JP6805437B1 - Slurry reactor for anaerobic fermentation of slurry - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slurry reactor and a method for treating a biogas residue and a biogas slurry with high efficiency. SOLUTION: A catalyst particle and a predetermined temperature are used by using an apparatus including a reactor casing 1 and a reaction cylinder, which can improve agitation efficiency by rotating a rotating shaft in the reaction cylinder and rotating the reaction cylinder around the apparatus casing rotating shaft. Under the action of pressure parameters, the efficiency of fermented gas production from biogas slurry and biogas residue can be improved. [Selection diagram] Fig. 1

Description

The present invention belongs to the technical field of bioenergy utilization, and specifically relates to a slurry reactor and a method for treating a biogas residue and a biogas slurry with high efficiency.

The reactants in the slurry reactor react through the catalyst particles suspended in the liquid phase and are suspended in the liquid phase by mechanical stirring. In the case of a slurry composed of a biogas slurry and a biogas residue, Similar equipment can be used for anaerobic fermentation treatment of biogas slurries and biogas residue slurries, increasing the biogas production of biogas slurries and biogas residues.

In existing slurry reactors, the catalyst particles used are usually 10 to 1000 μm because they are often used in the production of petroleum and chemical products, but the catalyst used for anaerobic fermentation of biogas slurry and biogas residues. Since the particle size of the particles is much larger than that of the above particles, and at the same time, the solid content in the biogas slurry and the biogas residue also has a gravity settling effect, it is difficult to cope with the reaction application of the biogas slurry and the biogas residue. Is.

Therefore, in order to solve the above technical problems, the existing slurry reactor is improved to solve the problem of gravity settling, and its stirring effect is enhanced to cope with the use of biogas slurry and biogas residue. There is a need.

To solve the above technical problems, the technical solution of the present invention is a slurry reactor that processes biogas residues and biogas slurry with high efficiency, which collects the biogas in the device at the upper end. A biogas outlet for the purpose and a biogas auxiliary port for discharging biogas in the device in cooperation with the biogas outlet are provided, and a sealing port for salary is provided on the upper part of the outer surface of the device casing, and the device member. Equipment casing for mounting and
Used for the reaction treatment of biogas slurry and biogas residue, both sides are rotatably connected to the inner wall of the equipment casing via a rotating shaft, and the supply ports are symmetrically provided on the upper and lower end side surfaces of the reaction cylinder. With the reaction cylinder located inside,
A first drive motor used to drive the reaction cylinder to rotate and provided on the outer wall of the device casing on one side of the rotation shaft of the reaction cylinder.
Used for reaction stirring of biogas slurry and biogas residue, a stirring shaft located at the center of the shaft of the reaction cylinder is provided with a plurality of sets of stirring blades at equal intervals on the shaft.
A second drive motor used to drive the stirring shaft and located on the outer walls of both ends of the reaction cylinder,
A biogas pipeline that is used to drain the liquid in the reaction cylinder and allow gas to pass through, and is located symmetrically in the center on both sides of the reaction cylinder.
The biogas pipeline has a U-shaped structure, one end of which communicates with a gas outlet symmetrically provided in the center of both side walls of the reaction cylinder, and the other end of which has a blocking member for gravity anti-blocking in order from the inside to the outside. Provided,
Located in a U-shaped conduction pipe in the biogas pipeline, connected to the gas outlet, with multiple rows of through holes at equal intervals at the ends, used to regulate the back pressure of the liquid in the biogas pipeline, gas It is provided with a gas pressure valve for limiting the pressure of the exhaust gas.

Since the device of the present invention adopts the structural design of the device casing and the reaction cylinder,
While the internal stirring shaft rotates, the reaction cylinder rotates slowly, which reduces the gravity sedimentation of the biogas slurry and biogas residue in the reaction cylinder, and the contact effect between the catalyst particles, the biogas slurry and the biogas residue. The biogas pipeline is provided symmetrically in the center of both sides of the reaction cylinder to improve the processing effect of the slurry reactor.
Provides upper exhaust and leak prevention during rotation of the reaction cylinder, meets the basic requirements for operating the device, does not require components such as electrical control valves, effectively improves the fault tolerance of the device and maintains it. The cost can be reduced.

Further, the blocking member is provided with a plug ring that is fixedly engaged with the biogas pipeline and an air port at the center of the circumferential side surface of the plug, and the air port communicates with the air slot at the center of the plug to form a plug. For suction of plugs that are located inside the ring and are movably connected, counterweights that are located at the rear end of the plug and are fixedly connected (blocks for increasing weights such as bricks), and counterweights and plug rings. Used, a counterweight, a first magnetic ring located on the corresponding end face inside the plug ring, a second magnetic ring, and a magnetic block in the center, a magnetic layer is applied behind the counterweight, and the counter It is provided with a limit block net, which is used for suction of weights and limit block nets, is located behind the counterweight and is fixedly engaged with the biogas pipeline. The structural design of the blocking member uses gravity to switch between blocking and venting the plug under the action of a counterweight, which effectively works with the biogas pipeline to provide upper exhaust and leak prevention. And the operating requirements of the device can be met.

In addition, the above devices include:
It is used for installation of filter media and pre-adsorption purification of biogas, and it corresponds to the equipment casing of the filter layer, and at the lower end, the filter media supply port for feeding the filter media and the filter media outlet for discharging the filter media, respectively. Is provided, and the filter layer provided on the inner wall of the apparatus casing and
It is used for the secondary purification and purification of the filter film and biogas provided in the biogas outlet. By installing the filter layer and the filter film, the produced biogas is pre-purified and purified, and the subsequent biogas collection and purification operation is performed. Reduce, increase gas production mass,
It is used to filter solids to prevent clogging of the biogas pipeline, and to prevent clogging of the biogas pipeline from adversely affecting the liquid return and exhaust effect of the biogas pipeline, and is used at the gas outlet connection of the reaction cylinder. With the filtration net provided in
It is used to control the reaction temperature inside the reaction cylinder, and the exterior of the heating piece facilitates inspection and maintenance, optimizes the effect of using the device, and with the heating piece placed on the outer wall of the reaction cylinder. ,
It further comprises a support used to support the device casing and provided at the bottom of the device casing, and a cover used to seal the sealing port and provided at the sealing port.

Furthermore, in the above device,
The filling volume in the reaction cylinder is less than 2/3 of the total volume, and the rotation speed of the reaction cylinder is 5 rp.
If it is less than m and the filling amount is too large, the gas outlet provided at the top of the reaction cylinder will be overrun by the biogas slurry and biogas residue, causing a failure in the biogas pipeline and limiting the rotation speed of the reaction cylinder. However, excessively high rotational speeds can reduce the effectiveness of the biogas pipeline, causing difficulty or failure in exhaust.

The outer end of the biogas pipeline is 3 to 5 cm higher than the inner end, and the outlet is higher than the inlet, preventing exhaust failure due to the return of liquid.
Sensor A on the outer wall of the pay port of the reaction cylinder and the inner wall of the sealing port of the device casing, respectively.
A sensor B is provided and used to align the salary port and the sealing port. The sensor A and the sensor B can accurately contact the pay port and the sealing port, which adversely affects the operation and use of the device due to misalignment and the like. Can be avoided.

The external electric wire is connected to the reaction cylinder via the rotating shaft of the device casing to supply electric energy to each power consumption mechanism.

According to one aspect of the present invention, the stirring blade has a single-layer blade structure, and is composed of a sleeve fixedly connected to the stirring shaft and a blade provided on the circumference of the sleeve along the circumferential direction. The blade structure is simple, the cost is low, and mass production is easy.

According to another aspect of the present invention, the stirring blade has a double layer blade structure, and the stirring blade is composed of a plurality of sets of connecting sleeves fixedly connected to the stirring shaft and two single blades. A plurality of sets of double-layer blade structures that are alternately slidingly connected to the connection sleeve and are located on the connection sleeve and provided at equal intervals in the circumferential direction, and a single blade has a T-shaped cross section and two single blades. One blade is connected to the main gear fitted in the connecting sleeve via a transmission mechanism,
Guideposts are provided inside each of the two single blades to abut the transmission mechanism and are used for pressing and stirring of two adjacent double layer blade structures, on which a uniform mesh is provided and the two single blades are provided. It is used to drive the engagement between the annular push plate located at the outer end of one blade and the main gear, and a tooth surface corresponding to one side that meshes with the main gear is provided and fixed by connecting to the reaction cylinder via a connection rod. Multiple sets of rotating rings that are rotationally connected to the stirring shaft,
Further, the transmission mechanism is used for abutting transmission between a box for mounting a gear member, a transmission structure and a connection sleeve, and is connected to the main gear through the box via a rack bar.
Two sets of second bevel gears located on both sides of the box and a single-blade guide post used to transmit meshing between the first bevel gear located inside the box and both sides of the first bevel gear. Slidingly connected, a single blade is reciprocated along the connecting sleeve, which penetrates the box through the connecting rod and is connected to the second bevel gear, with reciprocating rods located on both sides of the box, and the box and rack. It is used to reinforce and support the bar and is provided with a support that is fixedly connected to the connecting sleeve and is located below the box and rack bar.

In the present invention, the stirring blade has a double-layer blade structure, and a single blade is displaced and reciprocated with respect to each set of double-layer blade structures during rotation of the stirring shaft by using a component related to a transmission structure or the like. At the same time, pressing is assisted by opening and closing the adjacent annular push plates of the two sets of double-layer blades, and vertical stirring and horizontal stirring are simultaneously performed in the reaction cylinder to generate catalyst particles, biogas slurry, and biogas residue. The mixing degree is improved and the reaction effect of the slurry reactor is enhanced.

Another object of the present invention is to provide a method for treating a biogas residue and a biogas slurry with high efficiency using a slurry reactor.
Using the above slurry reactor, the biogas residue and the biogas slurry are injected into the reaction cylinder, and the catalyst particles are administered according to the dose.
The temperature inside the apparatus was controlled to rise from room temperature to 48 ° C ± 5 ° C, and the biogas slurry and biogas residue were subjected to anaerobic fermentation treatment at that temperature, and the pressure was 0.45 to 0.6.
When it exceeds 5 MPa, biogas is collected through the biogas outlet, and the anaerobic fermentation temperature is maintained at 48 ° C ± 5 ° C by using catalytic particles to appropriately promote the treatment of anaerobic fermentation. In addition, step 2 of maintaining a constant pressure in the reaction cylinder and discharging biogas to improve the reaction processing effect, and
After the reaction is completed, the residual biogas in the slurry reactor is completely discharged, and then the biogas slurry in the reaction cylinder and the biogas slurry residue are taken out and the process proceeds to the subsequent treatment.

In addition, the dose of catalyst particles is 2.5-4 of the total mass of biogas slurry and biogas residue.
.. Occupying 5%, the biogas gas production effect can be significantly enhanced under the dose.
The catalyst particles have a spherical structure having a sustained release effect, and specifically include a structural layer having a honeycomb multilayer structure and a filling powder filled in each honeycomb chamber, and the filling powder is specifically composed of a commercially available biogas fermentant as a main component. In addition, 3 to 7% ascorbic acid by mass ratio and 4 to 12% sodium fructos diphosphate are contained, and the structural layer is specifically 5 to 10 parts of zeolite powder, 2
It is mainly composed of ~ 3 parts of diatomaceous earth and 7 to 13 parts of straw fiber, and also contains 30 to 45% of microcrystalline wax by mass ratio.

The catalytic particles of the above structure improve the stability and action of the biogas fermenting agent using ascorbic acid and sodium fructose diphosphate, while at the same time the structural layer prepared in the above proportions has a low decomposition rate. At the same time, zeolite powder, diatomaceous earth, etc. in the components have a certain promoting effect on the gas production of the biogas slurry and the biogas residue, and the catalyst particles prepared with the above ratio and structure have a good sustained release effect. It has and performs reaction processing in effective cooperation with the slurry reactor.

Further, the method for preparing the catalyst particles is as follows.
1) After the polycrystalline wax is heated and melted, the mixture of the zeolite powder, diatomaceous earth and straw fibers is added to the molten microcrystalline wax and stirred uniformly, and a honeycomb type hemisphere having a different diameter and length is passed through a hemispherical shell honeycomb mold. Steps to create a shaped shell,
2) A step of sequentially filling the packed powder obtained by mixing the above ascorbic acid, sodium fructose diphosphate with a commercially available biogas fermenting agent into honeycomb-shaped hemispherical shells having different diameters, and
3) Catalyst particles having a particle diameter of 14 to 20 mm are obtained by heat welding, and the thickness of the honeycomb-type hemispherical shell of each layer is controlled to 1 ± 0.1 mm, and the groove depth of the honeycomb-type hemispherical shell is controlled to 4 ± 1 mm. .. By limiting the particle size and thickness, etc., the approximate ratio range of the packed powder and the structural layer can be effectively controlled, and at the same time, a data support base can be provided for the operation of accurately preparing the catalyst particles.

The beneficial effects of the present invention are as follows.
(1) The structural design of the apparatus of the present invention allows the reaction cylinder itself to rotate slowly while the internal stirring shaft rotates, and through the structural design of the biogas pipeline, the upper part during the rotation of the reaction cylinder itself. Exhaust and leakage prevention can be realized, the basic requirements for operating the device can be satisfied, the contact effect between the catalyst particles, the biogas slurry and the biogas residue can be enhanced, and the processing effect of the slurry reactor can be improved.
(2) In the apparatus of the present invention, a single blade is displaced and reciprocated with respect to each set of double-layer blade structures by a stirring blade of a double-layer blade structure design, and at the same time, two sets of double-layer blades are adjacent to each other. By assisting pressing by opening and closing the annular push plate and simultaneously performing vertical stirring and horizontal stirring in the reaction cylinder, the mixing degree of the catalyst particles, the biogas slurry and the biogas residue is increased, and the reaction effect of the slurry reactor is increased. Can be improved.
(3) In the method of the present invention, catalyst particles are added, and a structural layer and a packed powder prepared in a constant ratio are used to reduce the decomposition rate, satisfy the requirements for the sustained release function, and at the same time, each component is biogas. It has a certain promoting effect on the gas production of the gas slurry and the biogas residue, continues to have a good reaction use effect by adding the catalyst particles, and can carry out the reaction treatment in effective cooperation with the slurry reactor.

It is a schematic outside appearance of the slurry reaction apparatus of this invention. It is a front view of the slurry reaction apparatus of this invention. It is the schematic which shows the front internal structure of the slurry reaction apparatus of this invention. It is a side view of the slurry reaction apparatus of this invention. It is the schematic which shows the internal structure of the side surface of the slurry reaction apparatus of this invention. It is a structural enlarged view of the part A in FIG. 5 of this invention. It is the schematic which shows the structure of the blocking member of the slurry reaction apparatus of this invention. It is the schematic which shows the internal structure of the reaction cylinder of the specific Example 1 of this invention. It is the schematic which shows the internal structure of the reaction cylinder of the specific Example 2 of this invention. It is the schematic which shows the stirring blade plan view structure of the specific Example 2 of this invention. It is an enlarged view of the structure of the B location in FIG. 10 of the present invention. It is the schematic which shows the partial cross-sectional structure of the stirring blade of the specific Example 2 of this invention. It is the schematic which shows the arrangement relation of the single blade and the transmission mechanism of the specific Example 2 of this invention. It is the schematic which shows the structure of the transmission mechanism of the specific Example 2 of this invention. It is a graph of the biogas production amount of the specific Example 7 of this invention.

[Explanation of sign]
1 Device casing 11 1st drive motor 12 Biogas outlet 13 Biogas auxiliary port 14 Support 15 Sealing port 16 Cover 17 Filter layer 18 Filter material supply port 19 Filter material outlet 2 Reaction cylinder 21 Supply port 22 Gas outlet 23 Stirring Shaft 24 Second drive motor 25 Heating piece 26 Sensor A
27 Sensor B
3 Biogas pipeline 31 U-shaped conduction pipe 4 Breaking member 41 Plug ring 42 Plug 421 Air port 422 Air slot 43 Counter weight 44 First magnetic ring 45 Second magnetic ring 46 Limit block net 5 Gas pressure valve 6 Stirring blade 61 Connection sleeve 611 Main gear 62 Single blade 621 Guide post 63 Transmission mechanism 631 Box 632 First cap gear 633 Second cap gear 634 Rack bar 635 Reciprocating rod 64 Support 65 Rotating ring 66 Circular push plate

Unless otherwise stated, all raw materials and equipment members used in the examples are conventionally commonly used or commercially available in the art.

Example 1
As shown in FIGS. 1, 2 and 4, the device of the present invention includes a device casing 1 on which a device member is mounted, and a biogas outlet 12 and a biogas outlet 12 for collecting biogas in the device are provided at the upper ends thereof. A biogas auxiliary port 13 for discharging the biogas in the device is provided in cooperation with the device.
A salary sealing port 15 is provided on the upper part of the outer surface of the device casing 1 to support the device casing 1 and seal the support 14 provided at the bottom of the device casing 1 and the sealing port 15. A cover 16 provided at the sealing port 15 is provided.

As shown in FIG. 3, a filter layer 17 provided on the inner wall of the device casing 1 is provided and used for arranging an activated carbon filler and performing preliminary adsorption purification of biogas, and corresponds to the device casing 1 of the filter layer 17. Filter material salary port 1 for replenishing filter material at the top and bottom respectively
8. A filter medium outlet 19 for discharging the filter medium is provided, and the PVDF filter film provided in the biogas outlet 12 is used for secondary purification and purification of biogas, and the filter layer 17 and the filter film are installed. Preliminarily purifies and purifies the produced biogas, reduces the subsequent biogas collection processing operation, increases the gas production mass, and connects the external electric wire to the reaction cylinder 2 via the rotating shaft of the device casing 1. , Supply electrical energy to each power consumption mechanism.

As shown in FIGS. 5 and 8, a reaction cylinder 2 located in the apparatus casing 1 is provided and used for the reaction treatment of the biogas slurry and the biogas residue, and both sides thereof of the apparatus casing 1 are provided via a rotating shaft. It is rotatably connected to the inner wall, and the supply ports 21 are symmetrically provided on the upper and lower side surfaces of the reaction cylinder 2, respectively, and the device casing 1 on one side of the rotation shaft of the reaction cylinder 2 is provided.
The first drive motor 11 provided on the outer wall of the reaction cylinder 2 is provided, and is used for rotationally driving the reaction cylinder 2. The stirring shaft 23 located on the central axis of the reaction cylinder 2 is provided, and the reaction between the biogas slurry and the biogas residue. Used for stirring, a plurality of sets of stirring blades 6 for stirring are provided on the shaft at equal intervals, and the stirring blade 6 has a single-layer blade structure, and a sleeve and a sleeve fixedly connected to the stirring shaft 23 It is composed of blades provided on the circumference of the sleeve along the circumferential direction, includes second drive motors 24 located on the outer walls at both ends of the reaction cylinder 2, and is used to drive the stirring shaft 23.

As shown in FIG. 7, a biogas pipeline 3 located on both side walls of the reaction cylinder 2 and provided symmetrically in the center is provided, and is used to limit the outflow of liquid in the reaction cylinder 2 and allow gas to pass through. The line 3 has a U-shaped structure, one end of which communicates with a gas outlet 22 symmetrically provided in the center of both side walls of the reaction cylinder 2, and the other end of which is provided with a blocking member 4 for gravity antiblocking in order from the inside to the outside. It is equipped with a gas pressure valve 5 for adjusting the pressure of the exhaust gas, is located at the connection point between the U-shaped conduction pipe 31 and the gas outlet 22 in the biogas pipeline 3, and has a plurality of rows at equal intervals at the end thereof. A through hole is provided and is used for back pressure of the liquid in the biogas pipeline 3.

As shown in FIG. 3, a filtration net provided at the connection portion of the gas outlet 22 of the reaction cylinder 2 is provided to filter solids to prevent clogging of the biogas pipeline 3, and clogging of the biogas pipeline 3 causes the biogas pipeline 3 to be clogged. The exterior of the heating piece 25 is provided with a heating piece 25 provided on the outer wall of the reaction cylinder 2 and is used to control the reaction temperature inside the reaction cylinder 2 in order to avoid adversely affecting the return and exhaust effect of the liquid. As a result, inspection and maintenance are facilitated, the effect of using the device is improved, the filling volume in the reaction cylinder 2 is less than 2/3 of the total volume, the rotation speed of the reaction cylinder 2 is less than 5 rpm, and the filling amount is too large. The gas outlet 22 provided on the upper part of the reaction cylinder 2 is overrun by the biogas slurry and the biogas residue, which causes a failure in the biogas pipeline 3, limits the rotation speed of the reaction cylinder 2, and causes excessively high rotation. Depending on the speed, the action and effect of the biogas pipeline 3 may be reduced, causing difficulty or failure of exhaust. Since the outer end of the biogas pipeline 3 is 3 to 5 cm higher than the inner end and the outlet is higher than the inlet, exhaust failure due to the return of liquid is prevented, and the outer wall of the salary port 21 of the reaction cylinder 2 and the sealing of the device casing 1 are sealed. Stop 15
Sensor A26 and sensor B27 are provided on the inner wall of the sensor A26 and sensor B27, respectively. Sensor A26 and sensor B27 are commercially available infrared emitters and infrared receivers, respectively, and are used for aligning the salary port 21 and the sealing port 15. As a result, the feeding port 21 and the sealing port 15 can be accurately brought into contact with each other, and it is possible to avoid adversely affecting the operation and use of the device due to misalignment or the like.

However, as shown in FIG. 7, the blocking member 4 is provided with a plug ring 41 that is fixedly engaged with the biogas pipeline 3 and an air port 421 at the center of the circumferential side surface of the plug 42. A plug 42 whose port 421 communicates with an air slot 422 at the center of the plug 42 and is located in the plug ring 41 and is movably connected, a counter weight 43 located at the rear end of the plug 42 and fixedly connected, and a counter. Used to attract the weight 43 and the plug ring 41, the counterweight 43, the first magnetic ring 44 located on the corresponding end face inside the plug ring 41, the second magnetic ring 45, and a magnetic block at the center are provided. ,
A magnetic layer is applied behind the counterweight 3, which is used to attract the counterweight 43 and the limit block net 46, and is located behind the counterweight 43 and is fixedly engaged with the biogas pipeline 3. And.

The operation method of the above device is as follows.
Filling of biogas slurry and biogas residue: Sensor A 26 and sensor B 27 align the supply port 21 and the sealing port 15 on the upper part of the reaction cylinder 2 to seal the cover 16 of the sealing port 15 and the sealing port 21. The stop cover is opened, the biogas slurry, the biogas residue and the catalyst particles are injected into the reaction cylinder 2 through the conduit, and then the feeding port 21 and the sealing port 15 are closed in order.
Operation of reaction cylinder 2: Start the device, first drive motor 11 and second drive motor 24
Starts to start, respectively, the reaction cylinder 2 is rotated along the rotation axis, the stirring shaft 23 is rotated, and the inside of the reaction cylinder 2 is stirred by the stirring blade 6 on the stirring shaft 23.
However, in the case of driving the second drive motor 24, different modes can be selected, and one, two second
The drive motors 24 can alternately rotate forward and reverse, and 2. a single second drive motor 24 can drive in one direction.
Principle of biogas pipeline 3: When the device rotates at a low speed, a biogas pipeline 3 having two functions of upper and lower gas discharge and leakage prevention is formed. Specifically,
In the biogas pipeline 3 corresponding to the upper gas outlet 22, since the upper gas outlet 22 in the reaction cylinder 2 does not come into contact with the liquid, the pressure in the tank causes the gas to flow in the biogas pipeline 3 along the gas outlet 22. When the liquid is accumulated in the biogas pipeline 3, the accumulated liquid moves to the outer end along the biogas pipeline 3 and conducts the U-shaped conduction pipe 31 under the action of pressure. The liquid accumulated under the action of pressure returns to the reaction cylinder 2 along the U-shaped conduction pipe 31, and when the pressure continues to act, the liquid is pushed back to the U-shaped conduction pipe 31 and the gas rises to the outlet. Biogas is discharged by the open blocking member 4 and the gas pressure valve 5 at the top.
In the biogas pipeline 3 corresponding to the lower gas outlet 22, the lower gas outlet 22 in the reaction cylinder 2 overruns the biogas slurry and the biogas residue, filters the solid content under the action of a filtration net, and only the liquid. Due to the structure of the biogas pipeline 3 at the same time, the liquid inside cannot flow into the biogas pipeline 3 under the action of the closed blocking member 4 and the gas pressure valve 5.
Principle of blocking member 4: When the blocking member 4 is located at the upper part, the counter weight 43 is separated from the first magnetic ring 44 and the second magnetic ring 45 under the action of gravity, and the magnetic layer at the bottom of the counter weight 43 is limited. Attracted by the magnetic block of the block net 46, the plug 42 is removed from the plug ring 41, each air port 421 of the plug 42 communicates with the biogas pipeline 3 and is sent to the gas pressure valve 5 via the air slot 422 to shut off. When the member 4 is located at the bottom, it is the same as the above principle.
However, the first drive motor 11, the second drive motor 24, the gas pressure valve 5, and the like are
It is selected from commercially available products or its appearance is adjusted according to the commercially available products to meet the mounting requirements of this device.

A method for treating a biogas residue and a biogas slurry with high efficiency using the above slurry reactor includes the following steps.
Step 1: Using the above slurry reactor, the biogas residue and the biogas slurry are injected into the reaction cylinder 2, the catalyst particles are administered according to the dose, and the dose of the catalyst particles is the biogas slurry and the biogas residue. Occupies 2.5-4.5% of the total mass,
Step 2: The temperature inside the apparatus is controlled to rise from room temperature to 48 ° C ± 5 ° C, and the biogas slurry and biogas residue are anaerobically fermented at that temperature, and the pressure is 0.45.
When it exceeds ~ 0.65 MPa, biogas is collected through the biogas outlet 12.
Step 3: After the reaction is complete, that is, if biogas cannot be collected through the biogas outlet 12, open the cover of the upper salary port 21 to completely drain the residual biogas in the slurry reactor and then pump. The biogas slurry and the biogas slurry residue of the reaction cylinder 2 are taken out and the process proceeds to the subsequent treatment.

However, the catalyst particles have a spherical structure having a sustained release effect, and specifically include a structural layer having a honeycomb multilayer structure and a filling powder filled in each honeycomb chamber, and the filling powder is specifically Ferm.
The main component is an entability microbe biogas fermenting agent, and the mass ratio is 3 to 3 to
It contains 7% ascorbic acid and 4-12% sodium fructose diphosphate, and the structural layer is specifically composed of 5 to 10 parts of zeolite powder, 2 to 3 parts of diatomaceous earth, and 7 to 13 parts of straw fiber. In addition, it contains 30 to 45% of microcrystalline wax by mass ratio.

The method for preparing the catalyst particles includes the following steps.
1) After the polycrystalline wax is heated and melted, the mixture of the zeolite powder, diatomaceous earth and straw fibers is added to the molten microcrystalline wax and stirred uniformly, and a honeycomb type hemisphere having a different diameter and length is passed through a hemispherical shell honeycomb mold. Create a shape shell,
2) Filling powders obtained by mixing the above ascorbic acid, sodium fructose diphosphate and a commercially available biogas fermenting agent in honeycomb-type hemispherical shells having different diameters are sequentially filled in layers.
3) Catalyst particles having a particle diameter of 14 to 20 mm are obtained by heat welding, and the thickness of the honeycomb-type hemispherical shell of each layer is controlled to 1 ± 0.1 mm, and the groove depth of the honeycomb-type hemispherical shell is controlled to 4 ± 1 mm. ..

Example 2
Unlike the first embodiment, the stirring blade 6 has a bilayer blade structure, specifically,
As shown in FIGS. 9, 10, 11 and 13, the stirring blade 6 is composed of a plurality of sets of connecting sleeves 61 fixedly connected to the stirring shaft 23 and two single blades 62, and the connecting sleeve 6 is composed of two single blades 62.
A plurality of sets of double-layer blade structures that are alternately slidingly connected to 1 and are located on the connection sleeve 61 and are provided at equal intervals in the circumferential direction, and a single blade 62 has a T-shaped cross section and two. The single blade 62 is connected to the main gear 611 fitted in the connecting sleeve 61 via the transmission mechanism 63, and a guide post 621 that contacts the transmission mechanism 63 is provided inside each of the two single blades 62. Used for pressure agitation of two adjacent bilayer blade structures,
A mesh is uniformly provided on the mesh, and the annular push plate 66 located at the outer end of the two single blades 62 is used to drive the meshing of the main gear 611, and the tooth corresponding to one side that meshes with the main gear 611. A surface is provided and connected to and fixed to the reaction cylinder 2 via a connecting rod.
A plurality of sets of rotating rings 65 that are rotationally connected to the stirring shaft 23 are provided.
However, as shown in FIGS. 12 and 14, the transmission mechanism 63 is used for contact transmission between the box 631 for mounting the gear member, the transmission structure 63, and the connection sleeve 61, and the rack bar 634.
It is connected to the main gear 611 through the box 631 and is used for meshing transmission between the first bevel gear 632 located inside the box 631 and both sides of the first bevel gear 632, and is used on both sides of the box 631. Two sets of second bevel gears 633 and a single blade 6 located at
Slidingly connected to the guide post 621 of 2, the single blade 62 is reciprocated along the connecting sleeve 61, which penetrates the box 631 via the connecting rod and is the second bevel gear 633.
Used to reinforce and support the reciprocating rods 634 located on both sides of the box 631 and the box 631 and the rack bar 634, and fixedly connected to the connecting sleeve 61, below the box 631 and the rack bar 634. A support 64 located is provided.

The operation method of the stirring blade 6 having the above bilayer blade structure is as follows.
When the stirring shaft 23 rotates, each connecting sleeve 61 is rotated, the main gear 611 of each connecting sleeve 61 is rotated under the action of each rotating ring 65, and each transmission mechanism 63 is driven by the action of the main gear 611. The two single blades 62 are alternately reciprocated, and the pressing force of the annular push plates 66 having the two adjacent double-layer blade structures causes vertical agitation during the vertical rotation.
Operating principle of transmission mechanism 63: When the main gear 611 rotates, the first bevel gear 632 in the box 631 is rotated via the rack bar 634, and the second bevel gears 633 on both sides of the first bevel gear 632 are further moved. Rotated, the external reciprocating rod 635 of the box 631 rotated,
By the action of the reciprocating rod 635 and the guide post 621 of the single blade 62, the reciprocating rod 635 reciprocates up and down along the connection sleeve 61, and the guide posts of the single blade 62 on both sides are provided at different positions from the reciprocating rod 635. By reciprocating the single blade 62 in the forward and reverse directions, the stirring function of the double layer blade structure is realized.

Biogas treatment was performed using the apparatus and method of Example 2 and the apparatus and method of Example 1 to investigate the effect of different stirring blade 6 structures on the treatment effect, and a test sample of the same breeding ground in the city. Using the biogas slurry and biogas residue, 2 tons were collected, stirred evenly and then processed in two test samples, the specific results of which are shown in Table 1.
Table 1 Biogas production under each device

Conclusion: As can be seen from the comparison of the biogas production amount data of Example 1 and Example 2, the different stirring blades 6 have a great influence on the slurry reaction treatment, and the biogas slurry, the biogas residue and the catalyst particles are mixed and stirred. It has a great influence, and the effect of using the stirring blade 6 having the double layer blade structure of Example 2 is more effective, and the amount of biogas prepared is greatly increased.

Example 3
Using the equipment and methods of Example 2, the effects of different catalytic particle doses on the treatment effect were investigated, and 3 tonnes were collected as test samples using biogas slurries and biogas residues from the same breeding grounds in the city. After stirring evenly and evenly, the test samples were evenly divided into three test samples and treated to obtain Experimental Examples 1, 2 and 3, and the specific parameters are as follows.
Experimental Example 1 (ie, parameters of Example 1 and Example 2): The catalyst particle dose accounts for 3.9% of the total mass of the biogas slurry and biogas residue.
Experimental Example 2: The catalyst particle dose accounts for 4.5% of the total mass of the biogas slurry and the biogas residue.
Experimental Example 3: The catalyst particle dose accounts for 2.5% of the total mass of the biogas slurry and biogas residue.
Specifically, it is as shown in Table 2.
Table 2 Biogas production at different catalyst particle addition doses in each experimental example

Conclusion: As can be seen from the comparison of the biogas production amounts of Experimental Examples 1 to 3, different catalyst-added doses have a great influence on the slurry reaction treatment, and the effect of using the added dose of Experimental Example 1 is more effective. It is effective, and if it is smaller than this dose, gas production by anaerobic fermentation of biogas slurry and biogas residue cannot be sufficiently promoted, and if it is higher than this dose, biogas slurry and biogas due to excessive addition. May suppress gas production due to anaerobic fermentation of residues.

Example 4
Using the equipment and method of Example 2, the effect on the treatment effect at different temperatures was investigated, and the test sample used biogas slurry and biogas residue from the same breeding ground in the city, and 3 tons were collected and leveled. After stirring evenly, the test samples were evenly divided into three test samples and treated to obtain Experimental Examples 4, 5 and 6, and the specific parameters are as follows.
Experimental Example 4 (that is, parameters of Example 1 and Example 2): Controlling the temperature inside the apparatus to rise from room temperature to 48 ° C.
Experimental Example 5: The temperature inside the apparatus is controlled to rise from room temperature to 43 ° C.
Experimental Example 6: The temperature inside the device is controlled to rise from room temperature to 53 ° C.
Specifically, it is as shown in Table 3.
Table 3 Biogas production at different temperatures in each experimental example

Conclusion: As can be seen from the comparison of the biogas production amount data of Experimental Examples 4 to 6, different reaction temperatures from the catalyst particles have a certain effect on the slurry reaction treatment, and gas production at the reaction temperature of Experimental Example 4 is included in the reaction temperature. The effect is more effective, with some reduction in biogas production below or above this temperature.

Example 5
Using the equipment and method of Example 2, the effect of pressure in different reaction cylinders on the treatment effect was investigated, and the test sample used biogas slurry and biogas residue from the same breeding ground in the city, 3 tons. After collecting and stirring evenly and evenly, the two test samples were evenly divided into two test samples and treated to obtain Experimental Examples 7, 8 and 9, and the specific parameters are as follows.

Experimental Example 7 (that is, parameters of Examples 1 and 2): When the pressure exceeds 0.55 MPa, the biogas is discharged through the gas pressure valve 5 and the biogas is collected through the biogas outlet 12.

Experimental Example 8: When the pressure exceeds 0.45 MPa, the biogas is discharged through the gas pressure valve 5 and the biogas is collected through the biogas outlet 12.

Experimental Example 9: When the pressure exceeds 0.65 MPa, the biogas is discharged through the gas pressure valve 5 and the biogas is collected through the biogas outlet 12.

Specifically, it is as shown in Table 4.
Table 4 Biogas production at different pressures in each experimental example

Conclusion: As can be seen from the comparison of the biogas production amount data of Experimental Examples 7 to 9, the gas pressure in different tanks has a certain effect on the slurry reaction processing, and the gas production effect of the reaction temperature of Experimental Example 7 is included. Is more effective, and if it is below or above this pressure, biogas production will decrease to some extent.

Example 6
Using the equipment and method of Example 2, the effect on the treatment effect of catalyst particles composed of different proportions was investigated, and the test sample used biogas slurry and biogas residue from the same breeding ground in the city, 3 After tons are collected and stirred evenly and evenly, the test samples are evenly divided into three test samples and treated to obtain Experimental Examples 10, 11 and 12, and the respective ratio components are as follows.

Experimental Example 10 (that is, the parameters of Example 1 and Example 2): The packed powder is specifically Terme.
The main component is nitality microbe biogas fermenting agent, and also contains 5% ascorbic acid and 9% fructose diphosphate by mass ratio, and the structural layer is specifically 7 parts zeolite powder, 3 parts diatomaceous earth, 11 The main component is straw fiber, and the mass ratio is 38%.
Contains microcrystalline wax.

Experimental Example 11: The packed powder specifically contains a fermentative biogas fermenting agent as a main component, and also contains 3% ascorbic acid by mass ratio and 4% sodium fructose diphosphate, and the structural layer is specifically 5 parts. The main components are zeolite powder, 2 parts of diatomaceous earth, and 7 parts of straw fibers, and also contains microcrystalline wax with a mass ratio of 30%.

Experimental Example 12: The packed powder specifically contains a fermentative biogas fermenting agent as a main component, and also contains 7% ascorbic acid and 12% sodium fructose diphosphate by mass ratio, and the structural layer is specifically 10 parts. Zeolite powder, 3 parts diatomaceous earth, 13
The main component is straw fiber, and it also contains microcrystalline wax with a mass ratio of 45%.
Specifically, it is as shown in Table 5.
Table 5 Biogas production at different ratios in each experimental example

Conclusion: As can be seen from the comparison of the biogas production amount data of Experimental Examples 10 to 12, different catalyst particle component ratios have a great influence on the slurry reaction treatment, and the effect of using the catalyst particles of Experimental Example 10 is more effective. At other ratios, biogas production is significantly reduced.

Example 7
Using the apparatus and method of Example 2, the catalyst particles and the commercial Fermenta at the same dose
To investigate the effect of biogas fermenting agent on the treatment effect of vitalimicrobe biogas fermentant, 2 tons of biogas slurry and biogas residue from the same breeding ground in the city were used as test samples, and 2 tons were collected and stirred uniformly, and two tests were performed evenly. The biogas production is shown in FIG. 15 after processing by dividing into samples.

CONCLUSIONS: As can be seen from FIG. 15, the biogas production curve using the commercial Fermentability microbe biogas fermenter shows a relatively clear downward trend during the reaction and is still a relatively stable gas with catalytic particles. The production curve is maintained, and thus the sustained release effect of the catalyst particles of the present invention is clear, and the biogas biogas production can be effectively increased.

Remarks: The biogas collected in each of the above Examples 1 to 7 is the amount of biogas collected from the biogas outlet (12), and does not include the discharged residual biogas.

Claims (1)

A gas outlet (12) for collecting the gas in the device and a gas auxiliary port (13) for discharging the gas in the device in cooperation with the gas outlet (12) are provided at the upper end, and the outer surface is provided. A device casing (1) for mounting a device member provided with a sealing port (15) for supply on the upper part of the
Used in anaerobic fermentation process slurries, both sides are rotatably connected to the device casing (1) interior wall via a rotating shaft, respectively supply opening upper and lower ends sides (21) are provided symmetrically, device casing ( The reaction cylinder (2) located inside 1) and
A first drive motor (11) used to rotationally drive the reaction cylinder (2) and provided on the outer wall of the apparatus casing (1) at one end of the rotation shaft of the reaction cylinder (2).
Used for anaerobic fermentation treatment of slurries, multiple sets of stirring blades for stirring on the shaft at equal intervals (
6) is provided, and the stirring shaft (23) located at the center of the shaft of the reaction cylinder (2) and
A second drive motor (24), which is used to drive the stirring shaft (23) and is located on the outer walls at both ends of the reaction cylinder (2),
A gas pipeline (3), which is used to discharge the slurry in the reaction cylinder (2) and allow gas to pass through, and is located symmetrically in the center on both side walls of the reaction cylinder (2).
The gas pipeline (3) has a U-shaped structure, and one end thereof communicates with a gas outlet (22) symmetrically provided in the center of both side walls of the reaction cylinder (2).
It is connected to a gas outlet (22), equally spaced through-holes of the plurality of rows are provided in the end, used to adjust the back pressure of the slurry in the gas pipeline (3), for limiting the pressure of the gas Gas pressure valve (5) and
A slurry reactor for anaerobic fermentation treatment of a slurry, which comprises the above.