CN204569915U - Complete mixing Anaerobic reactor - Google Patents

Abstract

The utility model relates to a kind of mixing anaerobic reactor completely, belong to methane engineering technology field, comprise housing, water distribution system, triphase separator and whipping appts is provided with in housing, described inner walls is provided with the wiper ring of annular, wiper ring upper end is connected with the second lifting motor with the first lifting motor being fixed on housing upper end respectively, and the first lifting motor and the second lifting motor are symmetrically distributed in both sides; Whipping appts comprises the agitator motor be fixed on housing, stir shaft and along stir shaft arrange on stir leaf and under stir leaf.This complete mixing anaerobic reactor, by arranging wiper ring, the first lifting motor and the second lifting motor, is cleared up inner walls, is avoided inwall impurity layer blocked up, improve biogas yield.

Description

fully mixed anaerobic reactor

technical field

The utility model relates to a completely mixed anaerobic reactor, which belongs to the technical field of biogas engineering.

Background technique

In the biogas project, the straw, all kinds of livestock and poultry manure and other organic matter mixture are fed into the complete mixing anaerobic reactor, and after mechanical stirring, they are fully fermented to produce biogas. Therefore, the complete mixing anaerobic reactor is one of the key equipment. The existing fully mixed anaerobic reactor is usually stirred when feeding, but for the high-concentration raw material liquid containing relatively high solids, the stirring is not sufficient and uniform. In addition, during the long-term fermentation process of the biogas device, the inner wall of the shell is easily Adhering to the mixture affects the efficiency of biogas production, resulting in low biogas production.

Utility model content

According to the deficiencies of the prior art above, the technical problem to be solved by the utility model is: to provide a fully mixed anaerobic reactor to mix the fermented liquid evenly, to regularly clean the inner wall of the shell, and to increase the yield of biogas.

The fully mixed anaerobic reactor described in the utility model includes a shell, which is provided with a water distribution system, a three-phase separator and a stirring device. The inner wall of the shell is provided with an annular cleaning ring, and the upper ends of the cleaning ring are respectively It is connected with the first lifting motor and the second lifting motor fixed on the upper end of the shell, and the first lifting motor and the second lifting motor are symmetrically distributed on both sides; the stirring device includes a stirring motor fixed on the shell, a stirring shaft and a stirring shaft along the The upper stirring blade and the lower stirring blade arranged by the shaft.

By setting the cleaning ring, when the equipment is used for a certain period of time, the mixture impurities attached to the inner wall of the shell are thicker, and the cleaning ring is driven up and down by the first lifting motor and the second lifting motor to clean the inner wall of the shell to avoid excessive impurities on the inner wall. thick, affecting the biogas yield. The bottom and rising middle of the mixed solution are stirred by the upper stirring blade and the lower stirring blade respectively, so that it can fully mix with the fermentation bacteria in the sludge to achieve the best biogas yield.

A slag outlet is provided in the middle of the bottom of the shell, and the biogas residue is discharged through the slag outlet.

The three-phase separator consists of a conical body, an air chamber and an air outlet are arranged in the conical body, and the first baffle plate, the second baffle plate, the third baffle plate and the fourth The baffles, the first baffles, the second baffles, the third baffles and the fourth baffles connected to each baffle are sequentially arranged inside each baffle, and the first baffles and the first baffles form a second baffle. The first flow cavity, the second baffle and the second baffle form the second flow cavity, the third baffle and the third baffle form the second flow cavity, and the fourth baffle and the fourth baffle form the first flow cavity. There are four flow chambers, a deflector is provided between two adjacent fourth deflectors, and a return slot is provided between the guide and the fourth deflector. By setting the first flow chamber, the second flow chamber, the third flow chamber and the fourth flow chamber, when the mixed liquid flows through the three-phase separator, it will be deflected multiple times in multiple flow chambers, and the large air bubbles in it will be completely eliminated. Crushed to avoid large air bubbles carrying sludge, the sludge continuously settles during the deflection process, and finally flows back through the return slot, and the gas is discharged and collected through the air chamber. The solid-liquid-gas three-phase separation is complete, and the sludge can be effectively throttled, so as to improve the service life of the sludge, avoid the loss of microorganisms in the sludge, and increase the biogas production.

The cross-sectional areas of the first flow chamber, the second flow chamber, the third flow chamber, and the fourth flow chamber increase sequentially, and the flow velocity of the mixed liquid is gradually slowed down through the sequentially increased four flow chambers, which is beneficial to the sludge deposition.

The first baffle and the third baffle are arranged vertically, the second baffle and the fourth baffle are arranged obliquely, and the first baffle, the second baffle, and the third baffle are arranged vertically. The baffle and the fourth baffle correspond to the first baffle, the second baffle, the third baffle and the fourth baffle respectively.

The clearance of the return slot is smaller than that of the first flow cavity, so that the mixed liquid flows back through the first flow cavity, and the sludge flows back through the return slot.

The mixed liquid of straw, all kinds of livestock and poultry manure and other organic matter is sent to the bottom of the shell through the water inlet, and is evenly distributed through the water distribution system. The mixed liquid and sludge are mixed evenly and fully, and the resulting gas-liquid-solid mixture is separated by a three-phase separator, the biogas is discharged from the gas collection pipe and the exhaust port, the solid is settled and refluxed through the sedimentation tank, and the liquid is discharged through the upper water outlet.

Compared with the prior art, the utility model has the beneficial effects of:

The fully mixed anaerobic reactor cleans the inner wall of the shell by setting the cleaning ring, the first lifting motor and the second lifting motor, so as to avoid the impurity layer on the inner wall from being too thick and improve the biogas production rate; the upper stirring blade and the lower stirring blade respectively Stir the bottom and rising middle of the mixed liquid to fully mix with the fermentation bacteria in the sludge to achieve the best biogas yield; by setting the first flow chamber, the second flow chamber, the third flow chamber and the fourth flow chamber The cavity completely eliminates the large air bubbles in the mixed liquid, completely separates the three phases, effectively improves the service life of the sludge, increases the biogas output, and improves the treatment efficiency.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is a schematic diagram of the structure of a three-phase separator.

In the figure: 1. Shell; 2. Cleaning ring; 3. The first lifting motor; 4. Gas collecting pipe; 5. Three-phase separator; 5.1. Air chamber; 5.2. Cone body; 5.3. First deflector; 5.4, the second flow guide plate; 5.5, the third flow guide plate; 5.6, the fourth flow guide plate; 5.7, the first flow cavity; 5.8, the second flow cavity; 5.9, the third flow cavity; 5.10, the fourth flow cavity ; 5.11, the first baffle; 5.12, the second baffle; 5.13, the third baffle; 5.14, the fourth baffle; The second lifting motor; 8, exhaust port; 9, stirring shaft; 10, upper stirring blade; 11, lower stirring blade; 12, slag discharge port; 13, water inlet; 14, water distribution system.

Detailed ways

Embodiments of the utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the fully mixed anaerobic reactor includes a shell 1, which is provided with a water distribution system 14, a three-phase separator 5 and a stirring device, and the inner wall of the shell 1 is provided with an annular cleaning ring 2, The upper end of the cleaning ring 2 is respectively connected with the first lifting motor 3 and the second lifting motor 7 fixed on the upper end of the housing 1, and the first lifting motor 3 and the second lifting motor 7 are symmetrically distributed on both sides; 1 Stirring motor 6 at the top, the lower end of the stirring motor 6 is connected to the stirring shaft 9, the bottom of the stirring shaft is provided with the lower stirring blade 11, and the middle part is provided with the upper stirring blade 10, so as to fully stir the mixed liquid in the shell and mix evenly. A slag outlet 12 is provided in the middle of the bottom of the shell 1 through which the generated biogas residue is discharged.

As shown in Figure 2, the three-phase separator includes a conical body 5.2, which is provided with an air chamber 5.1 and an air outlet. Plate 5.12, the third baffle 5.13 and the fourth baffle 5.14, the first baffle 5.3, the second baffle 5.4, the third baffle 5.5 and the fourth baffle are sequentially arranged inside each baffle The baffle 5.6, the first baffle 5.11 and the first baffle 5.3 form the first flow cavity 5.7, the second baffle 5.12 and the second baffle 5.4 form the second flow cavity 5.8, the third baffle 5.13 and the The third baffle 5.5 forms the second flow cavity 5.8, the fourth baffle 5.14 and the fourth baffle 5.6 form the fourth flow cavity 5.10, the first flow cavity 5.7, the second flow cavity 5.8, the third flow cavity 5.9, The cross-sectional area of the fourth flow chamber 5.10 increases successively. During the flow of the mixed liquid, the flow velocity gradually slows down, so that the sludge in it gradually settles, and the large air bubbles in the mixed liquid are broken during the multiple baffles. A deflector 5.16 is provided between the adjacent two fourth deflectors 5.6, and a return slot 5.15 is provided between the guide body 5.16 and the fourth deflector 5.6. Most of them flow along the first flow chamber 5.7 to ensure the collection and backflow of biogas.

The first baffle 5.11 and the third baffle 5.13 are arranged vertically, the second baffle 5.12 and the fourth baffle 5.14 are arranged obliquely, the first baffle 5.3, the second baffle 5.4, The third deflector 5.5 and the fourth deflector 5.6 correspond to the first deflector 5.11, the second deflector 5.12, the third deflector 5.13 and the fourth deflector 5.14 respectively.

work process:

The mixed liquid of straw, all kinds of livestock and poultry manure and other organic matter is sent to the bottom of the housing 1 through the water inlet 13, and is evenly distributed through the water distribution system 14. The stirring motor 6 drives the stirring shaft 9 to rotate, and the upper stirring blade 10, the lower stirring The common stirring of the leaves 11 makes the mixed liquid and the sludge mix evenly and fully, and the generated gas-liquid-solid mixture is separated by a three-phase separator, the biogas is discharged from the gas collection pipe 4 and the exhaust port 8, the solid matter is precipitated and refluxed through the sedimentation tank, and the liquid Discharge through the upper outlet.

Claims (6)

1. a completely mixed anaerobic reactor, comprising a shell (1), is provided with a water distribution system (14), a three-phase separator (5) and a stirring device in the shell (1), is characterized in that: the The inner wall of the housing (1) is provided with an annular cleaning ring (2), and the upper end of the cleaning ring (2) is respectively connected with the first lifting motor (3) and the second lifting motor (7) fixed on the upper end of the housing (1) , the first lifting motor (3) and the second lifting motor (7) are symmetrically distributed on both sides; the stirring device includes a stirring motor (6) fixed on the housing (1), a stirring shaft (9) and a stirring shaft ( 9) the upper stirring blade (10) and the lower stirring blade (11) of arrangement. 2. The complete mixing anaerobic reactor according to claim 1, characterized in that: a slagging outlet (12) is provided in the middle of the bottom of the shell (1). 3. The completely mixed anaerobic reactor according to claim 1, characterized in that: the three-phase separator comprises a cone (5.2), and the cone (5.2) is provided with an air chamber (5.1) and an air outlet , a first baffle (5.11), a second baffle (5.12), a third baffle (5.13) and a fourth baffle (5.14) are sequentially arranged downwards around the bottom of the cone (5.2), The first deflector (5.3), the second deflector (5.4), the third deflector (5.5) and the fourth deflector (5.6) connected to each deflector are arranged in sequence, and the first deflector (5.11) and the first baffle (5.3) form the first flow cavity (5.7), the second baffle (5.12) and the second baffle (5.4) form the second flow cavity (5.8), and the third baffle The plate (5.13) and the third baffle (5.5) form the second flow cavity (5.8), the fourth baffle (5.14) and the fourth baffle (5.6) form the fourth flow cavity (5.10), and the adjacent A guide body (5.16) is provided between the two fourth guide plates (5.6), and a return slot (5.15) is provided between the guide body (5.16) and the fourth guide plate (5.6). 4. The completely mixed anaerobic reactor according to claim 3, characterized in that: the first flow chamber (5.7), the second flow chamber (5.8), the third flow chamber (5.9), the fourth flow chamber (5.10) The cross-sectional area increases sequentially. 5. The completely mixed anaerobic reactor according to claim 3 or 4, characterized in that: the first baffle (5.11) and the third baffle (5.13) are vertically arranged, and the second baffle The baffle (5.12) and the fourth baffle (5.14) are arranged obliquely, the first baffle (5.3), the second baffle (5.4), the third baffle (5.5) and the fourth baffle The plates (5.6) respectively correspond to the first baffle (5.11), the second baffle (5.12), the third baffle (5.13) and the fourth baffle (5.14). 6. The completely mixed anaerobic reactor according to claim 3, characterized in that: the clearance of the return slot (5.15) is smaller than the clearance of the first flow chamber (5.7).