CN201182978Y - Biogas digester broken shell mixer - Google Patents

Abstract

The utility model discloses a broken-shell stirrer for a biogas pool, which is composed of a support frame, a stirring blade, a horizontal transmission shaft, a vertical transmission shaft, 2 pairs of bevel gears, and a rotating handle with a lever; the rotating handle 7 passes through the hinge ( 12) It is connected with the horizontal transmission shaft (13), and the horizontal rotation is converted into vertical rotation through 2 pairs of meshed bevel gears, and then converted into the rotation of the upper horizontal shaft, so that the blades on the shaft can complete the functions of shell breaking and stirring. The agitator of this technology 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 tank, and at the same time improves the gas output rate of the biogas tank and solves the difficulty of discharging waste materials from the tank. Proved by the inventor, the agitator is easy to use and cheap in price. Since several parts of the rotating shaft are installed with sealed plastic ball bearings, and the bevel gear is installed with a slag-proof box, the problem of gear jamming caused by residue intrusion is eliminated, and the agitation can be maintained. long-term normal operation of the device.

Description

Biogas digester broken shell mixer

technical field

The utility model relates to equipment used in biogas pits, in particular to a stirrer for shell breaking and slag removal for biogas pits.

Background technique:

The extensive use of biogas digesters in rural areas of our country has made a great contribution to the construction of new socialist countryside and to solving the problems of burning firewood and fuel in some rural areas. It also has great environmental significance. If the biogas digester is used for a period of time, crusts will form on the liquid surface, and the residues that have not been fully fermented and decomposed will accumulate at the bottom, reducing the effective volume and efficiency of the biogas digester. Pay attention to breaking the shell and removing slag. In order to maintain normal use, in the past, the shell of the biogas digester and the slag removal had to be opened to clean the shell. During the cleaning process, the use of biogas had to be interrupted. This is one of the shortcomings of the biogas digester structure. People try to change the structure to change this situation. At present, more consideration is to use the biogas digester to break the shell and remove the slag, and use the pipeline to pump out the slag-containing liquid from the lower part of the biogas digester. These technical solutions are reflected in the literature of Chinese patents. , Quantity is still quite a lot, and application number is 90226906.2, and the utility model that the name is called " manpower agitator for digester " is made of base, blade shaft, sleeve, transmission shaft, blade, handle. According to reports, the agitator has a simple structure and is easy to install. Using it solves the problems of crusting on the surface of the biogas tank and silting at the bottom, and at the same time improves the gas output rate of the biogas tank and the difficulty of discharging waste from the tank. The application number is 200420033956.3, and the name is "Small Biogas Pool Mixer". This small biogas tank mixer has two upper and lower rings, which are connected into a barrel shape by three connecting rods. There are casing and main rod in the middle of the rod. There is a sealing tube between the casing and the main rod. There are three back pressure plates between the casing and the lower ring. There is a shell breaking rod between the casing and the upper ring. The shell fork has a handle on the main rod; according to reports, using the biogas digester agitator described in this utility model can effectively solve the problem that the bottom of the biogas digester is prone to sedimentation and the liquid surface of the biogas digester is prone to crusting during the use of the biogas digester, so as to achieve the biogas digester. The purpose of long-term normal use is to increase the gas production rate. In addition, the application number is 200620050668.8, and the name is "Special Stirrer for Biogas Pool". Its main mechanism includes a single-phase micro-motor and stirring blades. The working process is controlled by an automatic timing start controller, and the stirring blades are keyed to the output shaft of the micro-motor. , The outer rotary cutting part of the blade is designed with arc, involute or other curves, the edge is made into a sharp cutting edge, and the miniature motor shaft is fixedly connected with the stirring blade by a round head nut. The agitator is installed vertically on the protruding shoulder at the center of the bottom of the biogas digester and fixed by embedded bolts. Its characteristic is that it can mix all kinds of biogas-generating materials in the biogas tank evenly, and at the same time, it can cut and chop fibrous materials, improve the gas production rate, accelerate the biogas generation, and often ensure the normal gas production in the biogas tank. It has reliable working performance and low power consumption. It can automatically control the working process, and is suitable for automatic mixing in various large, medium and small biogas digesters in rural areas and cities. Also have application number to be 200620093325.X, title is called " methane tank stirring device ". Through retrieval, do not have identical structure with the present invention, these inventive methods have to use electric motor, the structure that has is still more complicated, and the long-term use that has has is easy to produce breakdown after examining.

Contents of the invention

The purpose of this utility model is to solve the defects of the previous biogas tank breaking shell and slag removing agitator, due to electric or complex structure and corrosion, it is necessary to replace the used parts after a period of time, resulting in inconvenience, etc., through the inventor's repeated design The above problems have been solved by using some anti-corrosion materials in the test.

The utility model adopts the following technical scheme, a broken-shell agitator for a biogas pool, which is composed of a support frame, a blade, a horizontal transmission shaft, a vertical transmission shaft, 2 pairs of bevel gears, and a rotating handle with a lever; the rotating handle 7. It is connected with the horizontal transmission shaft 13 through the hinge 12. Two sealed ball bearings 21 are installed in the hinge 12. The other end of the horizontal transmission shaft 13 is equipped with a vertical bevel gear 14. The end of the shaft is fixed on the ball bearing 21. The bearing 21 is seated again Fixed on the bracket, the vertical bevel gear 14 on the horizontal transmission shaft 13 meshes with the horizontal bevel gear 16 on the vertical shaft 15 to form a working state, and the lower part of the vertical transmission shaft 15 is equipped with 2 pairs of blades 9 for stirring the sediment, and the vertical transmission shaft The upper end of 15 is equipped with a horizontal bevel gear 18 and the vertical axis bevel gear 20 mounted on the upper horizontal transmission shaft 19 meshes into a working state, and the shell-breaking blade 8 is also installed on the upper horizontal transmission shaft 19, and 2 pairs of umbrellas mesh into a working state. Gear is all packaged with anti-slag box 17 respectively outside gear, and the rotating handle driving lever 10 installed will be able to stir the driving lever 11 on the horizontal drive shaft.

A broken-shell stirrer for a biogas digester, wherein there are five driving rods 10 on the turning handle, and four driving rods 11 on the horizontal transmission shaft.

The agitator of the utility model has a simple structure and is easy to install. Using it solves the problems of crusting on the surface and bottom layer of the biogas tank, improves the gas output rate of the biogas tank and solves the difficulty of waste materials from the tank. At the same time, it can fully stir the solution in the tank. Stir all kinds of biogas-generating materials in the biogas digester evenly to speed up the fermentation to generate biogas. The inventor's trial proved that the agitator is easy to use and cheap. Since several parts of the rotating shaft are installed with sealed plastic ball bearings, and the bevel gear is installed with a slag-proof box, the problem of the intrusion of residues that causes the gears to be stuck is eliminated. Prolonged normal operation of the mixer.

Description of drawings

Figure 1 is a schematic diagram of placement of a biogas digester broken shell agitator in biogas;

Fig. 2 is a structural schematic diagram of a biogas digester shell breaking agitator;

Fig. 3 is a partially enlarged schematic diagram of the transmission A-A of the biogas digester shell breaking agitator;

Fig. 4 is a partially enlarged schematic diagram of the transmission B-B of the shell-breaking agitator of the biogas digester;

Fig. 5 is a partially enlarged schematic diagram of the transmission C-C of the shell breaking agitator of the biogas digester.

In Figures 1 to 5, 1. Digester, 2. Stirrer bracket, 3. Digester liquid level, 4. Air pipe, 5. Feeding port, 6. Water seal pool, 7. Turn handle, 8. Shell breaking blade, 9. stirring sediment blade, 10. turning handle lever, 11. horizontal transmission shaft driven lever, 12. hinge connecting rotating handle and horizontal transmission shaft, 13. horizontal transmission shaft, 14. horizontal transmission shaft 15. vertical transmission shaft, 16. lower horizontal bevel gear of vertical transmission shaft, 17. anti-slag box, 18. upper horizontal bevel gear of vertical transmission shaft, 19. upper horizontal transmission shaft, 20. upper level The vertical bevel gear of power transmission shaft, 21. ball bearing, 22. bearing pin.

Detailed ways

Example 1, according to the technical scheme of the invention, the biogas tank broken shell agitator assembled in the biogas tank 1, after extending the turning handle 10 upward from the bottom of the water-sealed pool 6, install the turning handle, install the liquid suction pipe, and the nozzle 20-40cm away from the bottom of the pool, leading out of the pool. Turn the rotary handle of the agitator and its lever 10 to move the upper lever 11 of the horizontal transmission shaft, which drives the vertical bevel gear 14 of the horizontal transmission shaft to drive the lower horizontal bevel gear 16 on the vertical transmission shaft, and the rotation of the vertical transmission shaft drives the stirring sediment blade 9 Rotate to stir the sediment in the lower part of the pool, and the liquid suction pipe draws out the slag-containing liquid at the bottom, which is very convenient. Simultaneously, the horizontal bevel gear 18 on the vertical transmission shaft at the top of the vertical transmission shaft 15 drives the upper vertical bevel gear 20 to rotate, and the broken shell blade 8 on the upper horizontal transmission shaft 19 of the rotation also rotates thereupon. The shell of the knot is broken, and the two functions of shell breaking and slag removal of the biogas digester are completed.

Due to the adoption of the plastic anti-slag box 17 and the sealed plastic ball bearing 21, the agitator for breaking the shell of the biogas digester and removing the slag is easy to rotate, and the transmission part is not easy to be stuck by the slag, and the normal service time is long.

Claims (2)

1. A shell-breaking stirrer for a biogas digester is characterized in that it is composed of a support frame, blades, a horizontal transmission shaft, a vertical transmission shaft, 2 pairs of bevel gears, and a rotating handle with a driving lever; the rotating handle 7 passes through the hinge (12 ) is connected with the horizontal transmission shaft (13), two sealed ball bearings (21) are installed in the hinge (12), the other end of the horizontal transmission shaft (13) is equipped with a vertical bevel gear (14), and the end of the shaft is fixed on the ball bearing (21), the bearing (21) seat is fixed on the support again, and the vertical bevel gear (14) on the horizontal transmission shaft (13) is engaged with the horizontal bevel gear (16) on the vertical shaft (15) to form a working state , the bottom of the vertical drive shaft (15) is equipped with 2 pairs of blades (9) for stirring sediment, the upper end of the vertical drive shaft (15) is equipped with a horizontal bevel gear (18) and a vertical shaft umbrella mounted on the upper horizontal drive shaft (19) The gears (20) are meshed into the working state, and the shell-breaking blades (8) are also installed on the upper horizontal drive shaft (19), and the 2 pairs of bevel gears meshed into the working state are respectively packaged with the slag-proof box (17). A good turning handle driving lever (10) will be able to stir the driving lever (11) on the horizontal transmission shaft. 2. A shell breaking mixer for a biogas digester according to claim 1, characterized in that there are five driving rods (10) on the turning handle and four driving rods (11) on the horizontal transmission shaft.

Images