CN201930627U - Biogas slurry and residue separator - Google Patents

Abstract

The utility model discloses a biogas slurry and biogas residue separator, which comprises a biogas slurry and biogas residue separation device. The biogas slurry and biogas residue separation device is composed of a biogas slurry filtering device and a biogas slag extruding device. One end of the filter shaft is connected with the power device, and the other end is fixedly connected with the filter screen through the filter screen disc set at the shaft end. The biogas residue extrusion device is composed of a hollow shaft and a hollow shaft head , one end of the hollow shaft is connected with the power device, and the other end is fixedly connected with one end of the hollow shaft head, a segmented helical blade is fixedly arranged on the side surface of the hollow shaft head, and the hollow shaft and the filter shaft are coaxially arranged , the hollow shaft shaft head extends into the filter screen to match the filter screen, a first gap is provided between the end face of the hollow shaft shaft head and the filter screen shaft disc, and a second gap is provided between the spiral blade and the filter screen , The biogas slurry and biogas residue separator of the utility model can effectively separate biogas slurry and biogas residue.

Description

Biogas slurry and residue separator

technical field

The utility model relates to a device for separating biogas slurry and residue, in particular to a biogas slurry and residue separator for separating residual biogas residue in biogas slurry which has been preliminarily treated.

Background technique

The function of biogas slurry and residue separation equipment is mainly to separate the biogas slurry that has been preliminarily treated, so that the residual biogas residue can be highly filtered, and the sewage can meet the standards of self-use and further treatment and discharge. Currently used biogas slurry and biogas residue separation equipment is mainly composed of fixed filter screen, screw shaft, cylinder, frame, power and other parts. The biogas slurry is rotated and pushed out, and the biogas slurry is precipitated by extrusion. After separation, the biogas slurry has a high slag content and the sewage is turbid. It is far away from the discharge and living utilization standards, and the value of the biogas slurry cannot be fully utilized. clogged.

Contents of the invention

The purpose of the utility model is to provide a method to further separate the residual biogas residue in the biogas slurry to obtain a purer biogas residue, aiming at the shortcomings of the biogas slurry and biogas residue separator in the prior art, such as poor separation effect and easy blockage of the filter screen. Liquid biogas residue and biogas slurry separator, so as to meet the needs of further processing of biogas slurry or meet discharge standards.

The purpose of this utility model is achieved through the following technical solutions:

A biogas slurry and residue separator, including a casing with a discharge channel, and a biogas slurry and residue separation device. The biogas slurry and residue separation device is composed of a biogas slurry filtering device and a biogas residue extrusion device. The biogas slurry filtering device is composed of a filter screen shaft and a filter screen. One end of the filter screen shaft is connected to the power device, and the other end is fixedly connected to the filter screen through the filter screen shaft plate set at the shaft end. The biogas residue extrusion device It consists of a hollow shaft and a hollow shaft head. One end of the hollow shaft is connected to the power device, and the other end is fixedly connected to one end of the hollow shaft head. The side surface of the hollow shaft head is fixedly provided with a segmented spiral The blade, the hollow shaft and the filter shaft are coaxially arranged, the hollow shaft shaft head extends into the filter screen to match the filter screen, and a first A gap, a second gap is provided between the helical blade and the filter screen;

One end of the shaft head of the hollow shaft facing the shaft disc of the filter screen is provided with a bell-shaped concave hole communicating with the central hole of the hollow shaft;

The shaft head of the hollow shaft is in the shape of a truncated cone, and its small-diameter end faces the shaft disk of the filter screen to match it, and the filter screen is in the shape of a truncated cone;

The rotation direction of the filter screen shaft is opposite to that of the hollow shaft;

The end face of the filter shaft plate facing the hollow shaft head is provided with a conical apex coaxial with the filter screen axis, and the conical apex angle β of the apex is equal to the conical apex angle b of the concave hole;

The conical vertex angle b of the concave hole is 100-120°;

The spiral blade is inclined towards the feed end of the hollow shaft, and the inclination c between it and the end face of the hollow shaft head is 15°-25°;

The included angle d between the busbar of the hollow shaft head and its axis is 0-10°, matching it, and the inclination angle α of the busbar of the filter screen 17 relative to its axis is 0-10°;

The filter screen is a bar-shaped net composed of filter screen bars, and a filter screen reinforcement ring is arranged on the outer surface of the bar-shaped screen, and the inner circumferential surface of the filter screen reinforcement ring is provided with teeth that match the filter screen bars. , the teeth protrude into the filter screen, and the filter screen is fixedly connected by the filter screen bars provided on it and the teeth provided on the inner surface of the filter screen reinforcement ring;

Both the hollow shaft and the filter shaft are supported by bearings, the hollow shaft bearing seat supporting the hollow shaft and the filter shaft bearing seat supporting the filter shaft are both cylindrical, and the hollow shaft and the filter shaft pass through the hollow shaft respectively. Shaft bearing housing and screen shaft bearing housing.

Because the biogas slurry raw material of the utility model flows from one end of the hollow shaft to the bell mouth-shaped inner concave hole, and then enters the first gap formed by the hollow shaft shaft head and the filter screen shaft plate into the side surface of the hollow shaft shaft head and the filter screen. In the second gap, the biogas residue larger than the filter mesh is driven by the spiral blade from one end of the hollow shaft head with a bell-shaped concave hole to the other end of the hollow shaft head and discharged from this end, while Particles and biogas slurry that are smaller than the mesh of the filter are discharged through the mesh of the filter, and are thrown out of the filter under the action of centrifugal force and collected in the biogas slurry discharge channel, thereby realizing the separation of biogas slurry and biogas residue.

Description of drawings

Fig. 1 is the schematic diagram of the embodiment of the biogas slurry and residue separator of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a structural schematic diagram of an embodiment of a biogas slurry filtering device of the present invention;

Fig. 4 is a structural schematic diagram of an embodiment of a biogas residue extrusion device of the present invention;

Figure 5 is a cross-sectional view of the top view of Figure 4;

Figure 6 is an enlarged view of part I;

Fig. 7 is a structural schematic diagram of the filter screen of the present invention;

The right view of Figure 8 and Figure 7;

Fig. 9 is a schematic structural view of the filter screen reinforcement ring;

Fig. 10 is a schematic structural view of a filter screen with a filter screen reinforcement ring;

Fig. 11 is a schematic diagram of the top structure of the utility model;

FIG. 12 is a top view of FIG. 11 .

Description of reference signs: 2-front end cover; 3-filter screen shaft bearing seat; 4-filter screen shaft; 6-filter screen shaft disc; 7-spiral blade; 11-hollow shaft; 15-rear end cover; 16-top; 17-filter; 18-filter reinforcement ring; 21-casing; 22-discharge channel; 23-inner concave hole; 24-hollow shaft head; 25-the first gap; 26-the second gap; 27-teeth; 28-filter mesh bar.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Figure 1-10, the biogas slurry and biogas slag separator in the embodiment of the utility model is composed of three parts. A biogas slurry and biogas residue separation device composed of a liquid filter device and a biogas residue extrusion device. The biogas slurry filter device is composed of a filter screen shaft 4 and a filter screen 17. One end of the filter screen shaft 4 is connected to the first power device, and the other end is passed through it. The filter screen shaft disk 6 provided at the shaft end is fixedly connected with the filter screen 17, and the biogas residue extruding device is composed of a hollow shaft 11 and a hollow shaft shaft head 24. One end of the hollow shaft 11 is connected with the second power device, and the other end is connected with the hollow shaft. The shaft head 24 is fixedly connected, and the side surface of the hollow shaft head 24 is fixedly provided with segmented and spaced helical blades 7. One end of the hollow shaft head 24 is welded to the end of the hollow shaft 11, and the other end is provided with Bell-mouth-shaped inner concave hole 23, the spiral blade 7 is inclined to the bell-mouth direction, and the hollow shaft shaft head 24 stretches into the filter screen 17, between the end face of the bell-mouth-shaped inner concave hole 23 and the end face of the filter screen shaft disk 6 and There is a gap between the inner surface of the filter screen 17 and the outer surface of the hollow shaft head 24, the first gap formed between the inner hole of the hollow shaft 11, the bell-shaped concave hole 23, the hollow shaft head 24 and the filter screen shaft disc 6 25. The second gap 26 formed between the filter screen 17 and the hollow shaft head 24 forms a circulation channel for biogas slurry raw materials, and the filter screen shaft 4 is coaxially arranged with the hollow shaft 11, so that the hollow shaft 11 and the filter screen shaft 4 can be moved along the Rotate on the same axis, so that the hollow shaft shaft head 24 and the filter screen 17 rotate coaxially. The filter screen 17 and the hollow shaft shaft head 24 are preferably all arranged in a matching truncated conical shape. The large diameter end faces the hollow shaft 11 ends, and the small diameter end faces The filter shaft 4 and the filter screen 17 are arranged in a truncated conical shape. When the filter screen 17 rotates at a high speed, the closer it is to the large diameter end, the higher its circumferential speed will be. When the blade 7 is discharged toward the large-diameter end, the closer to the end face, the greater the linear velocity and the greater the centrifugal force, which can make the biogas residue and biogas slurry more fully separated. On the end face of the filter screen shaft disk 6 facing the hollow shaft head 24, a conical tip 16 coaxial with the filter screen shaft 4 is provided, and the conical apex angle β of the apex 16 is equal to the conical apex angle b of the inner concave hole 23 In this way, a diversion channel is formed between the side surface of the top 16 and the bell-shaped concave hole 23. Under the diversion action of the top 16, the biogas slurry flows along the inclined direction of the top 16 surface, which is convenient for the dispersion of the raw material liquid Flow into the second gap 26 provided between the filter screen 17 and the hollow shaft head 24 . The second major part is the power unit of the hollow shaft 11 and the screen shaft 4. The power unit includes a first motor that drives the hollow shaft 11 to rotate and a second motor that drives the screen shaft 4 to rotate. The rotating speed of the screen shaft 4 during work is Higher than the rotational speed of the hollow shaft 11, the rotation direction of the filter screen shaft 4 is opposite to that of the hollow shaft 11, so that a rotational speed difference is formed between the filter screen 17 and the hollow shaft head 24, which is equivalent to the static rotation of the hollow shaft head 24 and the rotation of the filter screen 17. Make the separation effect of biogas slurry and biogas residue better. The front and rear two hollow shaft bearing blocks 10 of the hollow shaft 11 of the utility model are designed to be integrally cylindrical, and the front and rear two filter shaft bearing blocks 3 of the filter shaft 4 are arranged to be integrally cylindrical, and the hollow shaft bearing blocks 10 and The filter screen shaft bearing housing 3 is connected with the corresponding front end cover 2 and the rear end cover 15 to cover the hollow shaft 11 and the filter screen shaft 4, so that the whole device is safe and beautiful. The helical blade 7 is perpendicular to the outer surface of the hollow shaft shaft head 24, and the inclination c between the tangent of the helical blade 7 and the end face of the hollow shaft is 15°-25°, so that the propulsion effect of the helical blade 7 is the best. .

In the embodiment of the utility model, the filter screen 17 is a strip net made of filter strips 28. In order to enhance the firmness of the strip net and strengthen its strength, a filter reinforcement ring 18 is fixedly arranged on the outer surface of the strip net. The inner peripheral surface of the filter mesh reinforcement ring 18 is provided with teeth 27 matching the filter mesh bar 28, and the filter mesh reinforcement ring 18 is set on the outside of the filter mesh 17 and welded into one body with the filter mesh 17 during installation.

The apex angle b of the trumpet-shaped concave hole 23 is an obtuse angle, preferably 100°-120°, which is conducive to the flow of biogas slurry raw materials.

The included angle d between the generatrix of the hollow shaft head and its axis is 0-10°, matching it, and the inclination angle α of the generatrix of the filter screen 17 relative to its axis is 0-10°, which can make the separation effect better.

The gap between the filter bars 28 is determined according to the purity of the biogas slurry that needs to be obtained, and is generally set to 0.5 mm, so that only particles and liquids that are less than 0.5 mm can pass through.

In order to make the filter residue be discharged from the filter screen 17 more cleanly, the screw blade 7 is exposed at the open end of the filter screen shaft 4, that is, the hollow shaft shaft head 24 is not fully loaded into the filter screen 17, and a part is exposed outside the filter screen 17 , forming the biogas residue discharge end 8.

The third major part is the frame supporting the biogas slurry and residue separation device and the power unit to the hollow shaft 11 and the screen shaft 4 .

The biogas slurry to be separated flows from the shaft end of the hollow shaft 11 into the axial hole of the hollow shaft 11 during operation. Through the first gap 25 formed between the end face of the hollow shaft head 24 and the filter screen shaft plate 6, it flows into the second gap 26 formed between the spiral blade 7 and the filter screen 17, and the biogas slurry and the biogas residue smaller than the filter screen holes are Throw out the filter screen 17 to reach the inside of the casing 21, enter the biogas slurry pipeline through the discharge channel 22 provided on the casing 21, and the biogas residue is driven by the screw blade 7 to form the biogas residue formed from the opening end of the filter screen 17 and the hollow shaft head 24 The discharge port 8 discharges out of the strainer 17 .

Claims (10)

1. A biogas slurry and residue separator, comprising a casing (21) with a discharge channel (22), a biogas slurry and residue separation device, characterized in that, the biogas slurry and residue separation device is filtered by the biogas slurry device and biogas residue extruding device, and the biogas slurry filtering device is composed of a filter shaft (4) and a filter screen (17), one end of the filter shaft (4) is connected with the power device, and the other end is passed through its The screen shaft plate (6) provided at the shaft end is fixedly connected with the screen (17), and the biogas residue extruding device is composed of a hollow shaft (11) and a hollow shaft head (24), one end of the hollow shaft is connected to the The power unit is connected, and the other end is fixedly connected with one end of the hollow shaft shaft head (24). The side surface of the hollow shaft shaft head (24) is fixedly provided with segmented spiral blades (7), and the hollow shaft (11 ) is set coaxially with the filter screen shaft (4), the hollow shaft head extends into the filter screen (17) to match the filter screen, and the end face of the hollow shaft head (24) is in contact with the filter screen shaft disc ( 6) There is a first gap (25) between them, and a second gap (26) is between the spiral blade and the filter screen. 2. The biogas slurry and biogas slag separator as claimed in claim 1, characterized in that: one end of the hollow shaft head (24) facing the screen shaft disk (6) is provided with a bell-shaped inner concave hole ( 23) communicate with the axis hole of hollow shaft (11). 3. The biogas slurry and biogas slag separator according to claim 1 or 2, characterized in that: the hollow shaft head (24) is in the shape of a truncated cone, and its small-diameter end faces the screen shaft disc (6), and Matched, the filter screen (17) is a truncated cone shape. 4. The biogas slurry and biogas slag separator according to claim 1 or 2, characterized in that: the rotation direction of the filter screen shaft (4) and the hollow shaft (11) is opposite. 5. The biogas slurry and residue separator according to claim 2, characterized in that: the end face of the filter screen shaft disc (6) facing the hollow shaft shaft head (24) is provided with a coaxial Conical apex (16), the apex angle β of the apex (16) is equal to the apex angle b of the concave hole (23). 6. The biogas slurry and biogas residue separator according to claim 2 or 5, characterized in that: the apex angle b of the cone of the concave hole (23) is 100-120°. 7. The biogas slurry and residue separator according to claim 1, characterized in that: the helical blade (7) is inclined to the feeding end of the hollow shaft (11), and it is aligned with the shaft head of the hollow shaft ( 24) The inclination angle c between the end faces is 15°-25°. 8. The biogas slurry and biogas slag separator as claimed in claim 3, characterized in that: the included angle d between the generatrix of the hollow shaft head (24) and its axis is 0-10°, matching it, filtering The generatrix of the mesh 17 is inclined at an angle α of 0-10° with respect to its axis. 9. The biogas slurry and biogas slag separator as claimed in claim 1, characterized in that: the filter screen (17) is a strip net made of filter strips (28), and on the outer surface of the strip net A filter screen reinforcement ring (18) is provided, and the inner circumferential surface of the filter screen reinforcement ring (18) is provided with teeth (27) matched with the filter screen bar (28), and the teeth extend into the filter screen (17) , the filter screen (17) is fixedly connected by the filter screen bar (28) provided on it and the teeth (27) provided on the inner surface of the filter screen reinforcement ring (18). 10. The biogas slurry and biogas slag separator according to claim 1, characterized in that: the hollow shaft and the screen shaft are supported by bearings, and the hollow shaft bearing housing (10) supporting the hollow shaft (11) And the filter screen shaft bearing seat (3) of supporting screen screen shaft (4) is all cylindrical, and hollow shaft and filter screen shaft pass through hollow shaft bearing seat and filter screen shaft bearing seat respectively.

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