CN202717682U - Solar sludge drying system - Google Patents

Abstract

The utility model provides a solar sludge drying system, which is composed of an outdoor device and a drying chamber, wherein the outdoor part includes an air purifier, a solar heat collector and a first blower; the air purifier is connected to the The inlet of the solar heat collector, the outlet of the solar heat collector is connected to the first blower; the drying chamber includes a wall, an air outlet, a hot gas pipe and a drying field; the top of the wall is a herringbone structure, An air outlet is provided at the top center of the wall; the hot air pipe is located at the bottom of the drying chamber, and a plurality of hot air nozzles are arranged on the hot air pipe; the drying field is a layer of stainless steel The mesh plate is located above the hot air pipe; one end of the hot air pipe is connected to the first blower. The utility model integrates the advantages of an absorption dryer and a convection dryer, is clean and environmentally friendly, and is simple and efficient.

Description

A solar sludge drying system

technical field

The utility model relates to the technical field of solar drying of sewage, in particular to a solar drying system for drying sludge.

Background technique

With the continuous progress of human society, by the end of the last century, human beings are facing two major obstacles to sustainable development: environmental pollution and resource shortage. According to incomplete statistics, my country's daily sewage discharge has reached 13.37 billion tons, and 0.5%-10% of its volume will be converted into sludge after treatment. Generally speaking, the main treatment method of sludge is landfill, and before landfill, the sludge needs to be dried first to remove the water and reduce the weight of the sludge.

At present, the most commonly used sludge drying equipment on the market is the dryer, and the dryer uses the hot air generated by the coal-fired hot air stove as the drying heat source, the drying efficiency is low, and the cost is relatively high. The water vapor content is very large, and there are problems that the sludge particles cannot be separated well, resulting in high total dust content and high odor concentration.

Contents of the invention

The purpose of the utility model is to solve the problems of low sludge drying efficiency and environmental pollution in the prior art, and provide a clean and environmentally friendly sludge drying system that can dry sludge efficiently and easily.

In order to achieve the above purpose, the utility model provides a solar sludge drying system, which is composed of an outdoor device and a drying chamber, wherein the outdoor part includes an air purifier, a solar heat collector and a first blower; the air The purifier is connected to the inlet of the solar heat collector, and the outlet of the solar heat collector is connected to the first air blower; the drying chamber includes a wall, an air outlet, a hot gas pipe and a drying field; The top is a herringbone structure, and an air outlet is provided at the top center of the wall; the hot air pipe is located at the bottom of the drying chamber, and a plurality of hot air nozzles are arranged on the hot air pipe; the drying The field is a layer of stainless steel mesh plate, located above the hot air pipe; one end of the hot air pipe is connected to the first blower.

The utility model proposes a solar sludge drying system, wherein the outdoor part further includes a second air blower located at the front end of the air purifier.

The utility model proposes a solar sludge drying system, wherein an air inlet is provided around the top of the wall of the drying chamber.

The utility model proposes a solar sludge drying system, wherein, the surrounding of the wall of the drying chamber is made of glass, and the top of the wall is made of glass or plastic plate.

The utility model proposes a solar sludge drying system, wherein the hot gas pipe includes a plurality of staggered hot gas branch pipes.

The utility model proposes a solar sludge drying system, wherein the hot gas branch pipe is S-shaped.

A solar sludge drying system proposed by the utility model, wherein, the drying chamber further includes a temperature sensor, a humidity sensor and a controller, the temperature sensor and the humidity sensor are connected to the controller, and the control The device connects the first blower and the second blower.

Compared with the prior art, the solar sludge drying system proposed by the utility model can not only receive the heating of solar radiation directly, but also rely on the heating from the air collector, and the collection and absorption dryer and the convection dryer are both The advantages of the former in one, higher efficiency. In addition, a solar sludge drying system proposed by the utility model has a high degree of transparency and good environmental coordination; the system has a high degree of automation, stable and safe operation, low temperature, and small dust output; it can simultaneously solve the needs of sludge storage; After that, the volume of sludge can be reduced by 50% to 90%, achieving stabilization and still retaining its original agricultural reuse value (low temperature drying). The sludge drying system can not only produce significant social and environmental benefits, but also obtain obvious economic benefits.

Description of drawings

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

Reference signs: 1-solar heat collector; 2-first blower; 3-hot air pipe; 4-drying field; 5-sludge layer; 6-top of drying chamber wall; 7-air inlet; 8 -pocket-shaped air outlet; 9-second blower; 10-air purifier; 11-wall of drying chamber; 12-hot air branch pipe.

Detailed ways

The above-mentioned and other technical features and advantages of the present utility model will be further described below in conjunction with the accompanying drawings.

Please refer to Fig. 1, which is a structural schematic diagram of the present utility model. As shown in FIG. 1 , the outdoor part of the present invention includes a second air blower 9 , an air cleaner 10 and a solar heat collector 1 . The second blower 9 sends air into the air cleaner 10 for purification and removal of impurities. The purified air enters the solar heat collector 1 through the inlet to be heated, and then flows out from the solar heat collector through the outlet. The outlet of the solar heat collector 1 is provided with a first air blower for sending hot air into the hot gas pipe 3 . The hot gas pipe 3 in the figure is divided into a plurality of hot gas branch pipes 12 in the drying chamber. Preferably, these hot gas branch pipes are S-shaped and can be staggered in various ways to increase the contact area between the hot air and the sludge and increase the Utilization of hot air. A plurality of hot air nozzles are also arranged on the hot air branch pipe 12 to spray hot air upward into the sludge layer.

The top of the hot gas branch pipe 12 is the drying field 4, which is a layer of stainless steel mesh plate on which the wet sludge to be dried is laid. The drying field 4 is equipped with sludge spreading, dumping, recycling transfer and conveying devices, so that the sludge is frequently turned and mixed uniformly, so as to continuously renovate the evaporation area, and also play the role of oxygen supply to avoid sludge Partial anaerobic gas will be released inside the pile.

The surrounding walls 11 of the drying chamber are made of toughened glass, the top 6 of the drying chamber wall is a herringbone structure, and a pocket-shaped air outlet 8 is arranged at the center of the wall top 6, and the humid air in the drying chamber is conveniently It is discharged outdoors through the pocket type air outlet 8 . Air inlets 7 are also provided around the top of the wall of the drying chamber, which can enhance air circulation and meet the needs of large-area greenhouses for sludge treatment.

In addition, the inside of the drying chamber may also include a temperature sensor, a humidity sensor and a controller (not shown in the figure), the temperature sensor and the humidity sensor are connected to the controller, and the controller is connected to the first blower 2 and the second blower 9 at the same time. By monitoring the indoor temperature and humidity, the first blower and the second blower are turned on and off according to different needs, so as to realize the automatic control of the sludge drying process.

The above embodiments are only used to illustrate the utility model and are not intended to limit the technical solutions described in the utility model; It should be understood that many modifications, changes, or equivalent replacements can still be made to the present utility model; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the following appended claims will fall under the protection of the present utility model within range.

Claims (7)

1. A solar sludge drying system, consisting of an outdoor device and a drying chamber, is characterized in that: The outdoor part includes an air cleaner, a solar heat collector and a first blower; the air cleaner is connected to the inlet of the solar heat collector, and the outlet of the solar heat collector is connected to the first blower; The drying chamber includes a wall, an air outlet, a hot air pipe and a drying field; the top of the wall is a herringbone structure, and an air outlet is arranged at the center of the top of the wall; the hot air pipe is located at The bottom of the drying chamber, and the hot gas pipe is provided with a plurality of hot gas nozzles; the drying field is a layer of stainless steel mesh plate, located above the hot gas pipe; one end of the hot gas pipe is connected to the Describe the first blower. 2. A solar sludge drying system according to claim 1, characterized in that, the outdoor part further comprises a second air blower located at the front end of the air cleaner. 3. A solar sludge drying system according to claim 1, characterized in that air inlets are provided around the top of the wall of the drying chamber. 4. A solar sludge drying system according to claim 1, characterized in that, the walls of the drying chamber are made of glass around the wall, and the top of the wall is made of glass or plastic plates . 5. The solar sludge drying system according to claim 1, wherein the hot gas pipe comprises a plurality of staggered hot gas branch pipes. 6. A solar sludge drying system according to claim 5, characterized in that, the hot gas branch pipe is S-shaped. 7. A kind of solar sludge drying system according to claim 1, characterized in that, the drying chamber also includes a temperature sensor, a humidity sensor and a controller, and the temperature sensor and the humidity sensor are connected to the A controller, the controller is connected to the first blower and the second blower.

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