Liquid level control device of stacked spiral sludge dewatering machine

Abstract

The utility model discloses a liquid level control device of a stacked spiral sludge dewatering machine, the liquid level control device comprises a low-level electrode, a high-level electrode and an electrode bar, the free ends of the low-level electrode, the high-level electrode and the electrode bar extend towards the direction of an inner cavity of a dewatering machine body, the low-level electrode is arranged between the high-level electrode and the electrode bar, and the high-level electrode is arranged between the high-level electrode and the electrode bar. The electrode bar comprises an electrode bar core body and a copper wire arranged on the outer side of the electrode bar core body, and the two ends of the copper wire are connected with the electrode bar through connecting pieces. After the technical scheme is adopted, the liquid level control device of the stacked spiral sludge dewatering machine, provided by the utility model, adopts the electrode bar formed by combining the electrode bar core body and the copper wire, so that the volume of the electrode bar is reduced, the surface smoothness of the electrode bar is increased, the self-aggregation of sludge is avoided, and the service life of the electrode bar is prolonged under the condition of meeting electric conduction. Therefore, the failure rate of the stacked screw type sludge dewatering machine is reduced, manual treatment is reduced, and the operation stability of the stacked screw type sludge dewatering machine is ensured.

Description

Technical Field

[0001] The utility model relates to a liquid level control device for a screw stack type sludge dewatering machine. Background Art

[0002] Sludge is an inevitable product of sewage treatment plants and sewage stations. If the sludge is not properly treated and disposed of, it will directly cause secondary pollution to the water and the atmosphere, and will also pose a serious threat to the ecological environment and human activities. Therefore, sludge treatment is very cautious. After the sewage is treated by sedimentation, a large amount of sludge will be produced. Even after concentration and digestion, the water content is still as high as 96%. The volume is large and difficult to dispose of. It must be dehydrated to increase the solid content of the mud cake to reduce the area occupied by the sludge stack.

[0003] The existing screw stack sludge dewatering machine automatically stops feeding sludge through sensing electrodes during operation. The electrodes are divided into three levels (high-level electrodes, low-level electrodes and electrode rods). When the sludge level is lower than the low-level electrode, the sludge automatically feeds water. When the sludge level reaches the high-level electrode, the sludge feeding stops, thereby achieving automatic operation. However, during this process, the electrode rods are prone to sludge accumulation due to their large size. The gradually increasing sludge will wrap all three electrodes, creating an illusion of high position, which will cause the screw stack sludge dewatering machine to be unable to automatically feed sludge, affecting the operation of the sewage system. Utility Model Content

[0004] In view of the above problems, the utility model provides a liquid level control device for a screw stack type sludge dewatering machine.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a liquid level control device for a screw stack sludge dewatering machine, the liquid level control device is located in the body of the screw stack sludge dewatering machine, the liquid level control device includes a low-level electrode, a high-level electrode and an electrode rod fixedly connected to the top plate of the dewatering machine body, the free ends of the low-level electrode, the high-level electrode and the electrode rod extend toward the inner cavity of the dewatering machine body, the low-level electrode is arranged between the high-level electrode and the electrode rod, the electrode rod includes an electrode rod core, a copper wire arranged on the outside of the electrode rod core, and the two ends of the copper wire are connected to the electrode rod through a connecting piece.

[0006] Preferably, the lengths of the high-position electrode, the low-position electrode and the electrode rod gradually increase in sequence.

[0007] Preferably, the high-position electrode, the low-position electrode and the electrode rod are arranged side by side.

[0008] Preferably, the connecting piece is an electrical tape.

[0009] Preferably, the copper wire is arranged on the outer side of the electrode rod core in a spirally wound manner.

[0010] Preferably, the electrode rod core is one of a copper rod, an aluminum rod, an iron rod or a stainless steel rod.

[0011] Preferably, the length of the copper wire is 30 cm and the cross-sectional area of ​​the copper wire is 6 mm. 2 From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0012] The utility model provides a liquid level control device for a screw stack type sludge dewatering machine. By adopting an electrode rod composed of an electrode rod core and a copper wire, the volume of the electrode rod is reduced and the surface smoothness of the electrode rod is increased under the condition of electrical conductivity, thereby avoiding sludge self-aggregation, thereby reducing the failure rate of the screw stack type sludge dewatering machine, reducing manual processing, and ensuring the stability of the operation of the screw stack type sludge dewatering machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a schematic diagram of a liquid level control device of a screw stack type sludge dewatering machine of the utility model;

[0015] Figure 2 This is a schematic diagram of the copper wire of a liquid level control device of a spiral stacked sludge dewatering machine of the utility model being connected to the outside of an electrode rod core;

[0016] Figure 3 It is a schematic diagram showing that the copper wire of a liquid level control device of a spiral stacked sludge dewatering machine of the utility model is connected to the outside of an electrode rod core in a spirally wound manner. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] Example

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a liquid level control device of a spiral stack sludge dewatering machine is located in a main body 1 of the spiral stack sludge dewatering machine. The liquid level control device includes a low-position electrode 21, a high-position electrode 22 and an electrode rod 23 fixedly connected to a top plate 11 of the dewatering machine main body 1. The low-position electrode 21, the high-position electrode 22 and the electrode rod 23 are electrically connected to a liquid level controller 4 respectively. The free ends of the low-position electrode 21, the high-position electrode 22 and the electrode rod 23 extend toward the inner cavity of the dewatering machine main body 1. The low-position electrode 21 is arranged between the high-position electrode 22 and the electrode rod 23. The electrode rod 23 includes an electrode rod core 231 and a copper wire 232 arranged on the outside of the electrode rod core 231. Both ends of the copper wire 232 are connected to the electrode rod 23 through a connector 3. The length of the copper wire 232 is 30 cm, and the cross-sectional area of ​​the copper wire 232 is 6 mm. 2The structure adopts an electrode rod composed of an electrode rod core and a copper wire, and while satisfying the conductive condition, the volume of the electrode rod is reduced, the surface smoothness of the electrode rod is increased, and the sludge self-aggregation is avoided, thereby reducing the failure rate of the screw stack sludge dewatering machine, reducing manual processing, and ensuring the stability of the operation of the screw stack sludge dewatering machine.

[0023] like Figure 1 As shown, the lengths of the high-position electrode 22, the low-position electrode 21 and the electrode rod 23 gradually increase in sequence; the high-position electrode 22, the low-position electrode 21 and the electrode rod 23 are arranged side by side.

[0024] like Figure 2 , Figure 3 As shown, the connecting member 3 is an electrical tape; the copper wire 232 is arranged on the outer side of the electrode rod core 231 in a spirally wound manner; the electrode rod core 231 is one of a copper rod, an aluminum rod, an iron rod or a stainless steel rod. With this structure, the arrangement of the electrical tape allows the copper wire to be firmly connected to the electrode rod core.

[0025] During specific use, the outer sheath on the outside of the existing electrode rod is removed and replaced with a copper wire 232 with a length of 30CM and a cross-sectional area of ​​6 square millimeters. Under the condition of meeting the conductivity, the volume of the electrode rod 23 is reduced, and the surface smoothness of the electrode rod 23 is increased, thereby avoiding sludge self-aggregation, thereby reducing the failure rate of the screw stack sludge dewatering machine, reducing manual processing, and ensuring the stability of the operation of the screw stack sludge dewatering machine.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid level control device for a screw stack sludge dewatering machine, the liquid level control device is located in the body of the screw stack sludge dewatering machine, and is characterized by: The liquid level control device includes a low-position electrode, a high-position electrode and an electrode rod fixedly connected to the top plate of the dehydrator body, the free ends of the low-position electrode, the high-position electrode and the electrode rod extend toward the inner cavity of the dehydrator body, the low-position electrode is arranged between the high-position electrode and the electrode rod, the electrode rod includes an electrode rod core and a copper wire arranged on the outside of the electrode rod core, and the two ends of the copper wire are connected to the electrode rod through a connecting piece.

2. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The lengths of the high-position electrode, the low-position electrode and the electrode rod gradually increase in sequence.

3. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The high-position electrode, the low-position electrode and the electrode rod are arranged side by side.

4. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The connecting piece is an electrical tape.

5. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The copper wire is arranged on the outer side of the electrode rod core in a spirally wound manner.

6. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The electrode rod core is one of a copper rod, an aluminum rod, an iron rod or a stainless steel rod.

7. The liquid level control device of a screw stack sludge dewatering machine according to claim 1, characterized in that: The length of the copper wire is 30 cm, and the cross-sectional area of ​​the copper wire is 6 mm. 2 .

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