CN205505044U - Flue gas waste heat dust removal recycle device - Google Patents

Abstract

The utility model discloses a flue gas waste heat dust removal recycling device. The device adopts a plurality of densely distributed heat exchange pipes to recycle the waste heat of the flue gas. There is a spray device in the room to reduce the dust of the flue gas, and then the dust-free gas is discharged from the exhaust port on the upper part of the dust removal chamber, and the sewage is discharged from the sewage outlet at the bottom of the dust removal chamber to the sewage pool, and then goes out from the drain port for the next step of treatment. The device can not only achieve the effect of efficiently and fully recovering and utilizing the waste heat of flue gas. At the same time, it can better fully settle the harmful substances in the flue gas. It has achieved the goals of energy saving, emission reduction, green environmental protection, safety and high efficiency.

Description

A flue gas waste heat dust removal recovery device

technical field

The utility model relates to a waste heat recycling device, in particular to a smoke waste heat dust removal recycling device.

Background technique

With the rising energy prices and the implementation of the national energy conservation and emission reduction environmental protection policy, people pay more and more attention to energy conservation and environmental protection. In daily life, in thermal energy boilers with gas, biomass fuel, etc. as raw materials, the waste heat of the flue gas is generally at 200-300°C. In order to collect this part of energy, there have been many waste heat recovery and dust removal devices for flue gas, but most of the structures Unreasonable, resulting in low recycling efficiency; in addition, harmful substances such as soot in the flue gas will damage our ecological environment, such as the recent frequent smog weather.

Utility model content

Based on the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a flue gas waste heat dedusting recycling device, which efficiently and fully recycles the flue gas waste heat and performs dust removal treatment on the flue gas.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a flue gas waste heat dust removal and recycling device, including a sewage tank, a dust removal room, and a heat exchange room. The upper side of the heat exchange room is provided with a water inlet, and the lower part There is a water outlet on the other side, and an air intake chamber below. The flue gas enters the heat exchange chamber from the bottom to the top through the air intake chamber, and the water enters the heat exchange chamber from the top to the bottom through the upper water inlet. The air intake chamber is connected to the dust removal chamber through a plurality of heat exchange pipes through the air outlet pipe; the dust removal chamber is equipped with a spray device, and the spray device is located on the top of the dust removal chamber, and the spray device is uniformly provided with water from the outside through the spray water inlet. , the upper side of the dust removal chamber is provided with an exhaust port, the sewage outlet at the bottom of the dust removal chamber extends into the bottom of the sewage pool, one side of the sewage pool is provided with a dust removal port, and the other side of the sewage pool is provided with sewage drainage The sewage is discharged from the sewage outlet at the bottom of the dust removal chamber to the sewage tank, and then goes out from the sewage outlet for the next step of treatment.

Preferably, the air inlet chamber of the heat exchange chamber is at the bottom of the heat exchange chamber.

Preferably, the upper side of the dust removal chamber is an exhaust port with the outlet facing upward.

Preferably, the ash removal port at the bottom of the sewage sedimentation tank is a drawer.

The beneficial effect of the present invention is that the flue gas waste heat and dust removal and recycling device adopts a plurality of densely distributed heat exchange tubes to recycle the waste heat of the flue gas. There is a spray device in the room to reduce the dust of the flue gas, and then the dust-free gas is discharged from the exhaust port on the upper part of the dust removal chamber, and the sewage is discharged from the sewage outlet at the bottom of the dust removal chamber to the sewage pool, and then goes out from the drain port for the next step of treatment. When the device is exchanging heat, flue gas enters the heat exchange chamber from bottom to top, while water enters the heat exchange chamber from top to bottom. This design greatly improves the heat exchange efficiency. The device not only has the effect of efficiently and fully recycling the waste heat of the flue gas, but also can better fully settle the harmful substances in the flue gas, achieving the goals of energy saving, emission reduction, environmental protection, safety and efficiency.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The following describes in detail in combination with preferred embodiments and accompanying drawings.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a structural schematic diagram of a flue gas waste heat dedusting recycling device of the present invention.

Among them: 1 sewage discharge port, 2 air intake chamber, 3 water outlet, 4 heat exchange pipe, 5 heat exchange chamber, 6 water inlet, 7 spray water inlet, 8 air outlet pipe, 9 spray device, 10 exhaust port, 11 dust removal room, 12 ash removal port, 13 sewage outlet, 14 sewage pool.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings. As a part of this description, the principle of the utility model will be described through embodiments. Other aspects, features and advantages of the utility model will become clear at a glance through the detailed description. In the referenced drawings, the same reference numerals are used for the same or similar components in different drawings.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1, a flue gas waste heat dedusting recycling device of the present invention includes a sewage tank 14, a dust removal chamber 11, and a heat exchange chamber 5, and a water inlet 6 is provided on the upper side of the heat exchange chamber 5, There is a water outlet 3 on the other side of the lower part, and an air intake chamber 2 is arranged below. The gas enters the heat exchange chamber 5 from the air intake chamber 2 from bottom to top, and the water enters the heat exchange chamber 5 from the upper water inlet 6 from top to bottom. . The air intake chamber 2 is connected to the dust removal chamber 11 on the right side through the air outlet pipe 8 through a plurality of heat exchange pipes 4; the dust removal chamber 11 is provided with a spray device 9, and the spray device 9 is located at the top of the dust removal chamber 11, and the spray The spray port of the device 9 is located at the top of the dust removal chamber 11, and the spray device 9 provides water uniformly from the outside through the spray water inlet 7. One side of the upper part of the dust removal chamber 11 is provided with an exhaust port 10, and the sewage outlet 13 at the bottom of the dust removal chamber 11 stretches into the bottom of the sewage pool 14; There is a sewage outlet 1 on the other side, and the sewage is discharged from the sewage outlet 1 for further treatment.

The working principle of the present invention is: the heat exchange tube 4 absorbs the waste heat of the flue gas, then the cold flue gas enters the dust removal chamber 11, the spray device 9 in the dust removal chamber 11 dedusts the flue gas, and then the dust-free gas flows from the upper part of the dust removal chamber The exhaust port 10 is discharged, and the sewage is discharged from the sewage outlet 13 at the bottom of the dust removal chamber 11 to the sewage pool 14, and the sewage is discharged through the sewage outlet. Flue gas enters the heat exchange chamber from bottom to top, while water enters the heat exchange chamber from top to bottom. This design greatly improves the heat exchange efficiency. The device not only has the effect of efficiently and fully recovering and utilizing the waste heat of the flue gas, but also can better fully settle the harmful substances in the flue gas. It has achieved the goals of energy saving, emission reduction, green environmental protection, safety and high efficiency.

The above is only the preferred implementation of the utility model, certainly not to limit the scope of rights of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the premise of the utility model principle , can also make some improvements and changes, and these improvements and changes are also regarded as the protection scope of the present utility model.

Claims (4)

1. a fume afterheat dedusting recycle device, including cesspool (14), dirt pocket (11), heat-exchanging chamber (5), it is characterized in that, the side, top of described heat-exchanging chamber (5) is provided with water inlet (6), bottom opposite side is provided with outlet (3), air inlet storehouse (2) is arranged below, gas is entered heat-exchanging chamber (5) from the bottom up by air inlet storehouse (2), and water inlet is entered heat-exchanging chamber (5) from top to bottom by top water inlet (6)；Described air inlet storehouse (2) is by multiple heat-exchange tubes (4) dirt pocket (11) on the right side of escape pipe (8) connects；Spray equipment (9) it is provided with in described dirt pocket (11), the mouth spray of spray equipment (9) is positioned at dirt pocket (11) top, and spray equipment (9) is provided water through spray water inlet (7) by outside is unified；Described dirt pocket (11) side, top is provided with air vent (10), and the outlet of sewer (13) of described dirt pocket (11) bottom extend into cesspool (14) bottom；Described cesspool (14) side is provided with cleaning door (12), and cesspool (14) opposite side has sewage effluent (1), and sewage is discharged by sewage effluent (1) and is for further processing.

Fume afterheat dedusting recycle device the most according to claim 1, is characterized in that, in described heat-exchanging chamber (5), air inlet storehouse (2) are in heat-exchanging chamber (5) bottom.

Fume afterheat dedusting recycle device the most according to claim 1, is characterized in that, described dirt pocket (11) side, top is outlet air vent (10) upward.

Fume afterheat dedusting recycle device the most according to claim 1, is characterized in that, the cleaning door (12) of described cesspool (14) bottom is a drawer.