CN112028447A

CN112028447A - Sludge drying device

Info

Publication number: CN112028447A
Application number: CN202010958761.3A
Authority: CN
Inventors: 董志
Original assignee: Lu'an Keya Information Technology Co ltd
Current assignee: Lu'an Keya Information Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-04

Abstract

The invention discloses a sludge drying device, which comprises a sludge drying device body, a dehumidifying heat pump and a drying cavity, and is characterized in that: the sludge drying device adopts a closed drying mode of a heat pump heat recovery technology without waste heat emission, so that the power consumption of the device is very low, the consumption of electric energy is greatly saved, the device conforms to the social production policy of low-carbon production and green environmental protection, and meanwhile, the air heating speed is very high due to the utilization of the heat energy of waste gas, and the working efficiency can be greatly improved.

Description

Sludge drying device

Technical Field

The invention relates to the technical field of sludge drying, in particular to a sludge drying device.

Background

At present, municipal sludge caused by industrial wastewater discharge gradually becomes a serious environmental problem, the existing treatment mode generally transports the sludge to the same point for centralized treatment, the sludge contains a large amount of moisture, and the transportation cost is high. In addition, the existing sewage treatment method is to dry the sludge in the sewage, generally comprises direct heat drying and indirect heat drying, and the used equipment occupies larger space, has large power consumption, is not beneficial to environmental protection and has low working efficiency.

Therefore, it is necessary to develop a sludge drying device to solve the above problems.

Disclosure of Invention

The invention aims to provide a sludge drying device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sludge drying device, includes sludge drying device body, dehumidification heat pump and stoving chamber, its characterized in that: the drying device is characterized in that a first mesh belt and a second mesh belt are arranged in the drying cavity, a material baffle is arranged at the left end of the second mesh belt, a dry hot air inlet is formed in the bottom of the drying cavity, a damp and hot air exhaust port is formed in the upper part of the drying cavity, a damp and hot air temporary storage cavity is arranged above the drying cavity, a dry hot air temporary storage cavity is arranged below the drying cavity, a conveying belt is arranged below the right side of the second mesh belt, a dry material bin is arranged on the right side of the conveying belt and fixed by a dry material bin support, a hopper is arranged at the top of the right side of the sludge drying device body, a crusher is arranged below the hopper, a feeding pipe is connected below the crusher, a damp and hot air temporary storage filter is installed at the left side of the damp and hot air temporary storage cavity, the dehumidifying heat pump comprises a cooler, an evaporator and a heater, the compressor is installed to the economizer right side, the compressor right side is connected with the fan through the breather pipe.

Preferably, the temperature of the dehumidification heat pump for heating the air is not higher than 80 ℃, and the sludge drying process adopts a low-temperature fully-closed drying mode.

Preferably, a feed inlet is formed in the right side end of the upper surface of the drying cavity, and a material receiving hopper is arranged below the right side end of the second mesh belt.

Preferably, the cooler inlet is connected with a wet air inlet, the heater air outlet is connected with a dry hot air guide pipe, and a condensed water outlet is connected below the dehumidification heat pump.

Preferably, the rubbing crusher internally mounted has two rows of cutting blades, two rows of cutting blade cross arrangement, every row cutting blade installs on a center of rotation axle, rubbing crusher internally provided with the bulk cargo fill that links to each other with the hopper, install the bulk cargo board in the bulk cargo fill, the cutting blade below is provided with and connects the hopper.

Preferably, the hot and humid air exhaust port and the hot and dry air inlet are provided as one-way vents.

Preferably, the first mesh belt and the second mesh belt have the same specification, but the first mesh belt and the second mesh belt are installed in a staggered manner, and the driving structures of the first mesh belt and the second mesh belt are the same.

Preferably, a plurality of the cutting blades constitute a sludge pulverizing group, two sludge pulverizing groups are arranged in the horizontal direction, and the cutting blades of the two groups are installed crosswise while the distance between the crosswise installed cutting blades is maintained at 5-8 mm.

The invention has the technical effects and advantages that: the sludge drying device adopts a heat pump heat recovery technology closed drying mode without any waste heat emission, so that the equipment has low power consumption, the consumption of electric energy is greatly saved, the social production policy of low-carbon production and environmental protection is met, and simultaneously, the speed of heating air is fast because the heat energy of waste gas is utilized, and the working efficiency can be greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the drying device of the present invention.

FIG. 3 is a schematic structural view of the wet wind dehydration heating device of the present invention.

FIG. 4 is a schematic view of the pulverizer of the present invention.

In the figure: the sludge drying device comprises a sludge drying device body 1, a dehumidifying heat pump 2, a cooler 3, a heater 4, a wet and hot air filter 5, a wet and hot air exhaust port 6, a wet and hot air storage cavity 7, a hopper 8, a feeding pipe 9, a condensed water discharge pipe 10, an energy saver 11, a compressor 12, a fan 13, a material baffle 14, a dry and hot air storage cavity 15, a dry and hot air inlet 16, a dry material bin bracket 17, a dry material bin 18, a material conveying belt 19, a second mesh belt 20, a first mesh belt 21, a drying cavity 22, a crusher 23, an evaporator 24, a feeding port 25, a material receiving hopper 26, a condensed water outlet 27, a dry and hot air guide pipe 28, a wet and hot air inlet pipe 29, a bulk cargo plate 30, a bulk cargo hopper 31, a rotating central shaft 32, a cutting blade 33.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a sludge drying device as shown in the figure, which comprises a sludge drying device body 1, a dehumidifying heat pump 2 and a drying cavity 22, wherein the drying cavity 22 is used for drying sludge, and the sludge drying device is characterized in that: the drying chamber 22 is internally provided with a first mesh belt 21 and a second mesh belt 20, the first mesh belt 21 and the second mesh belt 20 not only play a role in transporting sludge but also increase the contact area of the sludge and air so as to improve the drying efficiency and effect, the left end of the second mesh belt 20 is provided with a material baffle 14, the material baffle 14 prevents the sludge from spilling from the first mesh belt 21 to the second mesh belt 20, the bottom of the drying chamber 22 is provided with a dry hot air inlet 16, the upper part of the drying chamber 22 is provided with a wet hot air exhaust port 6, the drying chamber 22 is provided with a temporary storage chamber 7 for wet hot air above, the drying chamber 22 is provided with a temporary storage chamber 15 for dry hot air below, the right lower part of the second mesh belt 20 is provided with a material conveying belt 19, the material conveying belt 19 is used for conveying dried sludge to the drying chamber 18, the right side of the material conveying belt 19 is provided with the drying chamber, the dry material storehouse 18 is used for depositing the sludge material after the mummification temporarily, dry material storehouse 18 is fixed by dry material storehouse support 17, 1 right side top of sludge drying device body is provided with

hopper

8, 8 below of hopper is provided with rubbing crusher 23, rubbing crusher 23 is used for smashing the area of contact of increase mud and air so that to the mummification of mud and improve the effect to the sludge drying, rubbing crusher 23 below is connected with inlet pipe 9, damp and hot air keeps in the chamber 7 left side and installs damp and hot air cleaner 5, damp and hot air cleaner 5 is arranged in the flying dust particulate matter that probably carries in the filtered air, dehumidification heat pump 2 includes cooler 3, evaporimeter 24 and heater 4, heat pump dehumidification 2 is one of the most core part of whole device, can realize that the moisture in the air is got rid of to the cooling of damp and hot air, simultaneously can reuse the heat in the damp and hot air and heat the air, can also go back to the air after a left side and heat, 2 bottoms of dehumidification heat pump are connected with comdenstion water calandria 10, evaporimeter 24 is connected with energy saver 11, energy saver 11 is the important device that realizes reusing the waste heat, compressor 12 is installed on energy saver 11 right side, compressor 12 compresses the air after the heating and stores, compressor 12 right side is connected with fan 13 through the breather pipe, fan 13 is arranged in blowing hot-air to drying chamber 22 and drives the air flow.

Further, in the above technical scheme, the temperature of the dehumidification heat pump 2 for heating the air is not higher than 80 ℃, and the sludge drying process adopts a low-temperature totally-enclosed drying mode.

Further, in the above technical solution, a feed inlet 25 is provided at the right side end of the upper surface of the drying cavity 22, and a material receiving hopper 26 is provided below the right side end of the second mesh belt 20.

Further, in the above technical solution, an inlet of the cooler 3 is connected with a wet air inlet 29, an outlet of the heater 4 is connected with a dry hot air duct 28, and a condensed water outlet 27 is connected below the dehumidifying heat pump 2.

Further, in the above technical solution, two rows of cutting blades 33 are installed inside the crusher 23, the two rows of cutting blades 33 are installed in a crossed manner, each row of cutting blades 33 is installed on a rotation center shaft 32, a bulk material hopper 31 connected with the hopper 8 is installed inside the crusher 23, a bulk material plate 30 is installed inside the bulk material hopper 31, and a receiving hopper 34 is arranged below the cutting blades 33.

Further, in the above technical solution, the hot and humid air exhaust port 6 and the hot and dry air inlet 16 are both provided as one-way ventilation ports.

Further, in the above technical solution, the specifications of the first mesh belt 21 and the second mesh belt 20 are the same, but the first mesh belt 21 and the second mesh belt 20 are installed in a staggered manner, and the driving structures of the first mesh belt 21 and the second mesh belt 20 are the same.

Further, in the above technical solution, a plurality of the cutting blades 33 form a sludge crushing group, two sludge crushing groups are arranged in the horizontal direction, and the cutting blades 33 of the two groups are installed in a crossing manner, while the distance between the cutting blades 33 installed in the crossing manner is maintained at 5-8 mm.

The working principle of the invention is as follows: firstly, sludge after primary treatment is added into a sludge drying device from a hopper, firstly, the sludge is crushed by a crusher to be dried, then, the sludge is conveyed to a first mesh belt in a drying chamber through a feeding pipe to be dewatered, then, the sludge reaches a material conveying belt through the right side end of a second mesh belt, the dried sludge is conveyed into a dry material bin, in the process of drying the sludge in the drying bin, firstly, a dehumidifying heat pump heats air to a specified temperature, then, the air is compressed by a compressor, the air is blown out to a dry hot air temporary storage chamber through a fan, the dry hot air enters the drying chamber through a dry hot air inlet to dry the sludge, the dry hot air of the sludge is changed into wet hot air, the wet hot air enters the wet hot air temporary storage chamber through a wet hot air exhaust port, then, the wet hot air is filtered by a wet hot air filter and then enters the dehumidifying heat pump, the moisture in the hot humid air is cooled and condensed, so that the moisture in the air is removed, the condensed water is discharged through a condensed water pipe, the heat carried in the hot humid air can be utilized in the process, and the drying process is completed on the premise of full sealing, so that no pollutant is discharged to the outside.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a sludge drying device, includes sludge drying device body (1), dehumidification heat pump (2) and stoving chamber (22), its characterized in that: the drying device is characterized in that a first mesh belt (21) and a second mesh belt (20) are arranged inside a drying chamber (22), a material baffle (14) is arranged at the left side end of the second mesh belt (20), a dry hot air inlet (16) is formed in the bottom of the drying chamber (22), a wet hot air exhaust port (6) is formed in the upper portion of the drying chamber (22), a wet hot air temporary storage chamber (7) is arranged above the drying chamber (22), a dry hot air temporary storage chamber (15) is arranged below the drying chamber (22), a material conveying belt (19) is arranged below the right side of the second mesh belt (20), a dry material bin (18) is arranged on the right side of the material conveying belt (19), the dry material bin (18) is fixed by a dry material bin support (17), a hopper (8) is arranged at the top of the right side of the sludge drying device body (1), a pulverizer (23) is arranged below the hopper (8), and an inlet pipe (, moist hot-air filter (5) are installed in moist hot-air temporary storage chamber (7) left side, dehumidification heat pump (2) are including cooler (3), evaporimeter (24) and heater (4), dehumidification heat pump (2) bottom is connected with comdenstion water calandria (10), evaporimeter (24) are connected with energy-saving ware (11), compressor (12) are installed on energy-saving ware (11) right side, compressor (12) right side is connected with fan (13) through the breather pipe.

2. The sludge drying device according to claim 1, wherein: the temperature of the dehumidification heat pump (2) for heating air is not higher than 80 ℃, and a low-temperature totally-closed drying mode is adopted in the sludge drying process.

3. The sludge drying device according to claim 1, wherein: a feeding hole (25) is formed in the right side end of the upper surface of the drying cavity (22), and a material receiving hopper (26) is arranged below the right side end of the second mesh belt (20).

4. The sludge drying device according to claim 1, wherein: the inlet of the cooler (3) is connected with a wet air inlet (29), the air outlet of the heater (4) is connected with a dry hot air guide pipe (28), and a condensed water outlet (27) is connected below the dehumidification heat pump (2).

5. The sludge drying device according to claim 1, wherein: rubbing crusher (23) internally mounted has two rows of cutting blade (33), two rows of cutting blade (33) cross arrangement, every row cutting blade (33) are installed on a rotation center pin (32), rubbing crusher (23) inside is provided with scattered hopper (31) that links to each other with hopper (8), install bulk cargo board (30) in scattered hopper (31), cutting blade (33) below is provided with and connects hopper (34).

6. The sludge drying device according to claim 1, wherein: the damp and hot air exhaust port (6) and the dry and hot air inlet (16) are arranged as one-way ventilation ports.

7. The sludge drying device according to claim 1, wherein: the first mesh belt (21) and the second mesh belt (20) are identical in specification, but the first mesh belt (21) and the second mesh belt (20) are installed in a staggered mode, and the driving structures of the first mesh belt (21) and the second mesh belt (20) are identical.

8. The sludge drying device according to claim 5, wherein: a plurality of the cutting blades (33) form a sludge crushing group, two sludge crushing groups are arranged in the horizontal direction, and the cutting blades (33) of the two groups are installed in a crossed mode, and the distance between the cutting blades (33) installed in the crossed mode is kept between 5 mm and 8 mm.