeline, and the pumping pump works when the liquid dung in the drainage cavity reaches a set liquid level and stops working when the liquid dung is lower than the set liquid level.

Example 9 of the pig house provided by the present invention:

the difference from example 1 is mainly that:

in example 1, the liquid level detection device used an ultrasonic liquid level sensor.

In this embodiment, the liquid level detection device may include an upper level gauge and a lower level gauge, and when the liquid level rises to cover the lower level gauge, the lower level gauge outputs the liquid level information to the corresponding controller, and likewise, when the liquid level rises to cover the upper level gauge, the upper level gauge outputs the liquid level information to the corresponding controller.

The utility model also provides an embodiment 1 of the filter tank for pigsty sewage disposal:

the structure of the filter tank in this embodiment is the same as that of the filter tank in the above pig house embodiment 1, and the description thereof is omitted.

In other embodiments, the structure of the filtering tank may also adopt the structure of the filtering tank in other embodiments of the pigsty, which is not described herein again.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., to indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of the present specification, which are used for convenience in explaining aspects of the present invention and for simplicity of description, and do not explicitly or implicitly indicate that the device or element involved must have the particular orientation, be constructed and operated in the particular orientation, and thus should not be interpreted or construed as limiting the aspects of the present invention.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. It is intended that the following claims define the scope of the utility model and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims (8)

1. A filter tank for pigsty sewage discharge is characterized by comprising a tank body, a filter structure and a drainage cavity, wherein the tank body is provided with an input cavity, a filter structure and a drainage cavity;

the input cavity is used for receiving sewage to be treated;

the filtering structure is arranged between the input cavity and the discharge cavity and is used for filtering sewage flowing from the input cavity to the discharge cavity;

the discharge cavity is communicated with a pumping and discharging pipeline, and a pumping and discharging pump for pumping out the sewage in the discharge cavity by a pressure pump is arranged on the pumping and discharging pipeline;

the filter structure is a vertically arranged filter plate which divides the inner cavity of the tank body into the input cavity and the discharge cavity which are horizontally and sequentially arranged;

the input cavity extends along the up-and-down direction, the bottom of the input cavity is provided with a horizontal filter plate, and the horizontal filter plate is used for fishing out the dirt accumulated in the input cavity when the input cavity is taken out upwards.

2. The filter tank for pigsty sewage disposal according to claim 1, wherein the filter plate is detachably fixedly installed in the tank body.

3. The filter tank for pigsty sewage disposal according to claim 1, wherein a bottom surface of the input chamber is an inclined bottom surface inclined downward toward the discharge chamber to guide sewage to flow toward the discharge chamber.

4. The filter tank for the pig house sewage according to any one of claims 1 to 3, wherein the pumping pipeline comprises a main pumping pipeline and an auxiliary pumping pipeline, a pumping pump on the main pumping pipeline is a main pumping pump, and a pumping pump on the auxiliary pumping pipeline is an auxiliary pumping pump;

the filter tank also comprises a liquid level detection device and a controller, wherein the liquid level detection device is used for detecting the liquid level height of the sewage in the discharge cavity;

the controller is connected with the liquid level detection device to receive the detection result of the liquid level detection device, and the controller is connected with the main pump drainage pump and the auxiliary pump drainage pump for controlling the main pump drainage pump to work when the liquid level of the discharge cavity is in the lower part set liquid level interval, and controlling the main pump drainage pump and the auxiliary pump drainage pump to work when the liquid level of the discharge cavity is in the upper part set liquid level interval.

5. The filter tank for pigsty sewage disposal according to claim 4, wherein the liquid level detection device is an ultrasonic liquid level detector.

6. A pig house, comprising:

a column unit having a collecting tank structure below for collecting the liquid dung;

the overflow sewage channel is provided with an inlet and an outlet, the inlet is communicated with the inner cavity of the collecting tank structure, the inlet is positioned above the bottom of the collecting tank structure, and the outlet is communicated with a sewage pipeline;

the filter tank for the pigsty sewage disposal is adopted as the filter tank for the pigsty sewage disposal of any one of claims 1 to 5, and an input cavity of a tank body of the filter tank for the pigsty sewage disposal is communicated with the overflow sewage disposal channel through the sewage disposal pipeline, so that the liquid dung in the collection tank structure flows into the input cavity through the overflow sewage disposal channel and the sewage disposal pipeline when the liquid dung rises to a set liquid level.

7. The pigsty according to claim 6, wherein a drain is provided at a bottom of the collecting tank structure, the overflow drain is formed by an overflow drain pipe plugged and sealed to the drain, the overflow drain extends in an up-and-down direction, the overflow drain has an upper inlet and a lower outlet, the upper inlet forms an inlet of the overflow drain, and the lower outlet forms an outlet of the overflow drain.

8. The pigsty according to claim 7, wherein the upper part of the overflow drain has a downwardly open elbow structure with a downwardly extending elbow section, the lower mouth of the downwardly extending elbow section forming the upper inlet.

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