CN212174781U

CN212174781U - Sludge drier

Info

Publication number: CN212174781U
Application number: CN202020680726.5U
Authority: CN
Inventors: 钱俊宇; 杜佳健
Original assignee: Suzhou Purui Environment Technology Co ltd
Current assignee: Suzhou Purui Environment Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-18
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a sludge drying machine, which comprises a drying chamber and a heat exchange chamber, wherein the top wall of the drying chamber is provided with an air outlet, the top wall of the heat exchange chamber is provided with an air inlet, and a circulating fan positioned outside the drying chamber and the heat exchange chamber communicates the drying chamber and the heat exchange chamber through the air outlet and the air inlet; the drying chamber comprises a belt dryer arranged at the upper part and a hot air blower arranged at the lower part, the heat exchange chamber comprises a cloth bag filter arranged at the upper part, a heat exchanger, a condenser and an evaporator arranged at the lower part, and the evaporator is connected with the hot air blower; and the top wall of the drying chamber is provided with an explosion venting port. The circulating fan is arranged externally, so that the circulating fan is safer and more reliable, and the risk of explosion is reduced; compact structure, each component cooperation is smooth, has realized the sludge drying function high-efficiently, is favorable to the purification of environment.

Description

Sludge drier

Technical Field

The utility model relates to a sewage treatment plant technical field, especially a sludge drying machine.

Background

After gravity concentration and mechanical dehydration, the sludge discharged from urban sewage treatment plants has the water content of about 80 percent, large volume and low heat value, is not suitable for aerobic composting, incineration, building material utilization and even landfill, and in order to avoid secondary pollution, the sludge needs to be further dehydrated and dried, and then is subjected to landfill solidification and other treatments. Therefore, people begin to seek a proper device for effectively treating the sludge, reducing the water content of the sludge, strengthening the environmental protection capability and improving the living environment.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists above-mentioned, the utility model aims at: provides a sludge drier.

In order to achieve the above object, the utility model provides a following technical scheme:

a sludge drier comprises a drying chamber and a heat exchange chamber, wherein the top wall of the drying chamber is provided with an air outlet, the top wall of the heat exchange chamber is provided with an air inlet, and a circulating fan positioned outside the drying chamber and the heat exchange chamber is used for communicating the drying chamber and the heat exchange chamber through the air outlet and the air inlet; the drying chamber comprises a belt dryer arranged at the upper part and a hot air blower arranged at the lower part, the heat exchange chamber comprises a cloth bag filter arranged at the upper part, a heat exchanger, a condenser and an evaporator arranged at the lower part, and the evaporator is connected with the hot air blower; and the top wall of the drying chamber is provided with an explosion venting port.

Preferably, a plurality of associated heat exchange chambers is included.

Preferably, a condensed water outlet communicated with the condenser is arranged on the side wall of the heat exchange chamber.

Preferably, a hot water inlet communicated with the evaporator is arranged on the side wall of the heat exchange chamber.

Preferably, the side wall of the drying chamber is provided with an openable window.

Preferably, the air heater is an explosion-proof fan.

Preferably, the conveyor belt of the belt dryer is a teflon mesh belt.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model discloses a sludge drying machine, including drying chamber and heat transfer chamber, the roof of drying chamber is provided with the air outlet, and the roof of heat transfer chamber is provided with the air intake, and a circulating fan that is located drying chamber and the outside of heat transfer chamber communicates drying chamber and heat transfer chamber through air outlet and air intake, and circulating fan is external, and is safer and more reliable, reduces the risk of explosion; the drying chamber is including setting up in the belt dryer on upper portion and setting up in the air heater of lower part, and the heat transfer room is including setting up in the sack filter on upper portion and setting up in heat exchanger, condenser and the evaporimeter of lower part, compact structure, and each part cooperation is smooth, has realized the sludge drying function high-efficiently, is favorable to the purification of environment.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1 is a front view of the sludge drying machine of the present invention;

FIG. 2 is a top view of the sludge drying machine of the present invention;

FIG. 3 is a left side view of the sludge drying machine of the present invention;

FIG. 4 is a perspective view of the sludge drying machine of the present invention with a part of the structure omitted;

FIG. 5 is a flow chart of the sludge drying machine of the present invention.

Wherein: 1. a drying chamber; 2. a heat exchange chamber; 3. an air outlet; 4. an air inlet; 5. a circulating fan; 6. a belt dryer; 7. a hot air blower; 8. a cloth bag filter; 9. a heat exchanger; 10. a condenser; 11. an evaporator; 12. an explosion venting port; 13. a condensed water outlet; 14. a hot water inlet; 15. and (4) a window.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, it should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting. The following describes the implementation of the present invention in detail with reference to specific embodiments.

As shown in attached drawings 1 and 4, the utility model relates to a sludge drying machine, including front and back adjacent drying chamber 1 and heat transfer chamber 2, drying chamber 1 is including installing in belt dryer 6 on upper portion and installing in air heater 7 of lower part, and belt dryer 6's conveyer belt is special fluorine dragon guipure, is difficult for adhesion mud, and stability is good, and the air permeability of carrying is high, has the characteristics that reduce heat source consumption, improve drying efficiency. The air heater 7 is an explosion-proof fan, and an explosion-proof motor is used, so that the safety of equipment and workers nearby a site is guaranteed. The top wall of the drying chamber 1 is provided with an explosion venting port 12 for discharging internal pressure, so that the explosion risk is further reduced, and the safety of the sludge drying machine is guaranteed.

The heat exchange chamber 2 comprises a cloth bag filter 8 arranged at the upper part, a heat exchanger 9 arranged at the lower part, a condenser 10 and an evaporator 11, wherein the evaporator 11 is connected with the hot air blower 7. The heat exchanger 9 is a plate heat exchanger, and uses copper fins with anticorrosive nano-coatings sprayed on the surfaces for heat dissipation, and the condenser 10 uses hydrophilic aluminum fins for condensation. The damp-heat circulating air and the dehumidified circulating air contact with the heat exchanger 9 to recover part of heat.

The roof of drying chamber 1 is opened has air outlet 3, and the roof of heat transfer chamber 2 is opened has air intake 4, and the circulating fan 5 one end that is located drying chamber 1 and heat transfer chamber 2 outside is connected air outlet 3, and the air intake 4 is connected to the other end, with drying chamber 1 and heat transfer chamber 2 intercommunication, with the moist heat circulation wind transmission in the heat transfer chamber 2 to drying chamber 1. The circulating fan 5 is externally arranged, so that the circulating fan can be prevented from working in a closed high-temperature environment for a long time, and the circulating fan is safer and more stable.

Since the belt dryer 6 needs to be accommodated, the drying chamber 1 has a long length, and a plurality of connected heat exchange chambers 1 are connected to the drying chamber 1 by circulating fans 5, respectively. A condensed water outlet 13 communicated with the condenser 10 is arranged below the side wall of the heat exchange chamber 1 and used for discharging condensed water, and a hot water inlet 14 communicated with the evaporator 11 is arranged below the side wall of the heat exchange chamber 1 and used for introducing hot water into the evaporator 11. The side wall of the drying chamber 1 is provided with an openable window 15, and the hot air blower 7 is arranged below the window 15. The number of the hot air blowers 7 corresponds to the number of the heat exchange chambers 1.

When the sludge drying device works, sludge is placed on the belt type dryer 6 and moves forwards along with a conveyor belt, hot water heated by a boiler is used as a heat source, the hot water enters the evaporator 11 from the hot water inlet 14, and hot air generated by the hot air blower 7 upwards passes through the belt type dryer 6 to heat the sludge and evaporate water; the hot air passing through the belt type dryer 6 takes away the moisture of the sludge, the hot air enters the heat exchange chamber 2 from the air outlet 3 on the top wall of the drying chamber 1 through the circulating fan 5 and the air inlet 4, the bag filter 8 above the heat exchange chamber 2 filters off the peculiar smell in the damp and hot circulating air, the damp and hot circulating air passes through the heat exchanger 9 and the condenser 10, the cooled condensed water is discharged through the condensed water outlet 13 and flows into the condensed water tank, and meanwhile, the dehumidified hot air enters the circulation through the evaporator 11 again; the water content of the sludge after passing through the belt type dryer 6 is reduced from 50-80% to 10-20%, and the sludge leaves the sludge drier to enter the next step.

The sludge drying machine comprises a drying chamber 1 and a heat exchange chamber 2, wherein an air outlet 3 is formed in the top wall of the drying chamber 1, an air inlet 4 is formed in the top wall of the heat exchange chamber 2, a circulating fan 5 located outside the drying chamber 1 and the heat exchange chamber 2 is used for communicating the drying chamber 1 and the heat exchange chamber 2 through the air outlet 3 and the air inlet 4, and the circulating fan 5 is arranged externally, so that the sludge drying machine is safer and more reliable, and the risk of explosion is reduced; the drying chamber 1 comprises a belt type dryer 6 arranged on the upper portion and a hot air blower 7 arranged on the lower portion, the heat exchange chamber 2 comprises a cloth bag filter 8 arranged on the upper portion and a heat exchanger 9, a condenser 10 and an evaporator 11 arranged on the lower portion, the structure is compact, all components are smoothly matched, the sludge drying function is efficiently realized, and the environment purification is facilitated.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A sludge drying machine is characterized in that: the drying chamber is communicated with the heat exchange chamber through the air outlet and the air inlet by a circulating fan positioned outside the drying chamber and the heat exchange chamber; the drying chamber comprises a belt dryer arranged at the upper part and a hot air blower arranged at the lower part, the heat exchange chamber comprises a cloth bag filter arranged at the upper part, a heat exchanger, a condenser and an evaporator arranged at the lower part, and the evaporator is connected with the hot air blower; and the top wall of the drying chamber is provided with an explosion venting port.

2. The sludge drying machine according to claim 1, characterized in that: comprising a plurality of connected heat exchange chambers.

3. The sludge drying machine according to claim 1, characterized in that: and a condensed water outlet communicated with the condenser is arranged on the side wall of the heat exchange chamber.

4. The sludge drying machine according to claim 1, characterized in that: and a hot water inlet communicated with the evaporator is arranged on the side wall of the heat exchange chamber.

5. The sludge drying machine according to claim 1, characterized in that: the side wall of the drying chamber is provided with a window which can be opened and closed.

6. The sludge drying machine according to claim 1, characterized in that: the air heater is an explosion-proof fan.

7. The sludge drying machine according to claim 1, characterized in that: the conveying belt of the belt dryer is a Teflon mesh belt.