Dry sludge negative pressure transfer and storage device

Abstract

The utility model provides a dry sludge negative pressure transfer and storage device which is characterized by comprising a bin body and a negative pressure device arranged at the top of the bin body, and a dust collection bag assembly is arranged in the middle of the bin body; a double-turning-plate air lock is arranged at the bottom of the bin body, the dust removal cloth bag assembly comprises a dust removal cloth bag arranged in the bin body and an electromagnetic pulse valve arranged outside the bin body, and the electromagnetic pulse valve is electrically connected with a pressure sensor in the bin body. The dry sludge or incineration ash conveying device has the advantages that investment cost and operation and maintenance cost of the dry sludge or incineration ash conveying device are reduced, labor investment is reduced, the whole system is in negative pressure operation, waste gas is not prone to leakage, environmental protection is facilitated, and environmental pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sludge treatment technical field, concretely relates to a dry sludge negative pressure transfer storage device. BACKGROUND

[0002] The sludge discharged by the urban sewage treatment plant contains about 80% water after gravity concentration and mechanical dewatering, has a large volume and low calorific value, and is not suitable for aerobic composting, incineration, building material utilization, or even landfilling, and must be further dewatered and dried. The management of urban sludge is a worldwide social and environmental problem. At present, the commonly used sludge drying equipment is a single-channel rotary dryer, which is suitable for drying urban sludge or incinerating sludge by incineration. Incineration is a fast and effective treatment method. Through high-temperature incineration, harmful substances in the sludge can be completely decomposed, and environmental pollution can be reduced. At the same time, the heat generated during the incineration process can also be recycled and utilized, improving energy utilization efficiency. Dry sludge and incineration ash after drying usually include the following two transportation and treatment methods: one is to use a scraper, a screw, a belt conveyor, and a scraper, a bucket elevator to lift the dry sludge to the inlet end of the storage bin and store it in the dry sludge storage bin, and then discharge it to a transfer vehicle when a certain amount is stored. Or use compressed air to transport it to the dry sludge storage bin by pneumatic conveying, and then discharge it to a transfer vehicle when a certain amount is stored. The investment cost of the conveying equipment in the conveying process of these two methods is relatively high, and the replacement of the wearing parts is relatively cumbersome, resulting in high overall cost. In addition, the conveying machine generally conveys under normal pressure or positive pressure, which is easy to cause odor leakage and environmental pollution. CONTENT

[0003] In order to solve the problems in the prior art, the utility model provides a dry sludge negative pressure transfer storage device, which can reduce operating costs and is more environmentally friendly.

[0004] The utility model discloses a dry sludge negative pressure transfer storage device, which can realize the following technical schemes:

[0005] The dry sludge negative pressure transfer storage device comprises a bin body, a negative pressure device arranged on the top of the bin body, and a dust removal bag assembly arranged in the middle of the bin body.

[0006] Preferably, the negative pressure device is a vacuum pump connected to the top end of the bin body through a flexible pipe.

[0007] Preferably, one side of the bin body is provided with an inlet end, the inlet end is provided with a flexible pipe for sucking dry sludge, and the height of the inlet end is lower than the height of the bottom of the dust removal bag.

[0008] Preferably, a level gauge is arranged below the bin body and electrically connected with the alarm component outside the bin body.

[0009] Preferably, the pressure sensor is a differential pressure sensor, two detection ends of the differential pressure sensor are arranged on the upper and lower sides of the dust cloth bag assembly respectively, and the differential pressure sensor detects the pressure difference between the upper and lower sides of the dust cloth bag assembly.

[0010] The device reduces investment cost and operation and maintenance cost in the dry sludge or incineration ash conveying stage, reduces manual input, and the whole device is operated under negative pressure, so that waste gas is not easy to leak, environmental protection is facilitated, and environmental pollution is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0012] Figure 1 The utility model discloses a structural schematic diagram. DETAILED DESCRIPTION

[0013] The utility model discloses a dry sludge negative pressure transfer storage device, combines Figure 1 As shown in the figure, the dry sludge negative pressure transfer storage device comprises a bin body 1 and a negative pressure device 2 arranged on the top of the bin body 1, wherein the negative pressure device 2 is a vacuum pump connected with the top of the bin body through a flexible hose.

[0014] The bin body 1 is provided with a dust cloth bag assembly in the middle; the dust cloth bag assembly comprises a dust cloth bag 12 arranged in the bin body and an electromagnetic pulse valve 13 arranged outside the bin body, the electromagnetic pulse valve 13 is electrically connected with a pressure sensor in the bin body, the bottom of the bin body 1 is provided with a discharge end, the discharge end is provided with a double-turning-plate air lock 11 for maintaining the vacuum degree in the bin body, one side of the bin body 1 is provided with a feeding end, the feeding end is provided with a flexible pipe for sucking dry sludge, and the height of the feeding end is lower than the height of the bottom of the dust cloth bag.

[0015] In the embodiment, the dust cloth bag assembly is arranged in the upper middle layer of the bin body, the pressure sensor is a differential pressure sensor, two detection ends of the differential pressure sensor are arranged on the upper and lower sides of the dust cloth bag assembly respectively, and the differential pressure sensor detects the pressure difference between the upper and lower sides of the dust cloth bag assembly.

[0016] The bin body is provided with a material level meter below the bin body, and the material level meter is electrically connected with an alarm assembly outside the bin body. The inside of the bin body is a negative pressure environment, and the dry sludge or incineration ash is sucked into the bin body 1 through the flexible pipe of the feeding end, and since the vacuum pump is located at the top end of the bin body 1, the sucked material will be adhered to the surface layer of the dust removal bag 12 through the dust removal bag assembly, and as the material increases, the pressure difference between the upper and lower bag layers in the bin body will increase, when the pressure difference sensor detects that the pressure difference increases to a limited value, the signal is fed back to the control system, and the control system sends a signal to the electromagnetic pulse valve, and the electromagnetic pulse valve 13 is opened, and the material on the dust removal bag 12 will fall to the bottom of the bin body, and when the material level meter in the bin body 1 detects that the material at the bottom of the bin body increases to a certain height, a signal will be sent to the alarm assembly for alarm, at this time, the vehicle can be operated to the bottom of the bin body to pull away the material.

[0017] The device can not only be applied to the storage of dry sludge, but also can be applied to the transfer and storage of incineration ash or other dust, and has strong practicability.

[0018] Finally, it should be noted that: the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0019] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. Dry sludge negative pressure transfer and storage apparatus, characterized by: The utility model relates to a dry sludge drying device, including warehouse body, negative pressure device is placed in the top of warehouse body, the middle part of warehouse body is provided with dust removal cloth bag subassembly, the bottom of warehouse body is provided with discharge end, is provided with double turning edition air lock on the discharge end, dust removal cloth bag subassembly includes dust removal cloth bag in the warehouse body and sets up in the electromagnetic pulse valve of dust removal cloth bag outside warehouse body, and the electromagnetic pulse valve is electrically connected with pressure sensor in the warehouse body.

2. The dry sludge negative pressure transfer and storage apparatus as claimed in claim 1, wherein: The negative pressure device is a vacuum pump connected with the top end of the warehouse body through a flexible pipe.

3. The dry sludge negative pressure transfer and storage apparatus as claimed in claim 2, characterized in that: One side of the warehouse body is provided with an inlet end, the inlet end is provided with a flexible pipe for sucking dry sludge, and the height of the inlet end is lower than the height of the bottom of the dust removal cloth bag.

4. The dry sludge negative pressure transfer and storage apparatus as claimed in claim 3, characterized in that: A material level meter is arranged below the warehouse body, and the material level meter is electrically connected with an alarm component outside the warehouse body.

5. The dry sludge negative pressure transfer and storage apparatus as claimed in claim 4, wherein: The pressure sensor is a differential pressure sensor, and the two detection ends of the differential pressure sensor are arranged on the upper side and the lower side of the dust removal cloth bag subassembly, respectively. The differential pressure sensor detects the pressure difference between the upper side and the lower side of the dust removal cloth bag subassembly.

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