Novel scattered and discharged gas collecting device of shale oil refining device

Abstract

The utility model discloses a novel scattered and discharged gas collecting device of a shale oil refining device, which belongs to the technical field of oil shale oil refining waste gas emission and comprises a dry distillation furnace body, a combustion fan, a heat accumulating type heating furnace, a desulfurizing tower, a desulfurizing circulating pump and a chimney. According to the device disclosed by the utility model, the top of the water basin of the dry distillation furnace is blocked by the blocking coaming, so that waste gas generated in the water basin of the dry distillation furnace is guided into the condensation and gas collection box through the waste gas guide-out pipe to be collected, and steam in the waste gas is condensed by utilizing cooling water in the heat exchange copper pipe in the condensation and gas collection box; and the waste gas enters the heat accumulating type heating furnace through the combustion fan, so that the waste gas is directly combusted together with combustion gas in the heat accumulating type heating furnace, the combusted waste gas and flue gas enter the flue gas desulfurization system together for desulfurization and dust removal, and the flue gas is discharged after reaching the standard through a chimney.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas emission technology in shale oil refining, and more specifically, to a novel gas collection device for shale oil refining units. Background Technology

[0002] The dry distillation furnace is an important component of the dry distillation unit of oil shale in the Fushun Mining Shale Refinery. It is the main equipment for producing oil and gas through the low-temperature dry distillation process of oil shale.

[0003] In the existing Fushun-style shale retorting unit, the water basin in the retort furnace is used to cool and discharge the slag generated after the oxidation-reduction reaction of shale semi-coke in the generating section of the retort furnace. Simultaneously, it acts as a water seal to prevent the leakage of retort gas generated in the generating section at the bottom of the furnace. Therefore, the cooling water in the water basin directly contacts the retort waste residue and the gas generated in the generating section, containing organic substances such as sulfur, ammonia, and oil. The water temperature in the retort furnace water basin can reach 70℃ after heat exchange with the retort waste residue. During daily production, there is a situation of waste gas leakage. Although the plant initially effectively sealed the upper part of the water basin, it could not effectively treat the volatile waste gas emitted from the retort furnace water basin, and waste gas leakage still exists, failing to meet the increasingly stringent environmental protection standards and requirements. Therefore, we propose a new type of shale oil refining unit emission gas collection device. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a new type of gas collection device for shale oil refining units.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A novel shale oil refining unit's diffused gas collection device includes a dry distillation furnace body, a combustion fan, a regenerative thermal radiator, a desulfurization tower, a desulfurization circulating pump, and a chimney. A dry distillation furnace water basin is installed at the bottom of the dry distillation furnace body, and a sealing plate is fitted over the top of the water basin. A waste gas outlet pipe is fixedly connected to the top of the sealing plate, and a condensate collection box is fixedly connected to the end of the waste gas outlet pipe. A condensation mechanism is installed on the condensate collection box. A first pipe is fixedly connected to the input end of the combustion fan. The end is fixedly sleeved to the inner cavity of the condensate collection box. The output end of the combustion blower is fixedly connected to a second pipe. The end of the second pipe is fixedly connected to a regenerative heating furnace. A third pipe is provided between the desulfurization tower and the regenerative heating furnace. A desulfurization pool is provided at the bottom of the desulfurization tower. The two ends of the desulfurization circulation pump are respectively fixedly connected to a fifth pipe. The end of one fifth pipe is connected to the desulfurization pool, and the end of the other fifth pipe is connected to the desulfurization tower. A fourth pipe is provided between the chimney and the desulfurization tower.

[0007] As a preferred scheme of the utility model, the condensing gas collecting tank is fixedly connected with a plurality of hangers on the bottom surface, the bottom end of the hanger is fixedly connected with a support seat, the top surface of the support seat is placed with a water receiving tank, and the bottom of the condensing gas collecting tank is fixedly installed with an electric control valve, and the top end of the electric control valve extends to the inner cavity of the condensing gas collecting tank.

[0008] As a preferred scheme of the utility model, the condensing gas collecting tank is fixedly connected with a plurality of hangers on the bottom surface, the bottom end of the hanger is fixedly connected with a support seat, the top surface of the support seat is placed with a water receiving tank, and the bottom of the condensing gas collecting tank is fixedly installed with an electric control valve, and the top end of the electric control valve extends to the inner cavity of the condensing gas collecting tank.

[0009] As a preferred scheme of the utility model, the condensing gas collecting tank is fixedly connected with a plurality of hangers on the bottom surface, the bottom end of the hanger is fixedly connected with a support seat, the top surface of the support seat is placed with a water receiving tank, and the bottom of the condensing gas collecting tank is fixedly installed with an electric control valve, and the top end of the electric control valve extends to the inner cavity of the condensing gas collecting tank.

[0010] As a preferred scheme of the utility model, the condensing gas collecting tank is fixedly connected with a plurality of hangers on the bottom surface, the bottom end of the hanger is fixedly connected with a support seat, the top surface of the support seat is placed with a water receiving tank, and the bottom of the condensing gas collecting tank is fixedly installed with an electric control valve, and the top end of the electric control valve extends to the inner cavity of the condensing gas collecting tank.

[0011] As a preferred scheme of the utility model, the condensing gas collecting tank is fixedly connected with a plurality of hangers on the bottom surface, the bottom end of the hanger is fixedly connected with a support seat, the top surface of the support seat is placed with a water receiving tank, and the bottom of the condensing gas collecting tank is fixedly installed with an electric control valve, and the top end of the electric control valve extends to the inner cavity of the condensing gas collecting tank.

[0012] The utility model discloses a dry distillation furnace water basin exhaust gas treatment device has the advantages that:

[0013] (1) the utility model discloses a dry distillation furnace water basin exhaust gas treatment device, which comprises a dry distillation furnace body, a dry distillation furnace water basin, a waste gas outlet pipe, a condensing gas collecting tank, a heat exchange copper pipe, a water inlet pipe, a water pump, a water return pipe, a water receiving tank, a support seat, a water receiving tank, a temperature sensor, a control panel, a threaded plug and a drain valve.

[0014] (2) The utility model discloses, utilize temperature sensor real -time detection the water temperature in water inlet tank, backwater tank and heat exchange copper pipe, when the water temperature in water inlet tank, backwater tank and heat exchange copper pipe is too high, make the water pump run predetermined length of time, make the water in the water storage tank in water inlet pipe, water inlet tank, heat exchange copper pipe, backwater tank, backwater pipe circulation flow, thereby the cooling water in heat exchange copper pipe is replaced, guarantee heat exchange copper pipe to the steam in waste gas carries out the effect of condensation, avoid entering the waste gas in heat accumulating type heating furnace and have the water vapor influence combustion effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole structure schematic diagram of the utility model;

[0016] Figure 2 It is structure schematic diagram of dry distillation furnace body of the utility model;

[0017] Figure 3 It is structure schematic diagram of condensing gas collecting tank of the utility model;

[0018] Figure 4 It is cross section schematic diagram of condensing gas collecting tank of the utility model.

[0019] Mark explanation in drawing:

[0020] 1, dry distillation furnace body;2, dry distillation furnace water basin;3, plugging coaming;4, waste gas lead-out pipe;5, condensing gas collecting tank;6, first pipeline;7, combustion fan;8, second pipeline;9, heat accumulating type heating furnace;10, third pipeline;11, desulfurization tower;12, desulfurization pool;13, fourth pipeline;14, chimney;15, desulfurization circulating pump;16, fifth pipeline;17, condensing mechanism;18, feed hopper;19, water storage tank;20, backwater tank;21, water inlet tank;22, heat exchange copper pipe;23, temperature sensor;24, water inlet pipe;25, water pump;26, backwater pipe;27, control panel;28, suspender;29, support seat;30, water receiving tank;31, electric control valve;32, threaded plug;33, drain valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0022] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external", "top / bottom end" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, a particular orientation and operation, therefore cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the term "installation", "set", "sleeve / interfacing", "connection" and so on, should be broadly understood, for example, "connection", can be fixed connection, or detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Embodiment:

[0025] Please refer to Figures 1-4 A novel shale oil refining device exhaust gas collecting device, including dry distillation furnace body 1, combustion fan 7, regenerative heating furnace 9, desulfurization tower 11, desulfurization circulating pump 15 and chimney 14, the bottom of dry distillation furnace body 1 is provided with dry distillation furnace water basin 2, the top of dry distillation furnace water basin 2 is provided with blocking coaming 3, the top of blocking coaming 3 is fixedly sleeved with waste gas leading-out pipe 4, the end of waste gas leading-out pipe 4 is fixedly connected with condensation gas collecting tank 5, condensation gas collecting tank 5 is provided with condensation mechanism 17, the input end of combustion fan 7 is fixedly connected with first pipeline 6, the end of first pipeline 6 is fixedly sleeved into the inner cavity of condensation gas collecting tank 5, the output end of combustion fan 7 is fixedly connected with second pipeline 8, the end of second pipeline 8 is fixedly connected with regenerative heating furnace 9, third pipeline 10 is arranged between desulfurization tower 11 and regenerative heating furnace 9, the bottom of desulfurization tower 11 is provided with desulfurization tank 12, the two ends of desulfurization circulating pump 15 are fixedly connected with fifth pipeline 16 respectively, one end of one fifth pipeline 16 is connected with desulfurization tank 12, and the other end of the other fifth pipeline 16 is connected with desulfurization tower 11, fourth pipeline 13 is arranged between chimney 14 and desulfurization tower 11.

[0026] In the embodiment, the temperature in the regenerative heating furnace 9 is relatively high, which is controlled above 1200 DEG C, so that the volatile waste gas in the dry distillation furnace water basin 2 can be fully combusted.

[0027] Specifically, please refer to Figure 1 , Figure 3 And Figure 4The condensation mechanism 17 includes a water storage tank 19 fixedly connected to the top surface of the condensation manifold 5, a return water tank 20 fixedly connected to the front of the condensation manifold 5, and an inlet water tank 21 fixedly connected to the rear of the condensation manifold 5. Multiple heat exchange copper tubes 22 are fixedly sleeved between the return water tank 20 and the inlet water tank 21. The heat exchange copper tubes 22 penetrate the inner cavity of the condensation manifold 5. A temperature sensor 23 is fixedly installed on the inner wall of the inlet water tank 21. An inlet pipe 24 is fixedly connected to the top of the inlet water tank 21. The end of the inlet pipe 24 is fixedly sleeved to the inner cavity of the water storage tank 19. A water pump 25 is fixedly installed on the front of the water storage tank 19. The output end of the water pump 25 extends into the inner cavity of the water storage tank 19. A return water pipe 26 is fixedly connected to the input end of the water pump 25. The bottom end of the return water pipe 26 is fixedly sleeved to the inner cavity of the return water tank 20.

[0028] In this embodiment, temperature sensor 23 is used to detect the water temperature in inlet tank 21, return tank 20 and heat exchange copper tube 22. When the water temperature in inlet tank 21, return tank 20 and heat exchange copper tube 22 is too high, they can be replaced in time to ensure that heat exchange copper tube 22 condenses the steam in the exhaust gas so as to remove the steam in the wastewater.

[0029] For details, please refer to Figure 3 and Figure 4 The bottom surface of the condensate manifold 5 is fixedly connected with multiple hanging rods 28, the bottom end of the hanging rods 28 is fixedly connected with a support base 29, the top surface of the support base 29 is placed with a water receiving tank 30, and the bottom of the condensate manifold 5 is fixedly installed with an electric control valve 31, the top end of the electric control valve 31 extends into the inner cavity of the condensate manifold 5.

[0030] In this embodiment, the water condensed at the bottom of the condensate collection box 5 is released through the electric control valve 31, and the water released by the electric control valve 31 is collected through the water receiving tank 30.

[0031] For details, please refer to Figure 3 A control panel 27 is fixedly installed on the front of the condensate collection box 5.

[0032] In this embodiment, the device is controlled via control panel 27.

[0033] For details, please refer to Figure 3 and Figure 4 A threaded plug 32 is threadedly installed on the top of the water storage tank 19, and a drain valve 33 is fixedly installed on the side of the water storage tank 19.

[0034] In this embodiment, cooling water is put into the inner cavity of the water storage tank 19 by removing the threaded plug 32, and the cooling water in the water storage tank 19 is drained through the drain valve 33 so as to replace the cooling water in the water storage tank 19.

[0035] For details, please refer to Figure 1The top of the dry distillation furnace body 1 is provided with a feeding hopper 18.

[0036] In this embodiment, the finished shale is put into the dry distillation furnace body 1 through the feeding hopper 18.

[0037] Working principle: in use, firstly, the blocking coaming 3 is arranged on the dry distillation furnace water basin 2 below the plurality of dry distillation furnace bodies 1, and the waste gas outlet pipe 4 above the plurality of blocking coamings 3 is connected with the condensation gas collecting tank 5, then the finished shale is put into the dry distillation furnace body 1 through the feeding hopper 18 for processing, the slag falls into the dry distillation furnace water basin 2, the slag is cooled by the water in the dry distillation furnace water basin 2, in addition, the waste gas generated during cooling is introduced into the condensation gas collecting tank 5 through the waste gas outlet pipe 4, the cooling water in the heat exchange copper pipe 22 and the waste gas are contacted, the steam in the waste gas is condensed by the cooling water in the heat exchange copper pipe 22, so that the steam is condensed into water and collected at the bottom of the inner cavity of the condensation gas collecting tank 5, so that the waste gas becomes dry, then the waste gas in the condensation gas collecting tank 5 is introduced into the regenerative heating furnace 9 from the first pipeline 6 and the second pipeline 8 by the combustion air blower 7, so that the waste gas is directly combusted together with the combustion gas in the regenerative heating furnace 9, the combusted waste gas and flue gas enter the desulfurization tower 11 for desulfurization and dust removal, and the gas after dust removal is discharged through the chimney 14, finally, the temperature sensor 23 is used to detect the water temperature in the water inlet tank 21, the backwater tank 20 and the heat exchange copper pipe 22 in real time, when the water temperature in the water inlet tank 21, the backwater tank 20 and the heat exchange copper pipe 22 is too high, the water pump 25 is started to run for a predetermined time, so that the backwater pipe 26 pumps the water in the inner cavity of the backwater tank 20 into the inner cavity of the water storage tank 19, and the water in the heat exchange copper pipe 22 and the water inlet tank 21 is also pumped out, in addition, the cooling water in the inner cavity of the water storage tank 19 is introduced into the inner cavity of the water inlet tank 21 through the water inlet pipe 24, so that the cooling water in the heat exchange copper pipe 22 is replaced, the effect of condensing the steam in the waste gas by the heat exchange copper pipe 22 is ensured, so that the steam in the waste water is removed.

[0038] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A novel shale oil refining unit emission gas collection device, comprising a dry distillation furnace (1), a combustion fan (7), a regenerative heating furnace (9), a desulfurization tower (11), a desulfurization circulating pump (15), and a chimney (14), characterized in that: The bottom of the dry distillation furnace body (1) is provided with a dry distillation furnace water basin (2), and the top of the dry distillation furnace water basin (2) is fitted with a sealing plate (3). The top of the sealing plate (3) is fixedly fitted with a waste gas outlet pipe (4), and the end of the waste gas outlet pipe (4) is fixedly connected to a condensation gas collection box (5). A condensation mechanism (17) is provided on the condensation gas collection box (5). The input end of the combustion blower (7) is fixedly connected to a first pipe (6), and the end of the first pipe (6) is fixedly fitted to the inner cavity of the condensation gas collection box (5). The output end of the combustion blower (7) is fixedly connected to a second pipe. (8), the end of the second pipe (8) is fixedly connected to the regenerative heating furnace (9), a third pipe (10) is provided between the desulfurization tower (11) and the regenerative heating furnace (9), a desulfurization pool (12) is provided at the bottom of the desulfurization tower (11), a fifth pipe (16) is fixedly connected to both ends of the desulfurization circulating pump (15), one end of the fifth pipe (16) is connected to the desulfurization pool (12), and the other end of the fifth pipe (16) is connected to the desulfurization tower (11). A fourth pipe (13) is provided between the chimney (14) and the desulfurization tower (11).

2. The novel shale oil refining unit diffuse gas collection device according to claim 1, characterized in that: The condensation mechanism (17) includes a water storage tank (19) fixedly connected to the top surface of the condensation manifold (5), a return water tank (20) fixedly connected to the front of the condensation manifold (5), and an inlet water tank (21) fixedly connected to the rear of the condensation manifold (5). A plurality of heat exchange copper tubes (22) are fixedly sleeved between the return water tank (20) and the inlet water tank (21). The heat exchange copper tubes (22) penetrate the inner cavity of the condensation manifold (5). A temperature sensor is fixedly installed on the inner wall of the inlet water tank (21). The device (23) has an inlet pipe (24) fixedly connected to the top of the inlet tank (21), and the end of the inlet pipe (24) is fixedly sleeved to the inner cavity of the storage tank (19). A water pump (25) is fixedly installed on the front of the storage tank (19), and the output end of the water pump (25) extends to the inner cavity of the storage tank (19). A return pipe (26) is fixedly connected to the input end of the water pump (25), and the bottom end of the return pipe (26) is fixedly sleeved to the inner cavity of the return tank (20).

3. A novel shale oil refining unit diffuse gas collection device according to claim 2, characterized in that: The bottom surface of the condensate collection box (5) is fixedly connected to multiple hanging rods (28), the bottom end of the hanging rods (28) is fixedly connected to a support base (29), the top surface of the support base (29) is placed with a water receiving tank (30), the bottom of the condensate collection box (5) is fixedly installed with an electric control valve (31), and the top end of the electric control valve (31) extends into the inner cavity of the condensate collection box (5).

4. A novel shale oil refining unit diffuse gas collection device according to claim 2, characterized in that: A control panel (27) is fixedly installed on the front of the condensate collection box (5).

5. A novel shale oil refining unit diffuse gas collection device according to claim 2, characterized in that: A threaded plug (32) is threaded onto the top of the water storage tank (19), and a drain valve (33) is fixedly installed on the side of the water storage tank (19).

6. A novel shale oil refining unit diffuse gas collection device according to claim 1, characterized in that: The top of the dry distillation furnace body (1) is provided with a feed hopper (18).

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