Multifunctional waste liquid incineration treatment device

Abstract

The utility model provides a multifunctional waste liquid incineration treatment device. A main furnace is connected with a high-temperature cyclone separator; the high-temperature cyclone separator is connected with the second-section furnace; the second-section furnace is connected with the secondary combustion chamber; the secondary combustion chamber is connected with the waste heat boiler; the waste heat boiler is connected with the quench tower; the quench tower is connected with the bag-type dust collector; the bag-type dust collector is connected with the deacidification absorption tower; the deacidification absorption tower is connected with the flue gas heater; the flue gas heater is connected with the denitration device; the denitration device is connected with the induced draft fan; and the induced draft fan is connected with a chimney. By the adoption of the technical scheme, waste liquid is treated separately, different waste liquid is incinerated through the main furnace and the second-section furnace to obtain inorganic salt by-products with different components, the melting point of inorganic salt is high, and the waste liquid not prone to caking in the incineration process enters the main furnace to be incinerated through open fire of the combustor. The melting point of inorganic salt is low, and waste liquid which is prone to caking in the incineration process enters the second-section furnace and is incinerated through high-temperature flue gas.

Description

Technical Field

[0001] The utility model relates to the field of waste liquid treatment, in particular to a multifunctional waste liquid incineration treatment device. Background Art

[0002] Incineration of wastewater is an effective pollution control method commonly used in chemical plants. It is particularly suitable for high-concentration, non-biodegradable, salty, or halogen-containing organic wastewater. High temperatures are used to convert organic matter in the wastewater into harmless substances such as water and carbon dioxide. Currently, typical incineration processes use energy sources such as natural gas and hydrogen to provide heat, and only incinerate a single type of wastewater, converting it into a solid waste or byproduct. This method is economically expensive and consumes a lot of energy during the incineration process. Although waste heat boilers and other devices can be used to utilize the heat, a large amount of heat is still wasted. Utility Model Content

[0003] The main purpose of this utility model is to provide a multifunctional waste liquid incineration treatment device and process to solve the problem of heat waste, and use heat to simultaneously treat low-concentration or other waste liquids, incinerate and purify different waste liquids into a variety of inorganic salt by-products, and realize waste liquid resource recovery.

[0004] The technical solution adopted by the utility model is: a multifunctional waste liquid incineration treatment device and process, which has different waste liquid storage tanks 1# and 2#; the 1# concentrated liquid storage tank is connected to the 1# concentrated liquid feed pump; the 1# concentrated liquid feed pump B1 / 2 is connected to the main furnace through the atomizing spray gun 1; the 2# concentrated liquid storage tank is connected to the 2# concentrated liquid feed pump; the 2# concentrated liquid feed pump B3 / 4 is connected to the second stage furnace through the atomizing spray gun 2; the main furnace is connected to the high-temperature cyclone separator; the high-temperature cyclone separator is connected to the second stage furnace; the second The section furnace is connected to the secondary combustion chamber; the secondary combustion chamber is connected to the waste heat boiler; the waste heat boiler is connected to the quenching tower; the quenching tower is connected to the bag filter; the bag filter is connected to the deacidification absorption tower; the deacidification absorption tower is connected to the flue gas heater; the flue gas heater is connected to the denitrification device; the denitrification device is connected to the induced draft fan; the induced draft fan is connected to the chimney; the main furnace is connected to the grate; the grate is connected to the coarse crusher; the coarse crusher and high-temperature cyclone separator are connected to the 1# discharge scraper; the 1# discharge scraper is connected to the fine crusher. The crusher is connected to the bucket elevator; the bucket elevator is connected to the No. 1 silo; the No. 1 silo is connected to the No. 1 automatic packaging machine; the second-stage furnace, waste heat boiler, quenching tower, and bag dust collector are respectively connected to the No. 2 discharge scraper; the No. 2 discharge scraper is connected to the No. 2 silo; the No. 2 silo is connected to the No. 2 automatic packaging machine; the burners (natural gas) R1-23 are evenly distributed in the main furnace, secondary combustion chamber, and flue gas heater; the main furnace blower is connected to the main furnace; the grate blower is connected to the grate ; External soft water enters the boiler soft water storage tank; the boiler soft water storage tank is connected to the boiler feed water pump; the boiler feed water pump is connected to the boiler drum; the boiler drum is connected to the waste heat boiler; the boiler drum is respectively connected to the steam cylinder and the blowdown expansion tank; the blowdown expansion tank is connected to the sewage heat exchanger; the clear water tank is respectively connected to the quenching water spray pump and the deacidification circulating liquid spray pump; the quenching water spray pump is connected to the quenching tower; the deacidification circulating liquid spray pump is connected to the deacidification absorption tower; the deacidification absorption tower is connected to the settling tank; the settling tank is connected to the neutralization tank;

[0005] The 1# concentrated liquid storage tank, 2# concentrated liquid storage tank, waste heat boiler, quench tower deacidification absorption tower, clear water tank settling tank and neutralization tank are all equipped with liquid level detection to form liquid level interlock control.

[0006] The main furnace, grate, high-temperature cyclone separator, second-stage furnace, secondary combustion chamber, waste heat boiler, quenching tower, bag dust collector, deacidification absorption tower, flue gas heater, denitrification device and chimney are all equipped with temperature detection, which form temperature interlock control with burner (natural gas) R1-23 respectively.

[0007] The main furnace, grate, high-temperature cyclone separator, second-stage furnace, secondary combustion chamber, waste heat boiler, quenching tower, bag dust collector, deacidification absorption tower, flue gas heater, denitrification device and chimney are all equipped with pressure detection, which forms a pressure interlock control with the induced draft fan frequency.

[0008] The waste heat boiler is equipped with a matching dosing device, a steam cylinder, a boiler sewage discharge system and an automatic soot blowing device.

[0009] In the preferred scheme, the waste liquids are treated separately. The different waste liquids are incinerated in the main furnace and the second-stage furnace respectively to obtain inorganic salt by-products of different components. The waste liquid with a high melting point of inorganic salt and not easy to agglomerate during the incineration process enters the main furnace and is incinerated by the open flame of the burner. The waste liquid with a low melting point of inorganic salt and easy to agglomerate during the incineration process enters the second-stage furnace and is incinerated by high-temperature flue gas.

[0010] Beneficial effects of the utility model:

[0011] The utility model provides a multifunctional waste liquid incineration treatment device. The main furnace and the second-stage furnace can operate simultaneously or independently. The two by-product inorganic salts are packaged separately, realizing waste liquid treatment and resource reuse, and realizing comprehensive utilization of energy consumption, which is of great significance to enterprises in reducing environmental risks and improving core competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a multifunctional waste liquid incineration treatment device.

[0013] In the figure, the main furnace 1, high-temperature cyclone separator 2, second-stage furnace 3, secondary combustion chamber 4, waste heat boiler 5, quenching tower 6, bag filter 7, deacidification absorption tower 8, flue gas heater 9, denitrification device 10, induced draft fan 11, chimney 12, 1# concentrate storage tank C1, 2# concentrate storage tank C2, compressed air buffer tank V, grate S1, coarse crusher S2, 1# discharge scraper S3, fine crusher S4, bucket elevator S5, 1# silo S6, 1# automatic packaging machine S7, 2# discharge scraper S8, 2 # Silo S9, 2# automatic packaging machine S10, atomizing spray gun 1 W1, atomizing spray gun 2 W2, blower F1-4, boiler soft water storage tank G1, boiler steam drum G2, steam distribution cylinder G3, sewage expansion tank G4, sewage heat exchanger G5, 1# concentrated liquid feed pump B1 / 2, 2# concentrated liquid feed pump B3 / 4, boiler feed water pump B5 / 6, quenching water spray pump B7 / 8, deacidification circulating liquid spray pump B9 / 10, deacidification circulating liquid discharge pump B11 / 12, clear water tank X1, neutralization tank X2, sedimentation tank X3. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1

[0016] It includes different waste liquids from the front end entering the 1# concentrated liquid storage tank C1 and the 2# concentrated liquid storage tank C2 respectively;

[0017] The concentrated liquid storage tank C1 is connected to the 1# concentrated liquid feed pump B1 / 2;

[0018] 1# concentrated liquid feed pump B1 / 2 is connected to the main furnace 1 through the atomizing spray gun W1;

[0019] 2# concentrated liquid storage tank C2 is connected to 2# concentrated liquid feed pump B3 / 4;

[0020] 2# concentrated liquid feed pump B3 / 4 is connected to the second stage furnace 3 through the atomizing spray gun W2;

[0021] The main furnace 1 is connected to the high-temperature cyclone separator 2;

[0022] The high-temperature cyclone separator 2 is connected to the second-stage furnace 3;

[0023] The second stage furnace 3 is connected to the secondary combustion chamber 4;

[0024] The secondary combustion chamber 4 is connected to the waste heat boiler 5;

[0025] The waste heat boiler 5 is connected to the quench tower 6;

[0026] The quenching tower 6 is connected to the bag filter 7;

[0027] The bag filter 7 is connected to the deacidification absorption tower 8;

[0028] The deacidification absorption tower 8 is connected to the flue gas heater 9;

[0029] The flue gas heater 9 is connected to the denitrification device 10;

[0030] The denitrification device 10 is connected to the induced draft fan 11;

[0031] The induced draft fan 11 is connected to the chimney 12;

[0032] The main furnace 1 is connected to the grate S1;

[0033] The grate S1 is connected to the coarse crusher S2;

[0034] The coarse crusher S2 and the high-temperature cyclone separator 2 are connected to the 1# discharging scraper S3;

[0035] 1# discharging scraper S3 is connected to fine crusher S4;

[0036] The fine crusher S4 is connected to the bucket elevator S5;

[0037] Bucket elevator S5 is connected to 1# silo S6;

[0038] 1# silo S6 is connected to 1# automatic packaging machine S7;

[0039] The second stage furnace 3, waste heat boiler 5, quenching tower 6, and bag dust collector 7 are respectively connected to the 2# discharging scraper S8;

[0040] 2# discharging scraper S8 is connected to 2# silo S9;

[0041] 2# silo S9 is connected to 2# automatic packaging machine S10;

[0042] Burners (natural gas) R1-23 are evenly distributed in the main furnace 1, secondary combustion chamber 4, and flue gas heater 9;

[0043] The main furnace blower F1 / 2 is connected to the main furnace 1;

[0044] The grate blower F3 / 4 is connected to the grate S1;

[0045] External soft water enters the boiler soft water storage tank G1;

[0046] The boiler soft water storage tank G1 is connected to the boiler feed water pump B5 / 6;

[0047] Boiler feed water pump B5 / 6 is connected to boiler drum G2;

[0048] The boiler drum G2 is connected to the waste heat boiler 5;

[0049] The boiler drum G2 is connected to the steam cylinder G3 and the blowdown expansion tank G4 respectively;

[0050] Blowdown expansion tank G4 and waste heat exchanger G5;

[0051] The clear water tank X1 is connected to the quenching water spray pump B7 / 8 and the deacidification circulating liquid spray pump B9 / 10 respectively;

[0052] The quenching water spray pump B7 / 8 is connected to the quenching tower 6;

[0053] The deacidification circulating liquid spray pump B9 / 10 is connected to the deacidification absorption tower 8;

[0054] The deacidification absorption tower 8 is connected to the sedimentation tank X3;

[0055] The settling tank X3 is connected to the neutralization tank X2;

[0056] Example 2

[0057] As shown in the figure, the working principle of this embodiment is as follows:

[0058] During operation, different concentrated waste liquids from the front end enter the 1# concentrated liquid storage tank C1 and the 2# concentrated liquid storage tank C2 respectively. The concentrated waste liquid 1 in the 1# concentrated liquid storage tank C1 enters the main furnace 1 through the 1# concentrated liquid feed pump B1 / 2 and the atomizing spray gun W1, and is burned by the distributed burner (natural gas) in the main furnace 1. The solid slag after combustion falls on the grate S1 and is transported to the coarse crusher S2. During the transportation process, it is subjected to secondary combustion and conversion by the burner (natural gas) above the grate. The by-product 1 generated by the incineration is initially crushed by the coarse crusher S2 and then transported to the fine crusher S4 by the 1# discharge scraper S3 for secondary crushing. The high-temperature flue gas generated by the incineration is separated by the high-temperature cyclone separator 2, and the dust enters the 1# discharge scraper S3, and then is transported to the 1# silo S6 by the bucket elevator S5 and then enters the 1# automatic packaging machine S7 for product packaging to obtain the by-product salt 1.

[0059] The concentrated waste liquid 2 in the 2# concentrated liquid storage tank C2 is fed by the 2# concentrated liquid feed pump B3 / 4 through the atomizing spray gun 2 W2 and enters the secondary furnace 3. The high-temperature flue gas after passing through the high-temperature cyclone separator 2 is incinerated. The resulting flue gas passes through the secondary combustion chamber 4, where unburned harmful substances in the flue gas are burned and destroyed, while also preventing the formation of dioxins. The flue gas then enters the waste heat boiler 5 for waste heat recovery. The flue gas then enters the quench tower 6, bag filter 7, deacidification absorption tower 8, flue gas heater 9, and denitrification unit 10 for exhaust treatment. The flue gas is then discharged through the induced draft fan 11 into the chimney 12. The slag produced by the incineration and the dust collected by the waste heat boiler 5, quench tower 6, and bag filter 7 are transported to the 2# discharge scraper S8 and transported to the 2# silo S9. The by-product salt 2 is then packaged by the 2# automatic packaging machine S10.

[0060] In this example, the main furnace and the second-stage furnace can be operated simultaneously or separately during the whole process. The two by-product inorganic salts are packaged separately to realize waste liquid treatment and resource reuse, and realize comprehensive utilization of energy consumption.

[0061] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The embodiments and features therein may be arbitrarily combined unless they conflict. The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent alternatives to the technical features of the technical solutions described in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A multifunctional waste liquid incineration treatment device, characterized by: The main furnace (1) is connected to the high-temperature cyclone separator (2); the high-temperature cyclone separator (2) is connected to the second-stage furnace (3); the second-stage furnace (3) is connected to the secondary combustion chamber (4); the secondary combustion chamber (4) is connected to the waste heat boiler (5); the waste heat boiler (5) is connected to the quenching tower (6); the quenching tower (6) is connected to the bag filter (7); the bag filter (7) is connected to the deacidification absorption tower (8); the deacidification absorption tower (8) is connected to the flue gas heater (9); the flue gas heater (9) is connected to the denitration device (10); the denitration device (10) is connected to the induced draft fan (11); and the induced draft fan (11) is connected to the chimney (12).

2. The multifunctional waste liquid incineration treatment device according to claim 1, characterized in that: The waste liquid incineration treatment device also includes a 1# concentrated liquid storage tank (C1) and a 2# concentrated liquid storage tank (C2); the 1# concentrated liquid storage tank (C1) is connected to the 1# concentrated liquid feed pump (B1 / 2); the 1# concentrated liquid feed pump (B1 / 2) is connected to the main furnace (1) via the first atomizing spray gun (W1); the 2# concentrated liquid storage tank (C2) is connected to the 2# concentrated liquid feed pump (B3 / 4); the 2# concentrated liquid feed pump (B3 / 4) is connected to the second-stage furnace (3) via the second atomizing spray gun (W2).

3. The multifunctional waste liquid incineration treatment device according to claim 2, characterized in that: The main furnace (1) is also connected to the grate (S1); the grate (S1) is connected to the coarse crusher (S2); the coarse crusher (S2) and the high-temperature cyclone separator (2) are connected to the 1# discharging scraper (S3); the 1# discharging scraper (S3) is connected to the fine crusher (S4); the fine crusher (S4) is connected to the bucket elevator (S5); the bucket elevator (S5) is connected to the 1# silo (S6); and the 1# silo (S6) is connected to the 1# automatic packaging machine (S7).

4. The multifunctional waste liquid incineration treatment device according to claim 3, characterized in that: The second-stage furnace (3), the waste heat boiler (5), the quenching tower (6), and the bag dust collector (7) are also respectively connected to the 2# discharging scraper (S8); the 2# discharging scraper (S8) is connected to the 2# silo (S9); and the 2# silo (S9) is connected to the 2# automatic packaging machine (S10).

5. The multifunctional waste liquid incineration treatment device according to claim 4, characterized in that: Burners are distributed in the main furnace (1), the secondary combustion chamber (4), and the flue gas heater (9).

6. The multifunctional waste liquid incineration treatment device according to claim 5, characterized in that: The device further comprises a boiler soft water storage tank (G1); the boiler soft water storage tank (G1) is connected to a boiler feed water pump (B5 / 6); the boiler feed water pump (B5 / 6) is connected to a boiler steam drum (G2); the boiler steam drum (G2) is connected to a waste heat boiler (5); the boiler steam drum (G2) is respectively connected to a steam cylinder (G3) and a blowdown expansion tank (G4); and the blowdown expansion tank (G4) is connected to a waste heat exchanger (G5).

7. The multifunctional waste liquid incineration treatment device according to claim 6, characterized in that: The device is also provided with a clear water tank (X1); the clear water tank (X1) is connected to a quenching water spray pump (B7 / 8) and a deacidification circulating liquid spray pump (B9 / 10) respectively; The quenching water spray pump (B7 / 8) is connected to the quenching tower (6); The deacidification circulating liquid spray pump (B9 / 10) is connected to the deacidification absorption tower (8); The deacidification absorption tower (8) is connected to the sedimentation tank (X3); The sedimentation tank (X3) is connected to the neutralization tank (X2).

8. The multifunctional waste liquid incineration treatment device according to claim 3, characterized in that: The main furnace (1) is also provided with a main furnace blower (F1 / 2); the grate (S1) is also connected to the grate blower (F3 / 4).

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