KR101792586B1 - Semi Dry Reactor Device for incinerator - Google Patents

Abstract

The present invention relates to a semi dry reactor (SDR) apparatus for an incinerator. According to the present invention, the SDR apparatus comprises: an SDR body having a liquid spray nozzle formed in an upper part to spray slaked lime liquid to combustion gas mixed with slaked lime powder; and a branching plate disposed at an inlet formed in an upper part of the SDR body and having a branching hole to branch the combustion gas. Accordingly, the combustion gas is supplied to the SDR body in a widely branched state and the slaked lime liquid is sprayed to the supported combustion gas, thus enhancing the reaction rate between harmful material included in the combustion gas and the slaked lime, thereby increasing collection efficiency. A slaked lime attachment prevention means is installed to prevent the slaked lime liquid to purify the combustion gas from being stuck and hardened inside the SDR body, thereby not requiring work to remove the slaked lime hardened inside the SDR body, thus being able to reduce the maintenance costs of the SDR apparatus and reduce accidents during maintenance work.

Description

Semi Dry Reactor Device for incinerator}

The present invention relates to an SDI apparatus for an incinerator, and more particularly, to an SDI apparatus for an incinerator in which an SDR main body having a liquid phase injection nozzle for injecting liquid slug with a combustion gas mixed with powdered sludge is formed, A branch plate provided with a branch hole for branching the combustion gas is provided in the inlet, and the combustion gas is supplied to the SDR body in a branched state due to the branch plate, and the liquid slaked lime is injected into the supplied combustion gas, It is possible to improve the primary purifying function of the combustion gas by improving the reaction efficiency between the harmful substances provided in the gas and the slaked lime to increase the collection efficiency and further the slaked lime attachment preventing means is further installed in the SDR main body, It is possible to prevent the liquid slaked lime which purifies the combustion gas from sticking to the inside of the SDR main body to the greatest extent, As a result relates to the SDR body inside is a need to separate the work of removing the hardened calcium hydroxide to reduce the maintenance costs of the SDR device during maintenance SD notice for the incinerator was trying to prevent accidents caused by the operation beforehand devices.

Generally, wastes generated in daily life and workplace are buried or incinerated.

Landfill and treatment of wastes generated in daily life and business sites can not treat large quantities of wastes due to limited landfill, and leachate or contaminated air generated in the process of decaying landfilled wastewater flows out into rivers, soil and air as it is So that there is a problem of contamination of streams, soil and air.

In order to solve these problems, incineration of waste products from living and working places has been made.

In order to incinerate the waste, it is composed of an incinerator for incinerating the waste and a combustion gas treatment facility for purification of the combustion gas generated in the process of incineration of the waste, which is installed at the rear end of the incinerator.

 The incinerator has at least one incinerator that receives waste and incinerates at a high temperature.

And a combustion gas treatment facility connected to the incinerator and the combustion gas duct, wherein the combustion gas generated from the incinerator is mixed with the powdered slaked lime, and the lime mix device is connected with the connection pipe, (SOx), hydrogen chloride (HCl), hydrofluoric acid (HF), and acidic gas (SDR), which are harmful substances that are formed in the combustion gas by spraying liquid slaked lime.

A conventional lime mixer is composed of a lime mix body equipped with an inlet and an outlet and having a first injection nozzle for mixing a combustion gas with powdered lime by spraying powdered lime with simultaneous introduction of combustion gas.

And a second injection nozzle connected to the outlet of the lime mix body through a connection pipe for spraying liquid slaked liquor mixed with water as a combustion gas mixed with powdered slaked lime to remove harmful substances contained in the combustion gas, .

Therefore, the combustion gas generated in the incinerator, which is an incinerator, is firstly purified through the lime mix device and the SDR device, which are the purification facilities, and the purified combustion gas is supplied to the bag filter through the discharge pipe connected to the SDR device, Since the combustion gas is discharged to the outside by secondary purification (dioxime adsorption, etc.), the combustion gas generated from the incineration apparatus can be purified to the maximum and discharged to the outside. As a result, It is.

However, the problem of the conventional SDI device for an incinerator is that a device for supplying the SDI gas to the SDR body by branching the combustion gas supplied through the inlet of the SDR body is not implemented, so that the combustion gas supplied into the SDR body through the inlet The amount of the combustion gas is remarkably reduced toward the side of the SDR body as compared with the central portion. Even if the liquid lime is injected into the combustion gas introduced into the SDR body through the second injection nozzle, There is a problem that the harmful substances that are intensively introduced can not be collected and purified by the combustion gas provided.

In addition, since the second injection nozzle for spraying the liquid slaked lime by the combustion gas is installed to be inclined downward in the diagonal direction on the upper part of the SDR body, the liquid slaked liquor injected through the second injection nozzle hardens on the inner wall of the SDR body, The solidified lime causes the central portion of the inner space of the SDR body, which purifies the combustion gas, to become narrow, which obstructs the discharge of the lower flyash, thereby causing problems such as the interruption of the processing of the incineration facility.

Therefore, since the hardened lime inside the SDR body must be removed by a separate operation, the maintenance cost of the purification facility is increased, and the waste is not incinerated using the incineration facility during the operation of removing the calcium hydroxide .

In order to solve the above problems, according to the present invention, a branch plate having a branch hole is provided at an inlet provided at an upper portion of an SDR main body into which a combustion gas flows, so that when the combustion gas flows into the SDR main body, And the liquid phase injection nozzle for spraying the liquid slaked lime by the combustion gas is inclined downwardly in the diagonal direction so that the liquid lime lime can improve the purification function for collecting and removing harmful substances provided in the combustion gas, It is possible to prevent the liquefied lime slurry which purifies the flue gas from sticking to the inside of the SDR main body due to the above-mentioned slaked lime attachment preventing means to the greatest possible extent, and thereby to prevent the hard lime from being removed from the inside of the SDR main body The maintenance cost of the SDR device can be reduced, The air injected into the SDR main body through the air blow holes constituting the antiadhesive means is injected in a state of being raised to a temperature similar to the combustion gas so that the temperature of the combustion gas is prevented from dropping due to the air, A bypass pipe connected to a blowing hole constituting a means for preventing the adhesion of the slaked lime can be connected and connected to the connection pipe so that the combustion gas can flow into the SDR body through the blow hole So that a large amount of combustion gas can be rapidly cleaned in a short time, and an object of the present invention is to provide an SDI device for an incinerator.

According to an aspect of the present invention,

SDR main body;

An inlet disposed at an upper portion of the SDR main body;

A branch plate installed inside the inlet and having a plurality of branch holes for branching the combustion gas flowing into the inlet into a large area;

A damper which is installed at a lower portion of the branch plate so as to be openable and closable and regulates the supply amount of the combustion gas supplied to the interior of the SDR main body;

A liquid-phase spray nozzle disposed on an upper portion of the SDR main body so as to be downwardly inclined inwardly so as to collect toxic substances contained in the combustion gas by spraying the liquid slaked lime into the internal space of the SDR main body and to purify the combustion gas first;

A hopper formed at the bottom of the SDR body so as to collect the liquid slaked lime in which toxic substances are collected;

And a discharge pipe for supplying the primary purified combustion gas to the bag filter.

According to the present invention, a branch plate having a branch hole is provided at an inlet provided at an upper portion of an SDR main body into which a combustion gas flows, so that the combustion gas flows into the SDR main body in a branched state when it flows into the SDR main body, Since the liquid phase injection nozzle injects the liquid slaked lime, it is possible to improve the function of firstly purifying the released combustion gas, which facilitates trapping of harmful substances and slaked lime contained in the combustion gas.

The SDR main body is further provided with a slime adhesion preventing means to prevent the liquid slime which purifies the combustion gas from being adhered to the inside of the SDR main body due to the slag adhesion prevention means to the maximum, It is possible to reduce the maintenance cost of the SDR device by eliminating the need to separately remove the hard lime.

Since the air injected into the SDR main body through the air blow holes constituting the slaked lime attachment preventing means is injected in a state of being raised to a temperature similar to the combustion gas, the temperature of the combustion gas is prevented from dropping due to the air, It is possible to improve the acid gas treatment efficiency, which is a harmful substance.

And a bypass pipe connected to the blow hole constituting the slakage adhesion preventing means is connected and connected to the connection pipe so that the combustion gas flows into the SDR body through the blow hole, It is expected that the effect of quick purification can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram of an SDI device for an incinerator of the present invention. Fig.
2 is a partially enlarged cross-sectional view showing a state in which a branch pipe and a damper are installed inside the SDR main body of the present invention.
3 is a view showing a damper installed in an SDI apparatus for an incinerator of the present invention.
4 is a view showing a branch plate of an SDI device for an incinerator of the present invention.
5 is a partially enlarged cross-sectional view showing a slaked lime attachment preventing means installed in an SDHRAL device for an incinerator of the present invention.
6 is a partially enlarged cross-sectional view showing a purifying filter installed in a discharge pipe of an SDI apparatus for an incinerator of the present invention.
7 is a view showing another embodiment of the slaked lime attachment preventing means provided in the SDHIR device for the incinerator of the present invention.
8 is a partially enlarged cross-sectional view showing an open / close valve constituting another form of the slaked lime attachment preventing means provided in the SDI apparatus for an incinerator of the present invention.
9 shows a lime mix body connected to an SDI device for an incinerator of the present invention.
10 is a view showing an impeller control means installed in a lime mix main body connected to an SDI apparatus for an incinerator of the present invention.
11 and 12 are partially enlarged cross-sectional views of an impeller control means provided in the lime mix body of the present invention.
13 is a partially enlarged cross-sectional view showing an operating state of an impeller control means provided in a lime mix main body of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

In the present invention, liquid lime slurry is injected from a lime mix body (10) into a combustion gas mixed with powdered sludge liquor to purify the combustion gas first, and the first purified combustion gas is discharged through a discharge pipe (320) ).

The SDR apparatus for injecting liquid slaked lime and purifying the combustion gas firstly comprises an SDR main body 200 as shown in Fig. 1;

An inlet 201 installed at an upper portion of the SDR main body 200;

A branch plate 220 installed in the inlet 201 and provided with a plurality of branch holes 221 for branching the combustion gas flowing into the inlet 201 into a wide area;

A damper 230 installed at a lower portion of the branch plate 220 so as to be openable and closable and regulating a supply amount of the combustion gas supplied to the inside of the SDR main body 200;

The liquid slug lime is injected into the internal space of the SDR main body 200 so that the lime is trapped in the combustion gas so that the combustion gas can be primarily purified, A liquid injection nozzle 210 for injecting liquid;

A hopper 290 formed at the lower part of the SDR main body 200 so as to collect liquid caustic soda trapped with toxic substances;

And a discharge pipe 320 for supplying the primary purified combustion gas to the bag filter.

The provision of the branch plate 220 inside the inlet 201 prevents the combustion gas supplied into the SDR main body 200 through the connection pipe 310 from being supplied only to the center of the SDR main body 200 The branch plate 220 is installed in the inlet 201 so that the branch plate 220 can be installed.

3 (a), the combustion gas is supplied while spreading widely into the SDR main body 200, and the combustion gas is supplied to the inlet 201 The supply amount of the combustion gas is controlled by the damper 230, which is opened and closed, and is supplied to the internal space of the SDR main body 200.

4, the damper 230 is installed at a lower portion of the branch plate 220, which is an inner surface of the inlet 201, and a plurality of open / close boards 231 are connected to the connection link 232 And a control opening / closing part 233 is installed on one of the connection links 232 of the plurality of connection links 232.

The opening and closing plate 231 connected to the connecting link 232 by the operation of the control opening and closing part 233 adjusts the amount of the combustion gas supplied into the SDR main body 200 while enlarging or narrowing the inlet 201 You can.

The liquid phase injection nozzle 210 injects the liquid slug lime by the combustion gas introduced into the SDR main body 200 while being branched by the branch plate 220 and spreading at the same time, thereby purifying the combustion gas first, Is installed in the SDR main body (200) to prevent the liquid caustic soda injected into the SDR main body (200) from sticking to the inner surface of the SDR main body (200) and hardening.

As shown in FIG. 1B or FIG. 5, the slak adhesion preventive means 240 forms a plurality of air holes 250 from the center to the bottom of the SDR main body 200,

A chamber 260 for accommodating the ventilation hole 250 is coupled to the outer peripheral surface of the SDR main body 200,

And an injection tube 262 for supplying air injected into the SDR main body 200 through the air blowing hole 250 is connected to the inside of the chamber 260.

At this time, it is revealed that the air blow holes 250 formed in the SDR main body 200 are formed at different heights according to the angle at which the liquid phase injection nozzles 210 are injected.

A heater unit 261 for injecting air into the SDR main body 200 in a state of being raised to a temperature similar to the temperature of the combustion gas flowing into the SDR main body 200 is installed in the inner space of the chamber 260 do.

Therefore, even if the liquid slug lime is injected into the SDR main body 200 through the liquid injection nozzle 210, the liquid slug lime sticks to the inner surface of the SDR main body 200 due to the air supplied through the slug adhesion preventing means 240, .

The liquid slug sprayed through the liquid-phase spray nozzle 210 due to the air injected through the vent hole 250 is moved together with the combustion gas below the SDR main body 200 in the direction in which the combustion gas is moved as shown in FIG. 5 Therefore, it is possible to improve the collecting ability of harmful substances and improve the primary purification of the combustion gas.

As described above, the combustion gas primarily purified in the SDR main body 200 is supplied to the bag filter (not shown) through the discharge pipe 320. Inside the discharge pipe 320, The filter 280 is coupled and disconnected to clean the primary cleaned combustion gas secondarily.

6, the purifying filter 280 includes a plurality of cases 281 made of aluminum and adhered to and detached from the discharge pipe 320;

A partition wall 282 formed at the center of the case 281 and separating the internal space of the case 281;

And a filter bag 283 which is woven with mineral wool, filled with slaked lime or activated carbon powder, and mounted in an inner space of any one of the cases 281 separated by the partition wall 282 .

Therefore, since the filter bag 283 constituting the purifying filter 280 is disposed in a staggered configuration in the discharge pipe 32, the flow rate of the combustion gas discharged through the discharge pipe 320 is not impeded So that secondary purification can be achieved.

The lime mix apparatus for supplying the combustion gas mixed with the powdered sludge to the SDR main body 200 comprises a lime mix body 10 having an inlet 10a and an outlet 10b as shown in Fig. And a blowing fan 30 for supplying the inside of the lime mix main body 10 with the flue gas flowing through the lime mix body 10a.

A powder spray nozzle 20 for spraying powdered sludge with a combustion gas introduced into the lime mix body 10 while being vortexed by the blowing fan 30 is installed near the inlet 10a on the inner wall of the lime mix body 10 do.

The impeller 70 is provided with a rotary shaft 50 across the inside of the lime mix body 10 and mixes the combustion gas and the powdered lime with high speed and discharges it to the outlet 10b. ) and (b), respectively.

The rotating shaft 50 is rotated by receiving the power of the driving motor 40 as shown in Figs. 7 (a) and 7 (b).

A drive gear 41 is installed on a drive shaft of the drive motor 40 so that the rotation shaft 50 is rotated by receiving the power of the drive motor 40 and a connection gear 51 connected to the drive gear 41 And is connected to one end of the rotary shaft 50 and connected by a belt.

The rotational force of the driving motor 40 is transmitted to the rotational shaft 50 through the connecting gear 51 connected to the driving gear 41 to rotate a plurality of impellers 70 axially rotated on the rotational shaft 50 in one direction I will.

At this time, the rotary shaft 50 is coupled to the upper surface of the support portion 53 as shown in FIG. 2 (b).

8, the impeller 70 is mounted on the rotary shaft 50 and includes an impeller shaft 71 coupled to the rotary shaft 50 and an impeller blade 72. The impeller blade 72 is connected to the lime mix body 10 to the outlet 10b of the lyme mix body 10 so as to forcibly move the combustion gas mixed with the powdered slag during the rotation of the impeller 70 to the outlet of the lime mix body 10. [

The impeller control means 80 for moving the impeller blade 72, which is the end of the impeller 70 rotated in the rotating direction of the rotating shaft 50, forward and backward to improve the mixing ratio of the powdery sludge and the combustion gas Configure further.

8, the impeller control means 80 includes brackets 60 disposed at regular intervals on the outer circumferential surface of the rotary shaft 50, and a pair of support bars 60 for supporting the center of both side surfaces of the impeller 70 (61) are formed at equal intervals along the outer peripheral surface of the bracket (60).

The supporting bar 61 and the impeller 70 are engaged with the hinge shaft 62 through the supporting bar 61 protruding from the outer circumferential surface of the bracket 60 as shown in FIG.

The slit hole 110 is formed in the rotary shaft 50 and the bracket 60 so that the lower end of the impeller 70 is inserted into the rotary shaft 50. The slit hole 110 is formed in the center of the rotary shaft 50, So that the lower end of the impeller 70 flows into the inside of the moving groove 52 through the slit hole 110.

The control shaft 90 to which the lower end of the impeller 70 introduced into the moving groove 52 is coupled is coupled with the bearing 91 in the moving groove 52 and the control shaft 90 is coupled to the moving groove The cylinder 120 having the cylinder rod 121 is coupled to one end of the control shaft 90 so as to be positioned on the upper surface of the support portion 53

9, the bearing 101 is coupled to the outer peripheral surface of the control shaft 90 and the engaging portion 102 is formed on the upper portion of the moving portion 100 so that the inner surface of the moving groove 52 The lower end of the impeller 70 is coupled to the engaging portion 102 by the hinge shaft 102.

The front and rear lengths of the slit hole 100 allowing the lower end of the impeller 70 to flow into the moving groove 52 of the rotating shaft 50 are determined by the length of the impeller shaft 71 provided in the impeller 70 So that the upper end of the impeller 70 is reciprocated forward and backward around the hinge shaft 62 when the cylinder rod 121 of the cylinder 120 is projected and retracted.

The preferred operating conditions and effects of the present invention will now be described.

First, the combustion gas generated in the process of disposing waste in an incinerator (not shown) is introduced into the lime mix body 10 through a supply pipe 300 coupled to an inlet 10a of the lime mix body 10, Lt; / RTI >

The combustion gas flowing into the lime mix body 10 flows into the lime mix body 10 while being vortexed by the rotation of the blowing fan 30 installed at the inlet 10a.

The powder injection nozzle 30 provided in the lime mix body 10 is introduced into the lime mix body 10 while the combustion gas is vortexed by the blowing fan 30 and at the same time in the vicinity of the inlet 10a, So as to be mixed with the swirling combustion gas.

The combustion gas mixed with the combustion gas swirling the powdered slaked lime is rotated in the direction in which the rotary shaft 50 is rotated by the impeller 70 that is installed on the rotary shaft 50 rotating by receiving the rotary force of the driving motor 40 The combustion gas mixed with the powdery slaked lime is forcibly moved to the outlet 10b provided in the lime mix body 10,

8, the impeller blade 72, which is the end of the impeller 70, is reciprocated forward and backward by the operation of the one-pillar control means 80 connected to the impeller 70 installed on the rotary shaft 50, The mixing ratio between the powdery lime slag and the combustion gas can be maximized within the lime mix body 10 because the internal space of the lime mix body 10 is whirled simultaneously with rotation.

The operation state of the impeller control means 80 for reciprocating the end of the impeller 70 axially mounted on the rotary shaft 50 will be described with reference to FIGS. 8 to 11. FIG.

8, the middle of the impeller 70 is coupled by a hinge shaft 62 passing through a support bar 61 protruding from the bracket 60, and the lower end of the impeller 70 is connected to the control shaft 8 of the cylinder 120 coupled to the one end of the control shaft 90 as shown in Fig. 8 in a state where the hinge shaft 103 is coupled to the coupling portion 102 of the moving portion 100 coupled to the bearing 101, (Left and right in the drawing).

At this time, the cylinder 120 for operating the control shaft 90 in the left and right directions is installed in a direction opposite to the direction in which the drive motor 40 is installed, so that the control shaft 90 is moved in and out of the rotation shaft 50 Thereby facilitating the installation of the cylinder 120 to be installed.

The moving part 100 coupled with the bearing 101 on the outer circumferential surface of the control shaft 90 at the same time that the control shaft 90 moves in and out of the moving groove 52 moves in the direction in which the control shaft 90 moves Move in the same direction.

Therefore, the impeller 70 coupled to the support bar 61 by the hinge shaft 62 is moved in the opposite direction with respect to the hinge shaft 62, so that the impeller 80 is rotated by the rotation shaft 50 are rotated in the same direction as the rotation direction, and at the same time, are reciprocated back and forth in the lime mix body 10.

11 (a), when the control shaft 90 is moved in the left direction in the figure, the center of the support bar 61 protruding from the outer circumferential surface of the bracket 60 is supported by the hinge shaft 62 The lower end of the impeller 70 is moved in the left direction in the drawing in the direction in which the control shaft 90 is moved with the hinge shaft 62 as the center and the impeller 70, The upper end of the hinge shaft 70 is moved in the right direction in the figure about the hinge shaft 62. [

11 (b), when the control shaft 90 is moved in the right direction in the drawing, the impeller 70 coupled to the support bar 61 by the hinge shaft 62 is rotated about the hinge pin 62, The lower end of the control shaft 90 is moved in the right direction in the drawing in the direction in which the control shaft 90 is moved and the upper end of the impeller 70 is moved in the leftward direction in the drawing opposite to the direction in which the control shaft 90 is moved Is moved.

Since the upper and lower ends of the impeller 70 are moved in opposite directions about the hinge shaft 62 as described above, the upper end of the impeller 70 rotated along the rotary shaft 60 rotates inside the lime mix body 10 The mixing ratio can be increased because the powdery slaked lime and the combustion gas are simultaneously mixed with the vortex of the blowing fan 30. [

Even if the impeller 70 coupled to the moving part 100 is rotated in the direction in which the rotating shaft 50 is rotated due to the moving part 100 coupled with the bearing 101 on the outer peripheral surface of the control shaft 90, The moving part 100 is moved in the same direction as the direction in which the control shaft 90 is moved owing to the bearing 101 coupled between the control shaft 90 and the moving part 100, The impeller 70 can be moved forward and backward.

The combustion gas mixed with the powdered slaked lime is introduced into the inlet 201 provided at the upper part of the SDR main body 200 through the connection pipe 310 connected to the outlet 10b of the lime mix main body 10, ).

The combustion gas mixed with the powdered calcium hydroxide supplied to the inlet 201 flows into the SDR main body 200 while passing through the branch plate 220 having the branch hole 221 as shown in FIG.

The combustion gas introduced into the SDR main body 200 is primarily purified by the liquefied lime slurry supplied through the liquid phase injection nozzle 210, while harmful substances included in the combustion gas are collected and collected by the slaked lime, The harmful substances are collected by the hopper 290 provided at the lower end of the SDR main body 200 and are discharged to the outside.

Air is supplied into the chamber 260 through the injection pipe 262 to prevent the liquid slug sprayed through the liquid injection nozzle 210 from being stuck on the inner wall of the SDR main body 200, 260 is injected into the SDR body 200 through the air blowing hole 250, and the direction of the liquid slug lining is turned downward as shown in FIG.

Therefore, the liquid slaked liquor injected through the liquid-phase spray nozzle 200 due to the air supplied into the SDR main body 200 through the air blowing hole 250 can be prevented from being stuck in the SDR main body 200, Therefore, it is not necessary for the worker to separate the hard lime in the SDR main body 200 by a separate operation, so that the maintenance cost of the SDR device can be expected to be reduced.

Since the heater 261 is installed in the inner space of the chamber 260 to blow air at a temperature similar to that of the combustion gas, the combustion gas can be prevented from being cooled by the air injected through the blow hole 250 Therefore, it is possible to improve the primary cleaning power of the combustion gas by improving the trapping of the harmful substances and the slaked lime contained in the combustion gas.

The combustion gas first purified in the SDR main body 200 is supplied to a bag filter (not shown) through a discharge pipe 320. The discharge pipe 320 is woven into a mirror barrel, Since the filter bag 283 filled with the slaked lime or the activated carbon powder is coupled to the case 281 in a zigzag form, the primary purified combustion gas is secondarily purified before being supplied to the bag filter (not shown) It is possible to expect the effect of purifying as much as possible.

The filter bag 283 constituting the purifying filter 280 may be arranged in a zigzag shape as shown in FIG. 6, and the effect of performing the second purifying operation without hindering the moving speed of the discharged gas may be expected.

12 and 13 illustrate another embodiment of the slaked lime attachment preventing means 240 of the present invention. The same reference numerals are used for the same constituent elements and the description of the same reference numerals will be omitted.

Another embodiment of the slak adhesion preventing means 240 is to supply the combustion gas through the blow hole 250 so that the liquid slaked liquor injected through the liquid phase injection nozzle 210 is stuck on the inner wall of the SDR main body 200 So that it can be prevented.

A bypass pipe 270 connected to the connection pipe 310 is installed on the outer circumferential surface of the chamber 260 so that the combustion gas is injected into the SDR main body 200 through the ventilation hole 250.

An opening / closing valve 272 for adjusting the amount of combustion gas supplied to the blowing hole 250 by adjusting the amount of opening of the bypass passage 270 is installed on the inside of the bypass pipe 270 connected to the connection pipe 310 .

Therefore, since the combustion gas is injected into the SDR main body 200 through the bypass pipe 270, it is possible to prevent the liquid caustic soda from being stuck on the inner surface of the SDR main body 200, It is possible to expect the effect that the combustion gas can be cleaned in a short time due to the combustion gas injected into the SDR main body 200 through the exhaust gas.

Also, since the liquid slug lime is not buried on the inner wall of the SDR main body 200 due to the combustion gas injected through the air blow hole 250, the liquid lime slug can be prevented from being stuck on the inner wall of the SDR main body 200, There is no need to separately remove the calcium oxide so that the maintenance cost of the SDR device can be reduced.

10: lime mix body, 10a: inlet,
10b: outlet, 20: powder jet nozzle,
30: a blowing fan, 40: a driving motor,
41: driving gear, 50: rotating shaft,
51: connecting gear, 52: moving groove,
53: support part, 60: bracket,
61: support bar, 62: hinge shaft,
70: impeller, 71: impeller shaft,
72: impeller blade, 80: impeller control means,
90: control shaft, 91: bearing,
100: moving part, 101: bearing,
102: coupling portion, 103: hinge shaft,
110: Slit hole, 120: Cylinder,
121: cylinder rod, 200: SDR main body,
201: inlet, 210: liquid-phase spray nozzle,
220: branch plate, 221: branch hole,
230: damper, 231: open / close plate,
232: connection link, 233:
240: slaked lime attachment preventing means, 250: ventilation hole,
260: chamber, 261: heater section,
270: bypass pipe, 272: opening / closing valve,
280: purifying filter, 281: case,
282: bulkhead, 283: filter bag,
290: hopper, 300: feed pipe,
310: connector, 320: outlet,

Claims (5)

A lime mix body 10 having an inlet 10a and an outlet 10b; A blowing fan 30 for swirling the combustion gas flowing through the inlet 10a and supplying it into the lime mix main body 10; A powder spray nozzle 20 disposed on the inner wall of the lime mix body 10 adjacent to the inlet 10a for spraying powdered slaked lime; A rotating shaft 50 installed across the inside of the lime mix body 10; An impeller 70 which is pivoted on the rotating shaft 50 and mixes the combustion gas and the powdered lime powder while rotating at a high speed and discharges the mixed powder to the SDR main body 200 through the outlet 10b; And an impeller control means (80) for reciprocating the end of the impeller (70) axially mounted on the rotary shaft (50) to reciprocate forward and backward to improve the mixing ratio of the powdery slag and the combustion gas. In the apparatus,
The SDI device
An SDR main body 200;
An inlet 201 installed at an upper portion of the SDR main body 200;
A branch plate 220 installed in the inlet 201 and provided with a plurality of branch holes 221 for branching the combustion gas flowing into the inlet 201 into a wide area;
A damper 230 installed at a lower portion of the branch plate 220 so as to be openable and closable and regulating a supply amount of the combustion gas supplied to the inside of the SDR main body 200;
The liquid slug lime is injected into the internal space of the SDR main body 200 so that the lime is trapped in the combustion gas so that the combustion gas can be primarily purified, A liquid injection nozzle 210 for injecting liquid;
A hopper 290 formed at the lower part of the SDR main body 200 so as to collect liquid caustic soda trapped with toxic substances;
And a discharge pipe (320) for supplying the primary purified combustion gas to the bag filter,
The impeller control means (80) of the lime mix device
A bracket 60 installed at regular intervals on the outer peripheral surface of the rotary shaft 50;
A pair of support bars 61 formed on the outer circumferential surface of the bracket 60 so as to support the center of both side surfaces of the impeller 70;
A hinge shaft 62 passing through the supporting bar 61 and the impeller 70;
A slit hole 110 formed in the rotary shaft 50 and the bracket 60 so that the lower end of the impeller 70 is inserted into the rotary shaft 50;
A moving groove 52 formed at an inner center of the rotating shaft 50;
A control shaft (90) installed in the moving hole (52) so that the lower end of the impeller (70) is coupled to the moving hole (52);
A cylinder 120 coupled to one end of the control shaft 90 and having a cylinder rod 121 configured to reciprocate the end of the impeller 70 forward and backward by operating the control shaft 90 forward and backward, ). ≪ / RTI >
The method according to claim 1,
(240) for preventing the liquid slug from sticking to the inner surface of the SDR main body (200) by being separated from the inner surface of the SDR main body (200) so as to prevent the liquid slug from being sprayed from the liquid spray nozzle ) Is installed in the SDR main body (200).
The slak adhesion preventing means (240) according to claim 2,
A plurality of air blow holes 250 are formed from the center to the bottom of the SDR main body 200,
A chamber 260 for accommodating the ventilation hole 250 is coupled to the outer peripheral surface of the SDR main body 200,
An injection tube 262 for supplying air injected into the SDR main body 200 through the air blowing hole 250 is connected to the inside of the chamber 260,
A heater unit 261 for injecting air into the SDR main body 200 in a state of being raised to a temperature similar to the combustion gas flowing into the SDR main body 200 is installed in the inner space of the chamber 260 The SDI device for the incinerator is characterized.
The slak adhesion preventing means (240) according to claim 2,
A plurality of air blow holes 250 are formed from the center to the bottom of the SDR main body 200,
The chamber 260 accommodating the air blowing hole 250 is coupled to surround the outer peripheral surface of the SDR main body 200,
The bypass pipe 270 communicating with the inside of the chamber 280 is connected to the connection pipe 310 connected to the inlet 201 so that the combustion gas is injected into the SDR main body 200 through the ventilation hole 250 Wherein the gasifier comprises a gasifier.
The method according to claim 1,
A plurality of purifying filters 280 for purifying the first purified purifying combustion gas are connected to the exhaust pipe 320,
The purifying filter 280,
A plurality of cases 281 made of an aluminum material to be adhered to and detached from the discharge pipe 320;
A partition wall 282 formed at the center of the case 281 and separating the internal space of the case 281;
And a filter bag (283) which is woven with mineral wool, filled with slaked lime or activated carbon powder, and mounted in an inner space of one of the cases (281) separated by the partition (282)
A plurality of purifying filters 280 are installed in the discharge pipe 320,
Wherein the filter bag (283) constituting the purifying filter (280) is disposed in a zigzag shape so that the secondary purification is performed without inhibiting the moving speed of the exhaust gas discharged from the filter bag .

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