Efficient solid-liquid separator

Abstract

The utility model discloses an efficient solid-liquid separator which comprises a spiral conveying structure, the spiral conveying structure comprises an outer shell, a driving motor is arranged on one side of the outer shell, a spiral conveying shaft is arranged in the outer shell, a feeding port is formed in the side, away from the driving motor, of the upper portion of the outer shell, and a discharging port is formed in the side, close to the driving motor, of the lower portion of the outer shell. A fixed notch is further formed in the lower portion of the outer shell and located in the side, away from the driving motor, of the discharging port, a filter screen is arranged at the fixed notch, the discharging port is connected with a discharging pipe, a secondary filtering structure is arranged at the discharging pipe, the secondary filtering structure comprises two sets of oppositely-arranged positioning pipes, and pressing plates are slidably connected into the positioning pipes; a second filter screen is arranged in the discharging pipe, and a second discharging opening is formed in the positioning pipe. Main solid-liquid separation is achieved through the spiral conveying structure, the filter screen and the water outlet holes, materials are extruded through the sliding pressing plate structure, secondary filtering is carried out, and the solid-liquid separation effect and efficiency are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a high-efficiency solid-liquid separator. Background Art

[0002] Domestic sewage contains impurities such as garbage. In the process of domestic sewage treatment, solid-liquid separation is one of the important steps. The existing solid-liquid separation structure is generally only achieved through a mesh, and achieving solid-liquid separation only through a filter mesh has the problem of inconvenience in the transportation of wastewater and waste. The existing Chinese utility model patent with application number 201620229734.1 discloses a high-efficiency garbage solid-liquid separator, which can be used for the first process of sewage treatment in a sewage treatment plant. It compresses the garbage by arranging a variable pitch spiral shaft in the garbage collection barrel, and cooperates with the water outlet at the upper end of the garbage collection barrel to achieve solid-liquid separation. However, the above structure has the problem of low efficiency in achieving solid waste compression and transfer through the variable pitch spiral shaft structure. Utility Model Content

[0003] The purpose of the utility model is to provide a solid-liquid separator with good separation effect and high efficiency in view of the shortcomings of the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model is a high-efficiency solid-liquid separator, which adopts the following technical solutions:

[0005] A high-efficiency solid-liquid separator comprises a spiral conveying structure, which comprises an outer shell, a driving motor is provided on one side of the outer shell, a spiral conveying shaft is provided in the outer shell, one end of the spiral conveying shaft is connected to the driving motor, a feed port is provided on the upper side of the outer shell away from the driving motor, a discharge port is provided on the lower side of the outer shell close to the driving motor, a fixed notch is also provided at the lower part of the outer shell, the fixed notch is located on the side of the discharge port away from the driving motor, a filter screen is provided at the fixed notch, a liquid outlet pipe is also connected at the fixed notch, the discharge port is connected to the discharge pipe, a secondary filtering structure is provided at the discharge pipe, the secondary filtering structure comprises two groups of relatively arranged positioning tubes, a pressure plate is slidably connected in the positioning tube, a second filter screen is provided in the discharge pipe, the lower end of the pressure plate is flush with the second filter screen, and a second discharge port is provided on the positioning tube.

[0006] A further improvement of the high-efficiency solid-liquid separator of the utility model is that a water outlet hole is provided on one end surface of the outer shell away from the driving motor, and a hole is also provided on the spiral blade on the spiral conveying shaft.

[0007] A further improvement of the high-efficiency solid-liquid separator of the utility model is that the outer shell is composed of six side walls which are detachably connected.

[0008] A further improvement of the high-efficiency solid-liquid separator of the utility model is that the spiral conveying structure is arranged obliquely, the discharge pipe is arranged vertically, and a connecting pipe is provided between the discharge pipes.

[0009] A further improvement of the high-efficiency solid-liquid separator of the utility model is that the lower end of the discharge pipe is connected to a four-way pipe, and the secondary filtering structure is arranged in the four-way pipe.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model utilizes a spiral conveying structure, a filter screen and a water outlet hole to realize the main solid-liquid separation, and then uses a sliding pressure plate structure to squeeze the material and perform secondary filtration, thereby ensuring the effect and efficiency of solid-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] In the figure: 1 outer shell, 2 spiral conveying shaft, 3 driving motor, 4 feed pipe, 5 discharge pipe, 6 liquid discharge pipe, 7 positioning pipe, 8 pressing plate, 9 second filter screen, 10 second discharge pipe. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, a high-efficiency solid-liquid separator includes a spiral conveying structure. The spiral conveying structure includes an outer shell 1, a drive motor 3 is provided on one side of the outer shell, a spiral conveying shaft 2 is provided within the outer shell, one end of the spiral conveying shaft is connected to the drive motor, a feed port is provided on the upper side of the outer shell away from the drive motor, a feed pipe 3 is provided at the feed port, a discharge port is provided on the lower side of the outer shell near the drive motor, a fixed notch is provided at the lower part of the outer shell, the fixed notch is located on the side of the discharge port away from the drive motor, a filter is provided at the fixed notch, a liquid discharge pipe 6 is connected to the fixed notch, a discharge port is connected to the discharge pipe 5, and a secondary filtration structure is provided at the discharge pipe. The secondary filtration structure includes two sets of relatively arranged positioning tubes 7, which are connected to the discharge pipe. A pressure plate 8 is slidably connected within the positioning tubes. The sliding connection can be achieved by controlling an externally positioned telescopic cylinder. A second filter 9 is provided within the discharge pipe, and the discharge pipe below the second filter is connected to a second liquid discharge pipe 10. The lower end of the pressure plate is flush with the second filter, and the positioning tube is provided with a second discharge port.

[0016] Furthermore, a water outlet is provided on one end of the outer shell away from the drive motor, and holes are also provided on the spiral blades of the spiral conveyor shaft. The outer shell is composed of six detachably connected sidewalls. Preferably, the spiral conveyor structure is arranged at an angle, while the discharge pipe remains vertically arranged, and a connecting pipe is added between the discharge pipes.

[0017] Furthermore, the lower end of the discharge pipe is connected to a cross-shaped pipe, and the secondary filtration structure is housed within the cross-shaped pipe. This replaces the positioning pipe and the lower structure of the discharge pipe with the cross-shaped pipe, improving the convenience of the structural design. Furthermore, the second filter is placed within the downward-facing cross-shaped pipe, with pressure plates slidingly connected to the two side pipes. Secondary discharge ports are also provided on the two side pipes and connected to the second discharge ports.

[0018] The working principle of the utility model is as follows: the solid-liquid mixture enters the outer shell from the feed inlet, the solid moves upward under the action of the spiral conveying blades, and the liquid flows down from the holes of the blades and the water outlet holes of the outer shell. During the upward movement of the solid, it passes through the filter screen, and part of the liquid will pass through the filter screen in the liquid outlet pipe. At this time, the efficiency of solid-liquid separation is improved; then the solid material enters the discharge pipe, and as for the second filter screen, one of the pressure plates squeezes the material and further squeezes out the water to achieve solid-liquid separation and filtration. Afterwards, the two pressure plates move synchronously to push the material to the second discharge port, and one pressure plate is reset, and the solid material is discharged into the second discharge pipe by its own weight. Afterwards, the other pressure plate is reset again and the action is repeated. When the pressure plate is working, a baffle plate can be set on the discharge pipe to block the material at the discharge port to ensure the effect of solid-liquid separation.

[0019] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high-efficiency solid-liquid separator, characterized by: It includes a spiral conveying structure, which includes an outer shell, a driving motor is provided on one side of the outer shell, a spiral conveying shaft is provided in the outer shell, one end of the spiral conveying shaft is connected to the driving motor, a feed port is provided on the upper side of the outer shell away from the driving motor, a discharge port is provided on the lower side of the outer shell close to the driving motor, a fixed notch is also provided at the lower part of the outer shell, the fixed notch is located on the side of the discharge port away from the driving motor, a filter screen is provided at the fixed notch, a liquid outlet pipe is also connected to the fixed notch, the discharge port is connected to the discharge pipe, a secondary filtering structure is provided at the discharge pipe, the secondary filtering structure includes two groups of relatively arranged positioning tubes, a pressure plate is slidably connected in the positioning tube, a second filter screen is provided in the discharge pipe, the lower end of the pressure plate is flush with the second filter screen, and a second discharge port is provided on the positioning tube.

2. A high-efficiency solid-liquid separator according to claim 1, characterized in that: A water outlet hole is provided on one end surface of the outer shell away from the driving motor, and a hole is also provided on the spiral blade on the spiral conveying shaft.

3. A high-efficiency solid-liquid separator according to claim 2, characterized in that: The outer shell is composed of six side walls that are detachably connected.

4. A high-efficiency solid-liquid separator according to claim 3, characterized in that: The spiral conveying structure is arranged obliquely, the discharge pipe is arranged vertically, and a connecting pipe is provided between the discharge pipes.

5. The high-efficiency solid-liquid separator according to claim 4, characterized in that: The lower end of the discharge pipe is connected to a four-way pipe, and the secondary filtering structure is arranged in the four-way pipe.

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