Automatic ash removal device for tail gas treatment

Abstract

The utility model relates to the field of incinerator equipment, in particular to an automatic ash removal device for tail gas treatment. The device comprises a cooler, a condensation cavity, an atomization spraying pipe, a driving mechanism, a driving motor, a driving gear, a meshing fluted disc, a scraping plate, a supporting bearing and a sealing structure. The condensation cavity is formed in the inner wall of the condenser, an atomization spraying pipe penetrates through the top of the condensation cavity, the driving mechanism is installed at the bottom of the cooler and comprises a driving motor, a driving gear and a meshing fluted disc, the output end of the driving motor is fixedly connected with a wheel shaft of the driving gear, and the meshing fluted disc is clamped to the cavity wall of the condensation cavity. The driving gear is meshed with outer teeth of the meshing fluted disc, the inner disc wall of the meshing fluted disc extends into the condensation cavity, at least one scraper blade is fixed to the inner wall of the meshing fluted disc, the supporting bearings are divided into an upper bearing set and a lower bearing set, the supporting bearings are fixed in the condensation cavity in parallel, and the meshing fluted disc is fixedly connected with rotating inner discs of the supporting bearings. The support is used for supporting rotation of the meshing fluted disc.

Description

TECHNICAL FIELD

[0001] The utility model relates to incinerator equipment field especially a kind of automatic ash cleaning device for tail gas treatment. BACKGROUND

[0002] Incinerator tail gas cleaning system (also known as waste gas treatment system of incinerator) refers to the equipment and technical system for treating harmful gas and pollutants generated during waste incineration. During high-temperature incineration, toxic and harmful gases (such as dioxin, nitrogen oxides, sulfur oxides, particulate matter, etc.) are generated. If these gases are directly discharged without treatment, they will cause harm to the environment and human health. Therefore, the incinerator tail gas cleaning system plays a crucial role in the operation of the incinerator. The incinerator tail gas cleaning system includes pretreatment equipment (such as spray tower, spray drying tower). The spray tower or spray drying tower is usually used for pretreatment of flue gas discharged from the incinerator. It usually absorbs or converts harmful components in some gases through spraying, providing a better foundation for subsequent cleaning. Through efficient cleaning system, particulate matter, toxic and harmful gases (such as nitrogen oxides, sulfur oxides, dioxin, etc.) in flue gas can be effectively removed, reducing environmental pollution.

[0003] However, the existing equipment often encounters the following problems during use:

[0004] During the tail gas treatment process of the incinerator, atomizing nozzles are used to cool the smoke dust to make it settle. However, the condensate formed by the contact between part of the smoke dust and water vapor will accumulate on the inner wall of the condensation cavity, causing corrosive substances to come into contact with the equipment for a long time, corroding the inner wall of the condenser, affecting the normal operation of the equipment, and reducing the condensation efficiency. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide an automatic ash cleaning device for tail gas treatment to effectively solve the problem mentioned in the background art that during the tail gas treatment process of the incinerator, atomizing nozzles are used to cool the smoke dust to make it settle. However, the condensate formed by the contact between part of the smoke dust and water vapor will accumulate on the inner wall of the condensation cavity, causing corrosive substances to come into contact with the equipment for a long time, corroding the inner wall of the condenser, affecting the normal operation of the equipment, and reducing the condensation efficiency. The design of the utility model drives the output end of the motor to rotate the driving gear, which drives the meshing gear disc on one side to rotate. The inner disc wall of the meshing gear disc rotates in the condensation cavity, driving the scraper fixed on the inner disc wall. The scraper is attached to the condensation cavity, and the rotating scraper will scrape off the condensed smoke dust attached to the condensation cavity. The accumulated dust and corrosive substances on the inner wall of the condensation cavity are removed regularly to prevent these substances from accumulating for a long time.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0007] An automatic ash cleaning device for tail gas treatment, comprising:

[0008] A cooler;

[0009] A condensing cavity provided in the inner wall of the condenser;

[0010] An atomizing spray pipe, the top of the condensing cavity is provided with an atomizing spray pipe;

[0011] A driving mechanism, the driving mechanism is installed at the bottom of the cooler, the driving mechanism comprises a driving motor, a driving gear and an engaging gear plate, the output end of the driving motor is fixedly connected with the shaft of the driving gear, the engaging gear plate is clamped on the cavity wall of the condensing cavity, and the driving gear is engaged with the outer teeth of the engaging gear plate;

[0012] A scraper, the inner disc wall of the engaging gear plate extends into the condensing cavity, and at least one scraper is fixed on the inner wall of the engaging gear plate;

[0013] Support bearings, the support bearings are divided into upper and lower bearings, and the support bearings are respectively fixed in parallel in the condensing cavity, the rotating inner disc of the engaging gear plate is fixedly connected with the support bearings, and the rotating inner disc is used for supporting the rotation of the engaging gear plate;

[0014] A sealing structure, the sealing structure is arranged at the connection between the engaging gear plate and the condensing cavity.

[0015] The sealing structure comprises:

[0016] A meandering port, the meandering port is arranged at the connection between the engaging gear plate and the condensing cavity, and forms a labyrinth seal;

[0017] Double-layer pressing sheets, the double-layer pressing sheets are wrapped around the outer periphery of the engaging gear plate, and the engaging gear plate is located between the double-layer pressing sheets;

[0018] A baffle, the baffle is annular, and the baffle is connected with the side wheel surface outer periphery of the double-layer pressing sheets;

[0019] A flange ring, the flange ring is arranged at the joint between the double-layer pressing sheets and the baffle.

[0020] The support bearings are corrosion-resistant ceramic bearings, and the lower bearing of the support bearings is close to the ash discharge port of the condensing cavity.

[0021] The scraper is an arc-shaped stainless steel plate, and the inner side surface thereof is adapted to the curvature of the inner wall of the condensing cavity.

[0022] The meandering port is composed of the protrusions of the outer edge of the engaging gear plate and the grooves of the inner wall of the condensing cavity, and at least two winding air gaps are formed.

[0023] The flange ring is a graphite winding gasket.

[0024] The scraper is attached to the inner wall of the condensing cavity.

[0025] Compared with the prior art, the utility model discloses the design through the scraper dust cleaning mechanism, the output of drive motor rotates and drives the drive gear, and the drive gear rotates and drives the meshing gear disc on one side, and the inner disc wall of the meshing gear disc rotates in the condensing cavity, drives the scraper fixed on the inner disc wall, and the scraper is attached to the condensing cavity, and the rotating scraper will scrape the condensed smoke dust attached to the condensing cavity, and the dust and corrosive material on the inner wall of the condensing cavity are removed regularly, prevent these materials from long -term accumulation, avoid the corrosion damage of equipment, thereby keep the long -term stable operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application together with the written description thereof and do not limit the present application.

[0027] Figure 1 It is the whole outline schematic diagram of the utility model.

[0028] Figure 2 It is the local structure schematic diagram of the utility model.

[0029] Figure 3 It is the section view of the utility model.

[0030] Figure 4 It is Figure 3 The enlarged view of A.

[0031] Marked number in the figure: 1, cooler;2, condensing cavity;3, atomization spray pipe;4, drive mechanism;41, drive motor;42, drive gear;43, meshing gear disc;5, scraper;6, support bearing;7, sealing structure;71, back-shaped port;72, double-layer pressing sheet;73, baffle;74, flange ring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the utility model, it is still necessary to point out that, unless there is definite stipulation and limitation, the terms "arrange", "arrange", "connect", "connect" should be understood in broad sense, for example, it can be fixed connection, also can be dismounting connection, or integrally connected;It can be mechanical connection, also can be electrical connection;It can be directly connected, also can be indirectly connected through intermediate medium, it can be the communication inside two elements.For the ordinary skilled in the art, according to the specific circumstances, the specific meaning of the above-mentioned terms in the utility model is understood.

[0034] As Figures 1-4 The utility model provides an automatic dust cleaning device for tail gas treatment, automatic dust cleaning device for tail gas treatment, including cooler 1, condensing cavity 2, atomization spray pipe 3, drive mechanism 4, drive motor 41, drive gear 42, meshing tooth disc 43, scraper 5, support bearing 6 and sealing structure 7.

[0035] Condensing cavity 2 is set up in the inner wall of condenser, condensing cavity 2 is set up in the inner wall of condenser, mainly for collecting and condensing water vapor and particulate matter in flue gas, ensure that flue gas forms liquid or solid material after condensation to facilitate processing. Atomization spray pipe 3 passes through the top of condensing cavity 2, plays the role of atomization spray, evenly sprays water or other treatment agent on the smoke dust, helps the smoke dust to settle in the inner wall of condensing cavity 2, avoids the smoke dust to be discharged through the airflow.

[0036] In the utility model, the top of condensing cavity 2 is provided with atomization spray pipe 3, drive mechanism 4 is installed at the bottom of cooler 1, drive mechanism 4 includes drive motor 41, drive gear 42 and meshing tooth disc 43, the output end of drive motor 41 is fixedly connected with the axle of drive gear 42, meshing tooth disc 43 is clamped on the cavity wall of condensing cavity 2, and the outer teeth of drive gear 42 and meshing tooth disc 43 are engaged;Drive motor 41 rotates drive gear 42 through the output end, and provides power. The transmission effect of drive gear 42 is to transmit power to meshing tooth disc 43, and then drive scraper 5 to remove the dust.

[0037] In the utility model, the inner disc wall of meshing tooth disc 43 extends into the inside of condensing cavity 2, at least one scraper 5 is fixed to the inner wall of meshing tooth disc 43, the scraper 5 is arc stainless steel plate, and the inner side surface thereof is matched with the curvature of the inner wall of condensing cavity 2;The scraper 5 is arc stainless steel plate, and the scraper 5 is the core component for cleaning the dust, which is designed as arc stainless steel plate to ensure that the inner side surface thereof can be matched with the curvature of the inner wall of condensing cavity 2, so that the dust is scraped off to the maximum extent.

[0038] The utility model discloses, the scraping plate 5 side surface is adapted to the curvature of condensing cavity 2 inner wall, and the scraping plate 5 is pasted in condensing cavity 2 inner wall, and the support bearing 6 is divided into two groups of bearings, and the support bearing 6 is fixed in condensing cavity 2 respectively, and the meshing tooth disc 43 is fixedly connected with the rotation inner disc of support bearing 6, is used for supporting the rotation of meshing tooth disc 43, and the support bearing 6 is corrosion -resistant ceramic bearing, and the lower bearing of support bearing 6 is close to the ash outlet of condensing cavity 2, and the sealing structure 7 is set up in the joint of meshing tooth disc and condensing cavity 2.The design of meshing tooth disc 43 makes it can be contacted with condensing cavity 2 inner wall, and drives the scraping plate 5 rotation cleaning deposited smoke dust.

[0039] The utility model discloses, the rotation of meshing tooth disc 43 is realized through the meshing of meshing gear and its outer gear, and the stability of transmission is ensured.Support bearing 6 is used for supporting the rotation of meshing tooth disc 43, guarantees the stable rotation of meshing tooth disc 43, avoids the excessive friction or unbalance when running.Using corrosion -resistant ceramic bearing is because condensing cavity 2 can be exposed in the environment containing corrosive substance for a long time, and ceramic material has good corrosion resistance.

[0040] The utility model discloses, for preventing leakage, design sealing structure 7, include: backshaped mouth 71 is located in the joint of meshing tooth disc 43 and condensing cavity 2, forms the labyrinth seal;Backshaped mouth 71 is by the staggered inlay of the projection of meshing tooth disc 43 outer edge and the recess of condensing cavity 2 inner wall, and backshaped mouth 71 utilizes the labyrinth sealing structure 7, can effectively prevent smoke dust leakage.The smoke dust is difficult to leak through the joint through the multiple circuit air gap of backshaped mouth 71, and the sealing property inside condensing cavity 2 is ensured.Form at least two circuit air gaps, and double -layered tablet 72 is covered in the outer periphery of meshing tooth disc 43, further strengthens the sealing effect, avoids smoke dust from the joint and leaks out when meshing tooth disc 43 rotates.Meshing tooth disc 43 is located between double -layered tablet 72, and baffle 73 is annular, and baffle 73 is connected with the side wheel surface outer periphery of double -layered tablet 72, and flange ring 74 is set up in the joint of double -layered tablet 72 and baffle 73, and flange ring 74 is graphite winding gasket.

[0041] It needs to be explained that the automatic ash removal device for tail gas treatment is designed, when using, if the atomizing spray pipe 3 carries the smoke dust settlement to make it adhere to the chamber inner wall of the cooler 1, the driving motor 41 is started at this moment, the output end of the driving motor 41 rotates and drives the driving gear 42, the driving gear 42 rotates and drives the meshing gear disc 43 on one side, the inner disc wall of the meshing gear disc 43 rotates in the condensation cavity 2, drives the scraper 5 fixed on the inner disc wall, the scraper 5 is attached to the condensation cavity 2, the rotating scraper 5 will scrape the condensation smoke dust attached to the condensation cavity 2, to prevent the condensation smoke dust from corroding the condensation cavity 2. The upper and lower two groups of bearings will assist the meshing gear disc 43 to rotate in the rotating process. In order to prevent smoke dust leakage, the backshaped mouth 71 arranged at the connecting place of the condensation cavity 2 and the meshing gear disc 43 in the rotating process of the meshing gear disc 43 will make the smoke dust not easy to circulate, the baffle 73 on the side wheel surface of the double-layer pressing sheet 72 supporting the meshing gear disc 43 will be blocked twice, the flange ring 74 is arranged at the joint between the baffle 73 and the outer periphery of the double-layer pressing sheet 72, and the three times of blocking are sealed.

[0042] Although the embodiments of the utility model have been shown and described, for those skilled in the art, it is understood that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. An automatic dust removal device for exhaust gas treatment, characterized in that, The utility model relates to a condenser, comprising: a cooler (1); a condensing cavity (2) formed in the inner wall of the condenser; an atomizing spray pipe (3) passing through the top of the condensing cavity (2); a driving mechanism (4) installed at the bottom of the cooler (1), comprising a driving motor (41), a driving gear (42), and a meshing gear plate (43), the output end of the driving motor (41) being fixedly connected with the axle of the driving gear (42), the meshing gear plate (43) being clamped to the cavity wall of the condensing cavity (2), the driving gear (42) being engaged with the external teeth of the meshing gear plate (43); a scraper (5) fixed to the inner wall of the meshing gear plate (43) and extending into the condensing cavity (2); a support bearing (6) divided into two groups of bearings, the support bearings (6) being fixed in parallel to the condensing cavity (2), the rotating inner disc of the meshing gear plate (43) being fixedly connected with the rotating inner disc of the support bearings (6) for supporting the rotation of the meshing gear plate (43); a sealing structure (7) arranged at the joint of the meshing gear plate and the condensing cavity (2).

2. The automatic ash cleaning device for exhaust gas treatment according to claim 1, characterized by The sealing structure (7) comprises: a meandering opening (71) arranged at the joint of the meshing gear plate (43) and the condensing cavity (2) to form a labyrinth seal; a double-layer pressing sheet (72) covering the outer periphery of the meshing gear plate (43), the meshing gear plate (43) being located between the double-layer pressing sheets (72); a baffle (73) in the shape of a ring, the baffle (73) being connected with the side wheel surface of the double-layer pressing sheet (72); a flange ring (74) arranged at the joint of the double-layer pressing sheet (72) and the baffle (73).

3. The automatic ash cleaning device for exhaust gas treatment according to claim 1, characterized by The support bearings (6) are corrosion-resistant ceramic bearings, and the lower bearings of the support bearings (6) are close to the ash discharge port of the condensing cavity (2).

4. The automatic ash cleaning device for exhaust gas treatment according to claim 1, characterized by The scraper (5) is an arc-shaped stainless steel plate, and the inner side surface thereof is adapted to the curvature of the inner wall of the condensing cavity (2).

5. The automatic ash cleaning device for exhaust gas treatment according to claim 2, characterized by The meandering opening (71) is composed of the protrusions on the outer edge of the meshing gear plate (43) and the grooves on the inner wall of the condensing cavity (2) and is staggered and embedded, forming at least two winding air gaps.

6. The automatic ash cleaning device for exhaust gas treatment according to claim 2, characterized by The flange ring (74) is a graphite wound gasket.

7. The automatic ash cleaning device for exhaust gas treatment according to claim 1, characterized by The scraper (5) is attached to the inner wall of the condensing cavity (2).

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