CN203222586U - Biogas digester stirrer - Google Patents

Abstract

The utility model relates to a biogas tank stirrer, which comprises a stirring rod, a pull rod and a main shaft. A connecting piece A is fixedly arranged on the top of the main shaft. One end of the stirring rod is connected to the connecting piece A, and a connecting piece is arranged on the stirring rod. Part B, on the main shaft is provided with a connecting part C that can slide up and down along the main shaft, one end of the pull rod is connected to the connecting part B, and the other end of the pulling rod is fixed on the connecting part C. The utility model effectively solves the problems of crusting and sedimentation in biogas pools, and the utility model is convenient to purchase and low in cost. The method is simple in technology and easy to operate, and is suitable for adopting biogas pools for rural households.

Description

Digester Mixer

technical field

The utility model relates to a biogas tank stirrer, which belongs to the technical field of biogas production equipment.

Background technique

The majority of rural users in northern my country mainly use hydraulic biogas digesters. After the hydraulic biogas digesters have been in operation for a period of time, some of the daily fermented raw materials float up under the action of buoyancy to produce scum, which in turn forms crusts and ferments. After the raw material is fermented, biogas residue is produced, and sedimentation occurs at the bottom of the pond under the action of gravity. Incrustation and sedimentation have become prominent problems in the current rural hydraulic biogas digesters. Years of inspections have proved that for biogas digesters that use human and animal manure as the main fermentation raw material, the crust thickness will be 18-25 centimeters after one year, and for biogas digesters that use weeds and straw as the main fermentation raw materials, the crust thickness will be 25 centimeters after one year. ~35 cm. The formation of crusts will hinder the accumulation of biogas generated in the pond, reduce the effective volume and gas storage chamber, reduce the utilization rate of raw materials, and reduce the gas production. When the incrustation is serious, it will often turn a good biogas digester into a "sick pond, waste pond". In order to solve the problem of incrustation and sedimentation in biogas digesters, an artificial stirrer for biogas digesters was invented.

Chinese patent document CN102250761A (Application No. 201110207008.1) discloses a stirrer for a biogas digester. The invention includes a stirrer in the tank body, and a sleeve is provided on the shaft of the stirrer and is flexibly connected to it, and the sleeve goes through the cover upwards. A movable handle is connected to the upper end of the shaft, and a stirring paddle is vertically connected to the lower end. Since the present invention is equipped with an agitator in the tank body, when the floating matter in the tank is crusted, the surface crust of the fermented product floating on the surface is broken by rotating the agitator, so that the ventilation in the tank is smooth, the fermentation reaction is promoted, the fermentation rate is increased, and the production rate is accelerated. capacity. However, this patent has the following disadvantages: high manufacturing cost, long-term placement in the biogas pit, easy to be corroded by impurities in the biogas pit, and shorten the life of the biogas pit.

Chinese patent document CN2080941U (application number 90226906.2) discloses a human agitator for rural household biogas digesters, which consists of a base, a blade shaft, a sleeve, a transmission shaft, blades, and a handle. The agitator has a simple structure and is easy to install. Using it solves the problems of crusting on the surface and silting at the bottom of the biogas pond, and at the same time improves the gas output rate of the biogas pond and the difficulty of discharging waste from the pond. But, there is following shortcoming in this patent: the body is bulky and inconvenient to clean.

Contents of the invention

The utility model provides a biogas tank agitator for the problems that sedimentation, hardening and scum incrustation easily occur when the biogas tank is used for a long time, which affects the gas production of the biogas tank.

The technical scheme of the utility model is as follows:

A biogas digester stirrer, comprising a stirring rod, a pull rod, and a main shaft, characterized in that the top of the main shaft is fixedly provided with a connecting piece A, one end of the stirring rod is connected to the connecting piece A, and a connecting piece is arranged on the stirring rod Part B, on the main shaft is provided with a connecting part C that can slide up and down along the main shaft, one end of the pull rod is connected to the connecting part B, and the other end of the pulling rod is fixed on the connecting part C.

The stirring rods are 4×3cm angle irons with a length of 30cm, the tie rods are ￠10 steel bars with a length of 100cm, and the main shafts are ￠32×3.5 steel pipes with a length of 150cm. The material of the stirring rod, the tie rod and the main shaft is relatively strong, not easy to be corroded by the gas in the biogas tank, and has a long service life.

The connecting piece A is in the shape of a ring, and the inner diameter of the connecting piece A is not less than the outer diameter of the main shaft so as to be fixedly arranged on the top of the main shaft. The connecting piece A is evenly provided with four holes, and the stirring One end of the rod is provided with a circular ring, and the circular ring passes through the hole on the connecting piece A, so that the stirring rod can be folded and opened freely.

The connecting piece B is composed of two fixing bars, a rod and a ring, the fixing bar is fixed and vertically connected with the stirring rod, a bar is fixedly connected between the two fixing bars, and a ring is covered on the bar. The ring is connected with the tie rod.

The connector C is in the shape of a ring, and the inner diameter of the connector C is not smaller than the outer diameter of the main shaft so as to be arranged on the main shaft and slide up and down along the main shaft. The connector C is evenly provided with four holes, One end of the pull rod is provided with a ring, and the ring passes through the hole on the connector C so that the pull rod can be folded and opened freely.

A shrapnel is installed in the upper part of the main shaft. The shrapnel is composed of a spring and a sheet object, one end of the sheet object is fixed on the inner wall of the main shaft, one end of the spring is connected to the middle of the sheet object, and the other end of the spring is arranged on the inner wall of the main shaft. The shrapnel has a simple structure, is not easily damaged during use, and has a long service life. When opening the artificial mixer of the biogas digester, hold the connecting piece C and push it up hard. After passing the shrapnel, let go of your hand, and the shrapnel bounces up. The connecting piece C will not slide down because it is blocked by the shrapnel, and the connecting piece C will stay on the main shaft. So far, the biogas digester artificial agitator is fully open.

The lower part of the main shaft is provided with a hook. One end of the hook is curved so as to hook the connector C, and the other end is fixedly set on the main shaft of the lower part. After the operation of the biogas digester manual agitator is completed, press the shrapnel at D, and the shrapnel is pressed into the main shaft and pulled down. The connecting piece C, the connecting piece C can slide down along the main shaft through the retainer, and pull the stirring rod together by pulling the pull rod. When the stirring rod is drawn close to the main shaft, hook the hook on the connecting piece C. is collapsed. The angles between adjacent stirring rods are equal, centered on the main shaft, and distributed uniformly in a conical radial shape.

Preferably in the present invention, the included angles between adjacent stirring rods are equal; the maximum opening angle between the stirring rods and the main shaft is 30°-60°.

Preferably in the utility model, the quantity of stirring rods is 4.

Preferably in the present invention, the connecting piece B is fixed at the midpoint of the stirring rod.

The working process of the present utility model is as follows:

When the biogas digester agitator is in the folded state, extend from the feed port of the biogas digester to the biogas slurry at the lower part of the biogas digester, remove the hook, push the connecting piece C upward along the main shaft, and push through the shrapnel D, the shrapnel opens to prevent the connection The part C slides down, the connecting part C is fixed on the main shaft, and the manual agitator is in the open state. Pull the agitator up and down to stir, which can prevent the sedimentation and hardening of the biogas residue, and break the crust on the biogas tank. After the stirring is completed, press the The shrapnel at D, the shrapnel is pressed into the groove of the main shaft, the connecting piece C is pulled down, and the connecting piece C can slide down along the main shaft through the shrapnel D, and the stirring rod is pulled together by the pull rod. When the stirring rod is drawn close to the main shaft, the hook hook On the connecting piece C, the agitator of the biogas digester is retracted at this time, and after the agitator is retracted, it will be taken out from the feed port of the biogas digester.

The beneficial effects of the utility model are:

1. The utility model does not need specific devices and equipment, and the manufacturing method is simple and easy to popularize;

2. The utility model uses the required materials as conventional materials, which is convenient to purchase and low in cost. The method is simple in technology and easy to operate;

3. The utility model is designed in combination with the size of the biogas digester, and is suitable for use in the majority of rural household biogas digesters;

4. The shrapnel of the utility model has a simple structure, is not easy to be damaged, and has a long service life;

5. The application of the utility model can prevent biogas slag from hardening, sedimentation, and crusting, increase oxygen supply, and improve the gas production rate of biogas digesters;

6. The application of the utility model makes the fermentation of biogas residue and biogas slurry more sufficient, which is beneficial to the comprehensive utilization of biogas residue and biogas slurry;

7. By applying the utility model, the utilization rate of the rural biogas pits is improved, and the service life of the biogas pits is prolonged.

Description of drawings

Fig. 1 is the schematic diagram of the structure of the open state of the biogas digester agitator;

Fig. 2 is a schematic structural diagram of a biogas digester agitator in a folded state;

Fig. 3 is the schematic diagram of enlarged structure of connector A;

Fig. 4 is the schematic diagram of enlarged structure of connector B;

FIG. 5 is a schematic diagram of an enlarged structure of a connector C;

Fig. 6 is a schematic diagram of the enlarged structure of the shrapnel;

Fig. 7 is a schematic diagram of the enlarged structure of the hook.

Among them, 1. Stirring rod; 2. Pull rod; 3. Main shaft; 4. Connector A; 5. Connector B; 6. Connector C; 7. Shrapnel; 8. Hook.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but is not limited thereto.

Example 1

A biogas digester mixer, comprising a stirring rod 1, a pull rod 2, and a main shaft 3, the top of the main shaft 3 is fixedly provided with a connecting piece A4, one end of the stirring rod 1 is connected to the connecting piece A4, and the stirring rod 1 is provided with a connecting piece B5 , the main shaft 3 is provided with a connecting piece C6 that can slide up and down along the main shaft 3, one end of the tie rod 2 is connected to the connecting piece B5, and the other end of the tie rod 2 is fixed on the connecting piece C6.

The stirring rods 1 are 4×3cm angle irons with a length of 30cm, the tie rods 2 are ￠10 steel bars with a length of 100cm, and the main shaft 3 is a ￠32×3.5 steel pipe with a length of 150cm.

The connector A4 is in the shape of a ring, the inner diameter of the connector A4 is not less than the outer diameter of the main shaft 3, and four holes are uniformly arranged on the connector A4, and one end of the stirring rod 1 is provided with a ring, and the ring passes through the connection hole on piece A4.

The connector B5 is composed of two fixed bars, a rod and a ring, the fixed bar is fixed and vertically connected with the stirring rod 1, a bar is fixedly connected between the two fixed bars, and a ring is set on the bar, and the ring and the stirring rod 1 are fixed and vertically connected. The tie rod 2 is connected.

The connecting piece C6 is in the shape of a ring, the inner diameter of the connecting piece C6 is not smaller than the outer diameter of the main shaft 3, four holes are uniformly arranged on the connecting piece C6, and a ring is arranged at one end of the tie rod 2, and the ring passes through the connecting piece hole on C6.

A shrapnel 7 is installed in the upper part of the main shaft 3, and the shrapnel 7 is composed of a spring and a sheet-like object. One end of the sheet-like object is fixed on the inner wall of the main shaft 3, and one end of the spring is connected with the middle of the sheet-like object. One end is arranged on the inner wall of the main shaft 3 .

The lower part of the main shaft 3 is provided with a hook 8, one end of the hook 8 is curved, and the other end is fixedly arranged on the main shaft 3 of the lower part. The included angles between adjacent stirring rods 1 are equal, centered on the main shaft 3, and distributed uniformly in a conical radial shape. The maximum opening angle between each stirring rod 1 and the main shaft 3 is 30°. The number of stirring rods 1 is four. The connecting piece B5 is fixed at the midpoint of the stirring rod 1 .

Example 2

A biogas digester mixer, comprising a stirring rod 1, a pull rod 2, and a main shaft 3, the top of the main shaft 3 is fixedly provided with a connecting piece A4, one end of the stirring rod 1 is connected to the connecting piece A4, and the stirring rod 1 is provided with a connecting piece B5 , the main shaft 3 is provided with a connecting piece C6 that can slide up and down along the main shaft 3, one end of the tie rod 2 is connected to the connecting piece B5, the other end of the tie rod 2 is fixed on the connecting piece C6, and the stirring rod 1 is a 4×3cm angle iron , the length is 30cm, the tie rod 2 is ￠10 steel bar, the length is 100cm, the main shaft 3 is ￠32×3.5 steel pipe, the length is 150cm.

The connector A4 is in the shape of a ring, the inner diameter of the connector A4 is not less than the outer diameter of the main shaft 3, and four holes are uniformly arranged on the connector A4, and one end of the stirring rod 1 is provided with a ring, and the ring passes through the connection hole on piece A4.

The connector B5 is composed of two fixed bars, a rod and a ring, the fixed bar is fixed and vertically connected with the stirring rod 1, a bar is fixedly connected between the two fixed bars, and a ring is set on the bar, and the ring and the stirring rod 1 are fixed and vertically connected. The tie rod 2 is connected.

The connecting piece C6 is in the shape of a ring, the inner diameter of the connecting piece C6 is not smaller than the outer diameter of the main shaft 3, four holes are uniformly arranged on the connecting piece C6, and a ring is arranged at one end of the tie rod 2, and the ring passes through the connecting piece hole on C6.

A shrapnel 7 is installed in the upper part of the main shaft 3, and the shrapnel 7 is composed of a spring and a sheet-like object. One end of the sheet-like object is fixed on the inner wall of the main shaft 3, and one end of the spring is connected with the middle of the sheet-like object. One end is arranged on the inner wall of the main shaft 3 .

The lower part of the main shaft 3 is provided with a hook 8, one end of the hook 8 is curved, and the other end is fixedly arranged on the main shaft 3 of the lower part. The included angles between adjacent stirring rods 1 are equal, centered on the main shaft 3, and distributed uniformly in a conical radial shape. The maximum opening angle between each stirring rod 1 and the main shaft 3 is 60°. The number of stirring rods 1 is four. The connecting piece B5 is fixed at the midpoint of the stirring rod 1 .

Example 3

A biogas digester mixer, comprising a stirring rod 1, a pull rod 2, and a main shaft 3, the top of the main shaft 3 is fixedly provided with a connecting piece A4, one end of the stirring rod 1 is connected to the connecting piece A4, and the stirring rod 1 is provided with a connecting piece B5 , the main shaft 3 is provided with a connecting piece C6 that can slide up and down along the main shaft 3, one end of the tie rod 2 is connected to the connecting piece B5, the other end of the tie rod 2 is fixed on the connecting piece C6, and the stirring rod 1 is a 4×3cm angle iron , the length is 30cm, the tie rod 2 is ￠10 steel bar, the length is 100cm, the main shaft 3 is ￠32×3.5 steel pipe, the length is 150cm.

The connector A4 is in the shape of a ring, the inner diameter of the connector A4 is not less than the outer diameter of the main shaft 3, and four holes are uniformly arranged on the connector A4, and one end of the stirring rod 1 is provided with a ring, and the ring passes through the connection hole on piece A4.

The connector B5 is composed of two fixed bars, a rod and a ring, the fixed bar is fixed and vertically connected with the stirring rod 1, a bar is fixedly connected between the two fixed bars, and a ring is set on the bar, and the ring and the stirring rod 1 are fixed and vertically connected. The tie rod 2 is connected.

The connecting piece C6 is in the shape of a ring, the inner diameter of the connecting piece C6 is not smaller than the outer diameter of the main shaft 3, four holes are uniformly arranged on the connecting piece C6, and a ring is arranged at one end of the tie rod 2, and the ring passes through the connecting piece hole on C6.

A shrapnel 7 is installed in the upper part of the main shaft 3, and the shrapnel 7 is composed of a spring and a sheet-like object. One end of the sheet-like object is fixed on the inner wall of the main shaft 3, and one end of the spring is connected with the middle of the sheet-like object. One end is arranged on the inner wall of the main shaft 3 .

The lower part of the main shaft 3 is provided with a hook 8, one end of the hook 8 is curved, and the other end is fixedly arranged on the main shaft 3 of the lower part. The included angles between adjacent stirring rods 1 are equal, centered on the main shaft 3, and distributed uniformly in a conical radial shape. The maximum opening angle between each stirring rod 1 and the main shaft 3 is 45°. The number of stirring rods 1 is four. The connecting piece B5 is fixed at the midpoint of the stirring rod 1 .

Claims (9)

1. A biogas tank agitator, comprising a stirring rod, a pull rod, and a main shaft, is characterized in that the top of the main shaft is fixedly provided with a connector A, and one end of the stirring rod is connected to the connector A, and the stirring rod is set There is a connecting piece B, and a connecting piece C that can slide up and down along the main shaft is arranged on the main shaft. One end of the pull rod is connected to the connecting piece B, and the other end of the pulling rod is fixed on the connecting piece C. 2. The biogas digester mixer as claimed in claim 1, characterized in that, said stirring rods are 4×3cm angle irons with a length of 30cm, said pull rods are ￠10 steel bars with a length of 100cm, said The pull rod is ￠32×3.5 steel pipe with a length of 150cm. 3. The biogas digester agitator according to claim 1, characterized in that a shrapnel is installed in the upper part of the main shaft. 4. The biogas digester agitator according to claim 1, characterized in that, the lower part of the main shaft is provided with a hook. 5. The biogas digester agitator according to claim 1, wherein the included angles between adjacent stirring rods are equal; the maximum opening angle between the stirring rods and the main shaft is 30°-60°. 6. The biogas digester agitator according to claim 1, characterized in that, the connecting piece A is in the shape of a ring, the inner diameter of the connecting piece A is not less than the outer diameter of the main shaft, and the uniform surface of the connecting piece A is There are four holes, and a circular ring is provided at one end of the stirring rod, and the circular ring passes through the holes on the connecting piece A. 7. The biogas digester mixer as claimed in claim 1, characterized in that, said connector B consists of two fixing bars, a rod and a ring, the fixing bars are fixed and vertically connected with the stirring rod, and the two fixing bars A bar is fixedly connected between them, and a ring is sheathed on the bar, and the ring is connected with the pull bar. 8. The biogas digester agitator according to claim 1, characterized in that, the connecting piece C is in the shape of a ring, the inner diameter of the connecting piece C is not less than the outer diameter of the main shaft, and the uniform surface of the connecting piece C is There are four holes, and a circular ring is provided at one end of the pull rod, and the circular ring passes through the holes on the connector C. 9. The biogas digester agitator according to claim 3, characterized in that, said shrapnel is composed of a spring and a sheet-like object, one end of said sheet-like object is fixed on the inner wall of the main shaft, and one end of the spring is connected to the sheet The middle part of the shape object is connected, and the other end of the spring is arranged on the inner wall of the main shaft.

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