A desulfurization absorption tower with a forced cyclone separation device

Abstract

The present invention discloses a desulfurization absorption tower with a forced cyclone separation device. A cyclone separation chamber is provided above the spray layer in the tower barrel of the absorption tower. The cyclone separation chamber has a plurality of cyclone separators. The cyclone separator has a cyclone wheel, and the cyclone wheel is connected to the transmission motor through a transmission mechanism. The transmission mechanism includes a transmission rack, a forward transmission flywheel, a reverse transmission flywheel and a transmission shaft. The forward transmission flywheel and the reverse transmission flywheel are installed on the transmission shaft, and the forward transmission flywheel and the reverse transmission flywheel are both meshed with the transmission rack. A forced cyclone separation device is provided above the spray layer of the absorption tower to remove water and gypsum carried in the desulfurization wet flue gas. The forced cyclone separation device is divided into two parts, the upper part is a sealed transmission bin, and the lower part is a cyclone separator, which not only improves the initiative of separation, but also ensures stability.

Description

Technical Field

[0001] The invention relates to a desulfurization absorption tower with a forced cyclone separation device, belonging to the technical field of desulfurization absorption tower structures. Background Art

[0002] The desulfurization tower is a tower-type equipment for desulfurization of industrial waste gas. The desulfurization tower was originally built with granite and was most widely used. It uses the principle of water film desulfurization and dust removal, also known as granite water film desulfurization dust collector, or granite water film desulfurization dust collector. The advantage is that it is easy to maintain, and different dust removal agents can be prepared to achieve the effects of dust removal and desulfurization (denitrification) at the same time. With the development of FRP technology, desulfurization towers have gradually been made of FRP. Compared with granite desulfurization towers, FRP desulfurization towers have low cost, easy processing, no rust and no rot, and light weight, so they have become the development trend of desulfurization towers in the future. In addition, 316L stainless steel has three advantages of corrosion resistance, high temperature resistance, and wear resistance, which is also one of the important trends in the development of desulfurization towers. After years of improvement, it has developed into various types of desulfurization towers such as Venturi type, swirl plate type, swirl column type, float type, sieve plate type, pneumatic emulsification type, etc. The equipment technology is becoming more and more mature, each with its own advantages and disadvantages. Enterprises can choose different types according to their own needs.

[0003] Currently, the demisting principle of desulfurization demisters mostly uses gravity and inertia. There are also cyclone demisters on the market, but their principle also belongs to the passive cyclone separation principle. The equipment size and investment are large, and the overall demisting effect is not ideal. Summary of the invention

[0004] The object of the present invention is to provide a desulfurization absorption tower with a forced cyclone separation device. A forced cyclone separation device is arranged above the spray layer of the absorption tower to remove water and gypsum carried in the desulfurization wet flue gas. The forced cyclone separation device is divided into two parts, the upper part is a sealed transmission bin, and the lower part is a cyclone separator, which not only improves the initiative of separation, but also ensures the stability of equipment operation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A desulfurization absorption tower with a forced cyclone separation device, a cyclone separation chamber is provided above the spray layer in the tower tube of the absorption tower, the cyclone separator has a plurality of cyclone separation chambers, a cyclone wheel is provided in the cyclone separation chamber, and the cyclone wheel is connected to the transmission motor through a transmission mechanism; the transmission mechanism includes a transmission rack, a forward transmission flywheel, a reverse transmission flywheel and a transmission shaft, the forward transmission flywheel and the reverse transmission flywheel are installed on the transmission shaft, the forward transmission flywheel is meshed with the transmission rack; the reverse transmission flywheel is meshed with the transmission rack, the transmission rack is installed on the transmission mechanism, the transmission mechanism is connected to the transmission motor, and the cyclone wheel is installed on the transmission shaft.

[0007] In the aforementioned desulfurization absorption tower with a forced cyclone separation device, a sealed transmission chamber is provided above the cyclone separation chamber, the cross section of the sealed transmission chamber is streamlined, and the forward drive flywheel and the reverse drive flywheel are both located in the sealed transmission chamber.

[0008] In the aforementioned desulfurization absorption tower with a forced cyclone separation device, the main gear has a through hole at the axial center position, the transmission shaft has a through hole at a position corresponding to the through hole, and the transmission shaft is provided with a flushing nozzle; a flushing water pipe is provided in the sealed transmission compartment, and the flushing nozzle is connected to the flushing water pipe through a flushing water branch pipe, and the flushing water branch pipe passes through the through hole and the through hole.

[0009] In the aforementioned desulfurization absorption tower with a forced cyclone separation device, the forward drive flywheel includes a gear plate and a ratchet, the gear plate is meshed with the transmission rack, the lower part of the gear plate is provided with a fixed plate, the fixed plate is provided with a pawl, the ratchet is fixedly mounted on the transmission shaft, the pawl and the ratchet cooperate; the upper part of the gear plate is provided with a mounting cylinder, the mounting cylinder is fixed on the inner ring of the bearing, the bearing is mounted in the fixed cylinder, and the fixed cylinder is fixed in the sealed transmission bin.

[0010] Compared with the prior art, the present invention arranges a forced cyclone separation device above the spray layer of the absorption tower to remove water and gypsum carried in the desulfurized wet flue gas. The forced cyclone separation device is divided into two parts, the upper part is a sealed transmission bin, and the lower part is a cyclone separator, which not only improves the initiative of separation, but also ensures the stability of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0012] Figure 2 It is a schematic diagram of a cyclone wheel without dots;

[0013] Figure 3 It is a structural schematic diagram of a sealed transmission compartment;

[0014] Figure 4 It is a schematic diagram of the internal structure of the sealed transmission compartment;

[0015] Figure 5 It is a cross-sectional view of the interior of the sealed transmission compartment;

[0016] Figure 6 It is a structural schematic diagram of an embodiment of a forward drive flywheel.

[0017] Figure markings: 1-cyclone separator, 2-tower, 3-cyclone wheel, 4-cyclone separation chamber, 5-flushing nozzle, 6-transmission motor, 7-transmission mechanism, 8-flushing jellyfish tube, 9-flushing water branch pipe, 10-forward transmission flywheel, 11-reverse transmission flywheel, 12-transmission rack, 13-sealed transmission bin, 14-transmission shaft, 15-fixed plate, 16-gear plate, 17-pawl, 18-ratchet.

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0019] Embodiment 1 of the present invention: A desulfurization absorption tower with a forced cyclone separation device, a cyclone separator 1 is provided above the spray layer in the tower 2 of the absorption tower, the cyclone separator 1 has a plurality of cyclone separation chambers 4, the cyclone separation chambers 4 have a cyclone wheel 3, the cyclone wheel 3 is connected to the transmission motor 6 through a transmission mechanism 7; the transmission mechanism 7 includes a transmission rack 12, a forward transmission flywheel 10, a reverse transmission flywheel 11 and a transmission shaft 14, the forward transmission flywheel 10 and the reverse transmission flywheel 11 are installed on the transmission shaft 14, the forward transmission flywheel 10 is meshed with the transmission rack 12; the reverse transmission flywheel 11 is meshed with the transmission rack 12, the transmission rack 12 is installed on the transmission mechanism 7, the transmission mechanism 7 is connected to the transmission motor 6, and the cyclone wheel 3 is installed on the transmission shaft 14. A sealed transmission chamber 13 is provided above the cyclone separation chamber 4 . The cross section of the sealed transmission chamber 13 is streamlined. Both the forward transmission flywheel 10 and the reverse transmission flywheel 11 are located in the sealed transmission chamber 13 .

[0020] The forward drive flywheel 10 includes a gear plate 16 and a ratchet 18, the gear plate 16 is meshed with the transmission rack 12, the lower part of the gear plate 16 has a fixed plate 15, the fixed plate 15 has a pawl 17, the ratchet 18 is fixedly mounted on the transmission shaft 14, the pawl 17 and the ratchet 18 cooperate; the upper part of the gear plate 16 has a mounting cylinder, the mounting cylinder is fixed on the inner ring of the bearing, the bearing is mounted in the fixed cylinder, and the fixed cylinder is fixed in the sealed transmission chamber 13.

[0021] Embodiment 2: A desulfurization absorption tower with a forced cyclone separation device, wherein a cyclone separation chamber 4 is provided above the spray layer in the tower tube 2 of the absorption tower, wherein the cyclone separation chamber 4 has a plurality of cyclone separators 1, wherein the cyclone separators 1 have cyclone wheels 3, wherein the cyclone wheels 3 are connected to the transmission motor 6 through a transmission mechanism 7; wherein the transmission mechanism 7 comprises a transmission rack 12, a forward transmission flywheel 10, a reverse transmission flywheel 11 and a transmission shaft 14, wherein the forward transmission flywheel 10 and the reverse transmission flywheel 11 are mounted on the transmission shaft 14, wherein the forward transmission flywheel 10 is meshed with the transmission rack 12; wherein the reverse transmission flywheel 11 is meshed with the transmission rack 12, wherein the transmission rack 12 is mounted on the transmission mechanism 7, wherein the transmission mechanism 7 is connected to the transmission motor 6, wherein the cyclone wheel 3 is mounted on the transmission shaft 14. A sealed transmission chamber 13 is provided above the cyclone separation chamber 4 . The cross section of the sealed transmission chamber 13 is streamlined. Both the forward transmission flywheel 10 and the reverse transmission flywheel 11 are located in the sealed transmission chamber 13 .

[0022] The forward drive flywheel 10 includes a gear plate 16 and a ratchet 18, the gear plate 16 is meshed with the transmission rack 12, the lower part of the gear plate 16 has a fixed plate 15, the fixed plate 15 has a pawl 17, the ratchet 18 is fixedly mounted on the transmission shaft 14, the pawl 17 and the ratchet 18 cooperate; the upper part of the gear plate 16 has a mounting cylinder, the mounting cylinder is fixed on the inner ring of the bearing, the bearing is mounted in the fixed cylinder, and the fixed cylinder is fixed in the sealed transmission chamber 13.

[0023] The main gear 10 has a through hole at the axial position, the transmission shaft 14 has a through hole at a position corresponding to the through hole, and the transmission shaft 14 is provided with a flushing nozzle 5; a flushing water pipe 8 is provided in the sealed transmission compartment 13, and the flushing nozzle 5 is connected to the flushing water pipe 8 through a flushing water branch pipe 9, and the flushing water branch pipe 9 passes through the through hole and the through hole.

[0024] Working principle of an embodiment of the present invention: The sealed transmission chamber 13 is evenly arranged in the cyclone separator 4 along the tower 2 and the cyclone separation chamber 1 (see Figure 3 ), forming a grate-type cavity. The sealed transmission chamber 13 is a closed cavity (air), in which a transmission mechanism 7 (connected to the transmission motor 6 outside the tower) and a flushing water system are arranged.

[0025] The cyclone separator 1 is provided with a plurality of cyclone separation chambers, each of which is provided with a flushing nozzle 5 and a cyclone wheel 3. Each cyclone wheel 3 is connected to the main gear 10 through a cyclone wheel transmission shaft 14. The cyclone wheel transmission shaft 14 is a hollow shaft, and a flushing water branch pipe 9 is provided inside. A flushing nozzle 5 is provided on the cyclone wheel transmission shaft 14, and the flushing nozzle 5 is connected to the flushing water branch pipe 9 on the cyclone wheel transmission shaft 14.

[0026] Power system of the forced cyclone separation device: The transmission motor 6 installed outside the tower drives the transmission mechanism 7 and the transmission rack 12 to make a reciprocating motion. The transmission rack 12 drives the forward transmission flywheel 10 and the reverse transmission flywheel 11, thereby driving the cyclone wheel transmission shaft 14 to rotate, and further driving the cyclone wheel 3 installed on the cyclone wheel transmission shaft 14 to rotate. When the transmission rack 12 moves backward, the forward transmission flywheel 10 makes a forward rotational motion (output), thereby driving the cyclone wheel 3 to rotate forward, and at this time the reverse transmission flywheel 11 follows the transmission rack 12 to move in the reverse direction (no output); when the transmission rack 12 moves forward, the reverse transmission flywheel 10 makes a forward rotational motion (output), thereby driving the cyclone wheel 3 to rotate forward, and at this time the forward transmission flywheel 11 follows the transmission rack 12 to move in the reverse direction (no output), so as to ensure that the cyclone wheel 3 can complete a continuous unidirectional rotation action.

[0027] Flushing water system of forced cyclone separation device: The external flushing water pipe 8 of the absorption tower is arranged in the sealed transmission chamber 13 along the direction of each cyclone separation chamber 4, and a flushing water branch pipe 9 is led out from the flushing water pipe 8 at the top of each cyclone separation chamber 4. The flushing water branch pipe 9 passes through the hollow core of the forward transmission flywheel 10, the reverse transmission flywheel 11 and the cyclone wheel transmission shaft 14, and is connected to the flushing nozzle 5 arranged on the cyclone wheel transmission shaft 14, so as to spray and flush each cyclone separation chamber 4. The flushing nozzle 5 can be installed on the transmission shaft 14 through a bearing, such as: a mounting hole is set on the transmission shaft 14, and then a bearing is fixed in the mounting hole, and then the flushing nozzle 5 is fixed on the inner sleeve of the bearing. During the rotation of the transmission shaft 14, the flushing nozzle 5 rotates with the transmission shaft 14, and the relative rotation between the inner sleeve and the outer sleeve of the bearing offsets the rotational torque of the connecting pipeline.

[0028] The wet flue gas passes through the forced cyclone separation device from bottom to top, and after being acted upon by the rotating cyclone wheel 3, it rotates in each cyclone separation chamber 4, and the water and gypsum in the wet flue gas are thrown to the inner wall of the cyclone separation chamber 4 by centrifugal force, and fall into the absorption tower by gravity. When there is a lot of gypsum attached to the inner wall of the cyclone separation chamber 4, it is washed with high-pressure water spray through the washing nozzle 5 arranged on the transmission shaft of the cyclone wheel 3.

Claims

1. A desulfurization absorption tower with a forced cyclone separation device, characterized in that: A cyclone separator (1) is provided above the spray layer in the tower barrel (2) of the absorption tower. The cyclone separator (1) has a plurality of cyclone separation chambers (4). A cyclone wheel (3) is provided in the cyclone separation chambers (4). The cyclone wheel (3) is connected to a transmission motor (6) through a transmission mechanism (7). The transmission mechanism (7) comprises a transmission rack (12), a forward transmission flywheel (10), a reverse transmission flywheel (11) and a transmission shaft (14). The forward transmission flywheel (10) and the reverse transmission flywheel (11) are mounted on the transmission shaft (14). The forward transmission flywheel (10) and the transmission rack (12) are meshed. The reverse transmission flywheel (11) and the transmission rack (12) are meshed. The transmission rack (12) is mounted on the transmission mechanism (7). The transmission mechanism (7) and the transmission motor (6) are connected to the transmission mechanism (7). The cyclone separator (1) is connected to a motor (6), and the cyclone wheel (3) is mounted on a transmission shaft (14); a sealed transmission chamber (13) is provided above the cyclone separator (1), the cross section of the sealed transmission chamber (13) is streamlined, and the forward transmission flywheel (10) and the reverse transmission flywheel (11) are both located in the sealed transmission chamber (13); a through hole is provided at the axial center position of the forward transmission flywheel (10) and the reverse transmission flywheel (11), a through hole is provided at a position on the transmission shaft (14) corresponding to the through hole, and a flushing nozzle (5) is provided on the transmission shaft (14); a flushing jellyfish tube (8) is provided in the sealed transmission chamber (13), and the flushing nozzle (5) is connected to the flushing jellyfish tube (8) through a flushing water branch pipe (9), and the flushing water branch pipe (9) passes through the through hole and the through hole.

2. A desulfurization absorption tower with a forced cyclone separation device according to claim 1, characterized in that: The forward transmission flywheel (10) comprises a gear plate (16) and a ratchet (18), wherein the gear plate (16) is meshed with the transmission rack (12), the lower part of the gear plate (16) comprises a fixed plate (15), the fixed plate (15) comprises a ratchet (17), the ratchet (18) is fixedly mounted on a transmission shaft (14), the ratchet (17) and the ratchet (18) cooperate; the upper part of the gear plate (16) comprises a mounting cylinder, the mounting cylinder is fixed on the inner ring of a bearing, the bearing is mounted in the fixing cylinder, and the fixing cylinder is fixed in a sealed transmission chamber (13).

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