CN216244302U - Waste incineration boiler adds hot water softening installation - Google Patents

Abstract

The utility model discloses a water heating softening device for a waste incineration boiler, wherein an evaporator, a high-temperature superheater and an economizer are sequentially arranged in the waste incineration boiler along the flowing direction of high-temperature airflow, a smoke outlet of the waste incineration boiler is provided with a smoke exhaust pipeline, and the smoke exhaust pipeline is communicated with a bag-type dust remover through a smoke dust treatment chamber; the smoke dust treatment chamber comprises a smoke gas shunt pipe, a closed chamber and a plurality of smoke dust separators, a water softening and preheating mechanism is arranged at the feed end of the evaporator, and the water softening and preheating mechanism comprises a full-automatic sodium ion exchanger and a heat exchange pipe bank. This add hot water softening installation handles the msw incineration flue gas, effectively gets rid of under the prerequisite of particulate matter in the flue gas, can also effectively utilize the waste heat in the flue gas, improves the temperature of soft water, reduces the consumption of external energy, increases extra benefit to and utilize the waste liquid that produces soft water and obtain to press down the dirt to handle the dust of collecting, the humidifying dust, reduce the volume, the screw conveyer's of being convenient for dust cleaning work.

Description

Waste incineration boiler adds hot water softening installation

Technical Field

The utility model relates to the technical field of waste incineration boilers, in particular to a water heating and softening device for a waste incineration boiler.

Background

Along with the rapid development of social economy in China, the amount of garbage waste generated in the production and living processes is increased, the land occupation, the environment pollution and the potential influence on the health of people of the household garbage are more obvious, the garbage can be reasonably utilized for realizing the treatment targets of harmlessness, reclamation and reduction of the garbage, the garbage treatment trend is to carry out incineration treatment on the garbage, the incineration treatment is a garbage treatment technology widely used at present, the reclamation and the reduction can be realized, and meanwhile, the problem of pollutant emission control is generated. The waste incineration boiler is a device which is commonly used for harmless treatment in the aspects of medical and domestic waste and harmless treatment of animals and generates steam. The principle is that the objects to be treated are incinerated and carbonized at high temperature by utilizing the combustion of fuels such as coal, fuel oil, fuel gas and the like so as to achieve the aim of disinfection.

The pollutants generated in the household garbage incineration process mainly comprise four types: particulate matter (soot), acidic gases (CO, NOX, SO2, HCl, etc.), heavy metals (Hg, Cr, Pb, etc.), and organic pollutants (mainly factors of dioxins). And the classification, recovery and treatment capacities of domestic garbage in China are relatively lagged with horizontal development, the original domestic garbage contains various wastes, some wastes contain excessive water, and some wastes are difficult to burn, so that the garbage has low combustion efficiency, large smoke dust and excessive particulate matters in smoke gas in the burning process, the treatment effect of directly connecting the waste burning smoke gas with a dust removal device (a bag-type dust remover) is poor, and the problems of large dust removal amount of the device, large working pressure of the device, high energy (electricity and gas) consumption, even equipment damage and frequent replacement of dust removal parts (bags) are reflected, and the phenomena of low treatment effect on acid gas, heavy metal and organic pollutants in the burning smoke gas, caused by other smoke gas treatment and purification devices, are indirectly caused.

Meanwhile, in order to prolong the service life of the waste incineration boiler, improve the heating efficiency and ensure the operation safety of equipment, the waste incineration boiler needs to use soft water to prevent or reduce the phenomena of scaling and rusting of the equipment caused by a water body; and the temperature of the water body used by the equipment is raised, so that the phenomena of large temperature difference and uneven heating of the equipment caused by the overlarge sudden change of the internal and external water temperatures are prevented. Generally, a preheater and a boiler water softener are used for obtaining preheated soft water with a certain temperature, but equipment needs to be added and energy is input; in addition, the backwashing of the boiler water softener also brings waste water, and the benefit is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water softening device for heating a waste incineration boiler, which aims to solve the problem that the treatment effect of smoke is influenced by excessive particulate matters in the smoke of the waste incineration boiler; and the incineration boiler uses the preheater and the preheated soft water obtained by the boiler water softener treatment, which increases the cost input and brings wastewater, thus the benefit is not ideal.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a heating water softening device for a waste incineration boiler comprises the waste incineration boiler, wherein an evaporator, a high-temperature superheater and a coal economizer are sequentially arranged in the waste incineration boiler along the flowing direction of high-temperature airflow, a smoke exhaust pipeline is arranged at a smoke outlet of the waste incineration boiler, and the smoke exhaust pipeline is communicated with a bag-type dust remover through a smoke treatment chamber; wherein the content of the first and second substances,

the smoke dust treatment chamber comprises a smoke gas shunt pipe, a closed chamber and a plurality of smoke dust separators, wherein a smoke inlet of the smoke gas shunt pipe is communicated with a smoke outlet of the waste incineration boiler, the smoke dust separators are uniformly arranged in the closed chamber, a smoke inlet of each smoke dust separator is in one-to-one correspondence with and communicated with a plurality of smoke inlets of the smoke gas shunt pipe, and smoke outlets of the smoke dust separators are communicated with an air inlet end of the bag-type dust collector;

the feed end of evaporimeter sets up the water and softens and preheat the mechanism, the water softens and preheat the mechanism and include full-automatic sodium ion exchanger and heat exchange tube bank, the heat exchange tube bank is the heliciform and installs the surface of smoke and dust separator, the end of intaking of heat exchange tube bank with the soft water outlet intercommunication of full-automatic sodium ion exchanger, the play water end of heat exchange tube bank with the end intercommunication of intaking of evaporimeter.

The further technical scheme is as follows: the dust separator includes dust collecting cylinder, cartridge filter and ash discharge mechanism, the dust collecting cylinder is installed airtight indoor and with the outlet flue intercommunication of flue gas shunt tubes, the coaxial setting of cartridge filter is in the dust collecting cylinder, just the end of giving vent to anger of cartridge filter stretches out the cartridge filter outer with the inlet end intercommunication of sack cleaner, ash discharge mechanism installs just through setting up in the cartridge filter airtight outdoor motor drive.

The further technical scheme is as follows: arrange grey mechanism and include carousel and helical blade, at least one the coaxial setting of carousel just rotates to be installed on the inside wall of dust collecting cylinder, helical blade's one end is installed on the lateral surface of carousel, just the terminal surface at helical blade internal diameter place slides and sets up on the cartridge filter outer peripheral face slides and sets up.

The further technical scheme is as follows: and each smoke outlet of the smoke dust separator is provided with an electromagnetic valve.

The further technical scheme is as follows: and the air inlet and the air outlet of the closed chamber are respectively provided with a digital pressure gauge.

The further technical scheme is as follows: and an injection pipe is arranged in the filter cylinder, and the air inlet end of the injection pipe penetrates out of the dust collecting cylinder and the closed chamber to be communicated with an external high-pressure air source.

The further technical scheme is as follows: the inner lower part of the closed chamber and the smoke dust separator are provided with a separation plate, the separation plate and the inner lower part of the closed chamber form an ash storage cavity, the ash storage cavity is communicated with a discharge hole of the smoke dust separator, and a spiral conveyor is arranged in the ash storage cavity.

The further technical scheme is as follows: the back flushing liquid outlet end of the full-automatic sodium ion exchanger is communicated with a waste liquid box, the waste liquid box is communicated with a spray pipe through a water pump, the spray pipe is installed on the outer wall of the ash storage cavity, and the water outlet end of the spray pipe is located inside the ash storage cavity.

Compared with the prior art, the utility model can at least achieve one of the following beneficial effects:

the utility model provides a water heating softening device for a waste incineration boiler, wherein a flue gas dust removal device is used for treating waste incineration flue gas which is generated in the waste incineration boiler and does not enter dust removal equipment, so that particulate matters in the flue gas are effectively removed, and the working pressure of subsequent environment-friendly equipment is reduced; in addition, the smoke dust treatment chamber in the smoke dust removal device is used for shunting and treating smoke, the air flow is small, the dust removal effect is improved, dust can be temporarily stored after dust and the smoke are separated by the smoke dust separator in the smoke dust treatment chamber, each smoke dust separator works independently, and dust removal, dust storage and dust removal are not interfered with each other; and the heat exchange tube bank of the water softening and preheating mechanism is spirally arranged on the outer surface of the smoke dust separator, so that the waste heat in the smoke can be effectively utilized, the temperature of the soft water is increased, the consumption of external energy is reduced, and the benefit is increased.

In addition, the dust separator can conveniently and quickly clean dust in the dust separator through the dust discharging mechanism, and can also remove dust on a filter cartridge in the dust separator; and the filter cartridge is cleaned through the blowing pipe, so that the filtering effect of the smoke separator on smoke is improved.

The collected dust is sprayed by the back washing waste liquid of the full-automatic sodium ion exchanger in the waste liquid tank through the water pump, so that the dust suppression treatment can be effectively carried out, the dust is humidified, the volume is reduced, the dust cleaning work of the screw conveyor is facilitated, and the waste liquid is recycled.

Drawings

FIG. 1 is a schematic structural view of a water softening device for heating water in a waste incineration boiler according to the present invention.

FIG. 2 is a schematic structural view of the fume treatment chamber and the water softening and preheating mechanism shown in FIG. 1.

Reference numerals: 1. a waste incineration boiler; 2. a smoke exhaust duct; 3. a smoke processing chamber; 4. a bag-type dust collector; 5. a flue gas shunt pipe; 6. a closed chamber; 7. a smoke dust separator; 8. a dust collection canister; 9. a filter cartridge; 10. an ash discharge mechanism; 101. a turntable; 102. a helical blade; 11. an evaporator; 12. a high temperature superheater; 13. a coal economizer; 14. an electromagnetic valve; 15. a digital pressure gauge; 16. a blowing pipe; 17. a water softening and preheating mechanism; 18. a full-automatic sodium ion exchanger; 19. heat exchange tube rows; 20. a separator plate; 21. a dust storage cavity; 22. a screw conveyor; 23. a waste liquid tank; 24. a water pump; 25. a shower pipe; 26. an electric motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

in the embodiment, as shown in fig. 1 and 2, a water softening device for heating water of a waste incineration boiler has the following structure: the waste incineration boiler comprises a waste incineration boiler 1 for conventional waste incineration treatment, wherein an evaporator 11, a high-temperature superheater 12 and an economizer 13 are sequentially arranged in the waste incineration boiler 1 along the flow direction of high-temperature airflow and are used for heating water by using combustion heat to generate usable steam, a smoke exhaust pipeline 2 is arranged at a smoke outlet of the waste incineration boiler 1, and the smoke exhaust pipeline 2 is communicated with a bag-type dust collector 4 through a smoke dust treatment chamber 3; the smoke dust processing chamber 3 comprises a smoke gas shunt pipe 5, a closed chamber 6 and a plurality of smoke dust separators 7, the smoke inlet of the smoke gas shunt pipe 5 is communicated with the smoke outlet of the waste incineration boiler 1, the smoke dust separators 7 are uniformly arranged in the closed chamber 6, the smoke inlet of each smoke dust separator 7 is in one-to-one correspondence with and communicated with the smoke inlets of the smoke gas shunt pipe 5, the smoke outlet of the smoke dust separator 7 is communicated with the air inlet end of the bag-type dust collector 4, the feed end of the evaporator 11 is provided with a water softening and preheating mechanism 17, the soft water preheating and water body softening mechanism 17 comprises a full-automatic sodium ion exchanger 18 and a heat exchange tube bank 19, the heat exchange tube bank 19 is spirally arranged on the outer surface of the smoke dust separator 7, the water inlet end of the heat exchange tube bank 19 is communicated with the soft water outlet of the full-automatic sodium ion exchanger 18, and the water outlet end of the heat exchange tube bank 19 is communicated with the water inlet end of the evaporator 11.

The working process of the utility model is as follows: set up smoke and dust treatment chamber 3 between waste incineration boiler 1's exhaust pipe 2 and sack cleaner 4, when waste incineration boiler 1 began to burn rubbish, most particulate matters in a large amount of dust (particulate matter) in the flue gas through the earlier one-step separation flue gas behind smoke and dust treatment chamber 3 reduce the work load (pressure) of sack cleaner 4, reduce its energy consumption (the consumption of electricity and gas), improve the life of filter dust sack. Specifically, the method comprises the following steps: during dusty flue gas gets into a plurality of smoke and dust separators 7 after passing through flue gas shunt tubes 5 reposition of redundant personnel, the dust removal pressure of reduction equipment to the atmospheric content dusty flue gas, improve dust removal effect, little flow's dusty flue gas reposition of redundant personnel gets into a plurality of smoke and dust separators 7 in the sealed chamber 6, separate the collection to flue gas and dust (particulate matter), the flue gas that the discharge contains few particulate matter gets into sack cleaner 4, when continuing to carry out conventional purification treatment with conventional environmental protection equipment to contaminated gas, treatment effect and efficiency have obviously been promoted.

In addition, the smoke and dust is directly discharged from the waste incineration boiler 1, so certain heat is carried, the heat exchange tube bank 19 of the water softening and preheating mechanism 17 is spirally arranged on the outer surface of the smoke and dust separator 7, the waste heat in the smoke and dust can be effectively utilized, the temperature of soft water is increased, the consumption of external energy is reduced, and the benefit is increased.

Example two:

in this embodiment, the dust separator 7 includes a dust collecting cylinder 8, a filter cylinder 9 and an ash discharging mechanism 10, the dust collecting cylinder 8 is installed in the sealed chamber 6 and is communicated with the smoke outlet of the smoke shunt tube 5, the filter cylinder 9 is coaxially arranged in the dust collecting cylinder 8, the air outlet end of the filter cylinder 9 extends out of the filter cylinder 9 and is communicated with the air inlet end of the bag-type dust collector 4, and the ash discharging mechanism 10 is installed in the filter cylinder 9 and is driven by a motor 26 arranged outside the sealed chamber 6.

In the dust collecting cylinder 8 is gone into with the smoke and dust to smoke exhaust pipe 2, the cigarette filters through cartridge filter 9 with dirt, can stay most in the dust collecting cylinder 8 with the separation, and the flue gas after the processing enters into sack cleaner 4 through the end of giving vent to anger of cartridge filter 9 in, and the dust in the dust collecting cylinder 8 can be discharged through dust discharging mechanism 10.

Preferably, the dust discharging mechanism 10 includes a rotating disc 101 and a spiral blade 102, at least one rotating disc 101 is coaxially disposed and rotatably mounted on the inner side wall of the dust collecting cylinder 8, one end of the spiral blade 102 is mounted on the outer side surface of the rotating disc 101, and the end surface where the inner diameter of the spiral blade 102 is located is slidably disposed on the outer peripheral surface of the filter cylinder 9.

The turntable 101 of the ash discharge mechanism 10 is driven by the motor 26 to rotate, and drives the helical blade 102 to rotate around the outer peripheral surface of the filter cartridge 9, so that on one hand, dust in the dust collecting cartridge 8 is cleaned, on the other hand, dust on the outer peripheral surface of the filter cartridge 9 is removed, and the working effect of the smoke dust separator 7 is ensured.

It is worth noting that: considering that the long helical blade 102 shakes or deforms when rotating, the end face where the inner diameter of the helical blade 102 is located is arranged on the outer peripheral surface of the filter cylinder 9 in a sliding mode, and two symmetrical rotary discs 101 are arranged on two inner side walls of the dust collecting cylinder 8, so that the strength and the rotational stability of the helical blade 102 are improved.

Preferably, a solenoid valve 14 is provided on each smoke outlet of the smoke separator 7.

When any one of the dust separators 7 needs to discharge dust, the electromagnetic valve 14 corresponding to the air inlet end is closed, so that dust is prevented from being blown out of the discharged air.

Preferably, the air inlet and the air outlet of the closed chamber 6 are respectively provided with a digital pressure gauge 15.

The difference between the two digital pressure gauges 15 is used as a criterion for judging whether the dust separator 7 discharges dust and the filter cartridge 9 is cleaned.

Preferably, a blowing pipe 16 is arranged in the filter cylinder 9, and the air inlet end of the blowing pipe 16 penetrates through the dust collecting cylinder 8 and the closed chamber 6 to be communicated with an external high-pressure air source.

The dust of the filter cartridge 9 is blown out by the high-pressure air flow, and the dust filtering effect of the filter cartridge 9 is improved.

Preferably, a partition plate 20 is arranged between the inner lower part of the closed chamber 6 and the smoke dust separator 7, an ash storage cavity 21 is formed by the partition plate 20 and the inner lower part of the closed chamber 6, the ash storage cavity 21 is communicated with a discharge hole of the smoke dust separator 7, and a screw conveyor 22 is arranged in the ash storage cavity 21. The back flushing liquid outlet end of the full-automatic sodium ion exchanger 18 is communicated with a waste liquid tank 23, the waste liquid tank 23 is communicated with a spray pipe 25 through a water pump 24, the spray pipe 25 is arranged on the outer wall of the ash storage cavity 21, and the water outlet end of the spray pipe 25 is positioned inside the ash storage cavity 21.

The dry dust (particulate matters) in the dust collecting cylinder 8 is discharged into the dust storage cavity 21 through the dust discharging mechanism 10, and is sprayed and dust-suppression treatment is carried out by utilizing the back flush waste liquid of the full-automatic sodium ion exchanger 18 in the waste liquid tank 23 through the water pump 24, and the dust is humidified, the volume is reduced, and the spiral conveyor 22 is convenient to clean.

Note that: the feed end of the screw conveyor 22 has a suitable width to communicate with the ash storage chamber 21.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (8)

1. The utility model provides a msw incineration boiler adds hydrothermal softening installation, includes msw incineration boiler (1), along high temperature air current flow direction in the msw incineration boiler (1) set gradually evaporimeter (11), high temperature over heater (12) and economizer (13), its characterized in that: a smoke outlet of the waste incineration boiler (1) is provided with a smoke exhaust pipeline (2), and the smoke exhaust pipeline (2) is communicated with a bag-type dust collector (4) through a smoke dust treatment chamber (3); wherein the content of the first and second substances,

the smoke and dust treatment chamber (3) comprises a smoke and dust shunt pipe (5), a closed chamber (6) and a plurality of smoke and dust separators (7), wherein a smoke inlet of the smoke and dust shunt pipe (5) is communicated with a smoke outlet of the waste incineration boiler (1), the smoke and dust separators (7) are uniformly arranged in the closed chamber (6), a smoke inlet of each smoke and dust separator (7) is in one-to-one correspondence with and communicated with a plurality of smoke inlets of the smoke and dust shunt pipe (5), and a smoke outlet of each smoke and dust separator (7) is communicated with an air inlet end of the cloth bag dust collector (4);

the feed end of evaporimeter (11) sets up water and softens and preheat mechanism (17), water softens and preheat mechanism (17) and include full-automatic sodium ion exchanger (18) and heat transfer bank of tubes (19), heat transfer bank of tubes (19) are the heliciform and install the surface of smoke and dust separator (7), the end of intaking of heat transfer bank of tubes (19) with the soft water outlet intercommunication of full-automatic sodium ion exchanger (18), the water outlet end of heat transfer bank of tubes (19) with the end intercommunication of intaking of evaporimeter (11).

2. The waste incineration boiler heating water softening device according to claim 1, characterized in that: dust separator (7) are including dust collecting cylinder (8), cartridge filter (9) and ash discharge mechanism (10), install dust collecting cylinder (8) in closed chamber (6) and with the outlet flue intercommunication of flue gas shunt tubes (5), cartridge filter (9) coaxial setting is in dust collecting cylinder (8), just the end of giving vent to anger of cartridge filter (9) stretches out cartridge filter (9) outer with the inlet end intercommunication of sack cleaner (4), ash discharge mechanism (10) are installed just through setting up in cartridge filter (9) closed chamber (6) outer motor (26) drive.

3. The waste incineration boiler heating water softening device according to claim 2, characterized in that: the ash discharging mechanism (10) comprises a rotary disc (101) and spiral blades (102), at least one rotary disc (101) is coaxially arranged and rotatably mounted on the inner side wall of the dust collecting cylinder (8), one end of each spiral blade (102) is mounted on the outer side surface of the rotary disc (101), and the end surface where the inner diameter of each spiral blade (102) is located is slidably arranged on the outer peripheral surface of the filter cylinder (9).

4. The waste incineration boiler heating water softening device according to claim 1, characterized in that: each smoke outlet of the smoke dust separator (7) is provided with an electromagnetic valve (14).

5. The waste incineration boiler heating water softening device according to claim 1, characterized in that: and a digital pressure gauge (15) is respectively arranged at the air inlet and the air outlet of the closed chamber (6).

6. The waste incineration boiler heating water softening device according to claim 2, characterized in that: and a blowing pipe (16) is arranged in the filter cylinder (9), and the air inlet end of the blowing pipe (16) penetrates out of the dust collecting cylinder (8) and the closed chamber (6) to be communicated with an external high-pressure air source.

7. The waste incineration boiler heating water softening device according to claim 1, characterized in that: the interior lower part of airtight chamber (6) with be provided with division board (20) between smoke and dust separator (7), division board (20) with the interior lower part of airtight chamber (6) forms ash storage cavity (21), ash storage cavity (21) with the discharge gate intercommunication of smoke and dust separator (7), be provided with screw conveyer (22) in ash storage cavity (21).

8. The waste incineration boiler heating water softening device according to claim 7, characterized in that: the back flushing liquid outlet end of the full-automatic sodium ion exchanger (18) is communicated with a waste liquid tank (23), the waste liquid tank (23) is communicated with a spray pipe (25) through a water pump (24), the spray pipe (25) is installed on the outer wall of the ash storage cavity (21), and the water outlet end of the spray pipe (25) is located inside the ash storage cavity (21).

Images