Petrochemical cracking oil hydrogenation furnace

Abstract

The utility model relates to the technical field of hydrogenation furnaces, and particularly discloses a petrochemical cracking oil hydrogenation furnace which comprises a furnace body, a discharging pipe is arranged in the middle of the furnace body, a plurality of reactant storage bins which rotate on the discharging pipe are installed in the furnace body from top to bottom, an electric closing plate is installed on the discharging pipe, and when the electric closing plate is opened, the reactant storage bins are closed. The discharging pipe can be communicated with the reactant storage bin, a pushing device used for pushing a catalyst on the reactant storage bin into the discharging pipe is further installed on the inner wall of the reactant storage bin, and a driving device used for enabling the reactant storage bin to rotate is further installed on the furnace body. The furnace body is further provided with a feeding device used for feeding materials into the reactant storage bin. According to the utility model, a reactant is pushed into the discharge pipe through the pushing device, and a new reactant is pushed into the reactant storage bin, so that the catalyst can be replaced without shutdown.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogenation furnace technical field, concretely relates to petrochemical cracked oil hydrogenation furnace. BACKGROUND

[0002] The ebullated bed hydrogenation reaction can treat high metal and high asphaltene content inferior raw oil, and has the advantages of small pressure drop, uniform temperature and the like. The ebullated bed hydrogenation reactor can process high sulfur, high carbon residue and high metal heavy oil, and has obvious advantages in solving the problems of low space velocity, fast catalyst deactivation, large system pressure drop, easy coking and short device operation cycle of the fixed bed residual oil hydrogenation. However, since the material in the ebullated bed reactor is in a fully mixed state, the catalyst particles and liquid phase reaction products are taken out of the reactor by the gas phase products, and are entrained into the equipment and pipelines in the subsequent high-pressure separation process, which reduces the utilization rate of the catalyst and the stability of the device, thereby limiting the long-period operation of the ebullated bed hydrogenation device.

[0003] The hydrogenation reaction device in the prior art mainly relies on catalyst particles to improve the efficiency of hydrogenation reaction, but the catalyst needs to be replaced frequently, and the operation needs to be stopped during the replacement process, which affects the efficiency of the reaction. UTILITY MODEL CONTENT

[0004] The utility model provides petrochemical cracked oil hydrogenation furnace, aims at solving the problem of hydrogenation furnace in related art needs to stop the machine and replaces the catalyst when carrying out the reaction.

[0005] The petrochemical cracked oil hydrogenation furnace comprises a furnace body, a discharge pipe is arranged in the middle of the furnace body, a plurality of reaction agent storage bins rotating on the discharge pipe are arranged in the furnace body from top to bottom, an electric closing plate is arranged on the discharge pipe, when the electric closing plate is opened, the discharge pipe can be communicated with the reaction agent storage bin, a pushing device for pushing the catalyst on the reaction agent storage bin into the discharge pipe is further arranged on the inner wall of the reaction agent storage bin, a driving device for rotating the reaction agent storage bin is further arranged on the furnace body, and a feeding device for feeding into the reaction agent storage bin is further arranged on the furnace body.

[0006] The utility model has the advantages that when the reaction agent storage bin is replaced, the discharge pipe is first opened through the electric closing plate, then the saturated reaction agent in the reaction agent storage bin is pushed into the discharge pipe through the pushing device from the gap opened by the electric closing plate, then the new storage agent is pushed into the reaction agent storage bin through the feeding device, and the new catalyst falling into the reaction agent storage bin is pushed into different parts of the reaction agent storage bin through the pushing device.

[0007] Preferably, the electric closing plate comprises an electric telescopic rod and an arc.

[0008] Preferably, the arc-shaped plate is sealingly connected with the discharge pipe.

[0009] Preferably, the pushing device comprises a driving motor, a screw rod mechanism and a pushing plate, the driving motor is mounted on the inner wall of the reagent storage bin, the screw rod mechanism is arranged along the radial direction of the reagent storage bin, and the pushing plate is mounted on the screw nut of the screw rod mechanism.

[0010] Preferably, the driving device comprises a rotating motor, a driving gear and a gear ring, the rotating motor is mounted on the inner wall of the furnace body, the driving gear is mounted on the output end of the rotating motor, and the gear ring is mounted on the reagent storage bin.

[0011] Preferably, the feeding device comprises a feeding bin mounted on the furnace body, and an automatically openable and closable electric sealing door mounted on the feeding bin.

[0012] By adopting the technical scheme, the utility model has the advantages that:

[0013] When the reagent in the reagent storage bin is replaced, the discharge pipe is first opened by the electric sealing plate, then the screw rod mechanism is driven to move by the driving motor, and the impurities are pushed into the discharge pipe by the movement of the pushing plate, the driving gear is driven to rotate by the rotating motor, the gear ring is driven to rotate, the reagent storage bin is driven to rotate, and then the saturated reagent in the reagent storage bin is cleaned into the discharge pipe, then new reagent is supplied into the reagent storage bin by the feeding device, and the reagent is pushed into different positions in the reagent storage bin by the driving device, so that the catalyst can be replaced without stopping. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the furnace body of the utility model.

[0015] Figure 2 It is a structural schematic view of the inside of the furnace body of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic view of the reagent storage bin of the utility model.

[0017] Figure 4 It is a structural schematic view of the reagent storage bin of the utility model from the top.

[0018] The drawings show that: 1, the furnace body; 2, reagent storage bin; 3, discharge pipe; 4, electric sealing plate; 5, pushing device; 51, driving motor; 52, screw rod mechanism; 53, pushing plate; 6, driving device; 61, rotating motor; 62, driving gear; 63, gear ring; 7, feeding device; 71, feeding bin; 72, electric sealing door. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0020] As Figures 1-4 shown, the petrochemical cracking oil hydrogenation furnace, including furnace body 1, the middle part of furnace body 1 is equipped with discharge pipe 3, a plurality of reaction agent storage bin 2 is installed in furnace body 1 from top to bottom and rotates on discharge pipe 3, the discharge pipe 3 is installed with electric closing plate 4, when the electric closing plate 4 is opened, the discharge pipe 3 can be communicated with reaction agent storage bin 2, the inner wall of reaction agent storage bin 2 is also installed with the pushing device 5 for pushing the catalyst on reaction agent storage bin 2 into the discharge pipe 3, the furnace body 1 is also installed with the driving device 6 for making reaction agent storage bin 2 rotate, the furnace body 1 is also installed with the feeding device 7 for feeding into reaction agent storage bin 2.

[0021] When the reaction agent storage bin 2 is replaced, the discharge pipe 3 is opened through the electric closing plate 4 first, then the saturated reaction agent in the reaction agent storage bin 2 is pushed into the discharge pipe 3 through the pushing device 5 from the gap opened by the electric closing plate 4, then the new storage agent is pushed into the reaction agent storage bin 2 through the feeding device 7, at this time, the new catalyst falling into the reaction agent storage bin 2 is pushed into different parts of the reactor storage bin through the pushing device 5.

[0022] The electric closing plate 4 includes an electric telescopic rod and an arc plate; the arc plate is driven by the electric telescopic rod to move up and down to open or close the discharge pipe 3.

[0023] In the preferred embodiment of the present application, the arc plate is sealingly connected with the discharge pipe 3, when the arc plate seals the discharge pipe 3, the discharge pipe 3 is in a sealed state, avoiding gas leakage from the discharge pipe 3.

[0024] The pushing device 5 includes a driving motor 51, a lead screw mechanism 52 and a push plate 53, the driving motor 51 is installed on the inner wall of the reaction agent storage bin 2, the lead screw mechanism 52 is arranged along the radial direction of the reaction agent storage bin 2, and the push plate 53 is installed on the lead screw nut of the lead screw mechanism 52; the lead screw mechanism 52 is driven to slide the push plate 53 along the radial direction of the reaction agent storage bin 2 to push the saturated storage agent into the discharge pipe 3 by rotating the driving motor 51.

[0025] The driving device 6 comprises a rotating motor 61, a driving gear 62 and a gear ring 63, the rotating motor 61 is installed on the inner wall of the furnace body 1, the driving gear 62 is installed on the output end of the rotating motor 61, and the gear ring 63 is installed on the reagent storage bin 2; the driving gear 62 is driven to rotate by the rotating motor 61, the gear ring 63 is driven to rotate by the driving gear 62, and the reagent storage bin 2 is driven to rotate by the gear ring 63, so that the materials in different parts of the reagent storage bin 2 are pushed into the discharge pipe 3.

[0026] The feeding device 7 comprises a feeding bin 71 installed on the furnace body 1, and an automatically openable and closable electric sealing door 72 is installed on the feeding bin 71; when it is necessary to fill the reagent storage bin 2 with new catalyst, the electric sealing door 72 is opened, and the materials in the feeding bin 71 fall into the reagent storage bin 2, and then the catalyst is pushed into different parts of the reagent storage bin 2 by the pushing device 5.

[0027] The specific working principle of the utility model is as follows:

[0028] When the reagent in the reagent storage bin 2 is replaced, the discharge pipe 3 is first opened by the electric sealing plate 4, then the screw rod mechanism 52 is driven to rotate by the driving motor 51, and then the push plate 53 is driven to move and push the impurities into the discharge pipe 3, the driving gear 62 is driven to rotate by the rotating motor 61, and then the gear ring 63 is driven to rotate, and then the reagent storage bin 2 is driven to rotate, and then the saturated reagent in the reagent storage bin 2 is cleaned into the discharge pipe 3, then new reagent is supplied into the reagent storage bin 2 by the feeding device 7, and the reagent is pushed into different parts of the reagent storage bin 2 by the driving device 6.

[0029] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. Petrochemical cracking oil hydrogenation furnace, characterized in that, The utility model relates to a kind of reaction agent storage and feeding device, including: Furnace body (1), furnace body (1) middle part is equipped with discharge pipe (3), the inside of the furnace body is installed with multiple reaction agent storage bin (2) rotating on discharge pipe (3) from top to bottom, electric closing plate (4) is installed on discharge pipe (3), when the electric closing plate (4) is opened, discharge pipe (3) can be communicated with storage bin (2), the inside wall of the storage bin (2) is also installed with the pushing device (5) for pushing catalyst on storage bin (2) into discharge pipe (3), the driving device (6) for making storage bin (2) rotate is further installed on the furnace body (1), the feeding device (7) for feeding to storage bin (2) is further installed on the furnace body (1).

2. The petrochemical oil cracking hydrogenation furnace according to claim 1, characterized in that, The electric closing plate (4) includes electric telescopic rod and arc plate.

3. The petrochemical oil cracking hydrogenation furnace according to claim 2, characterized in that, Arc plate is sealedly connected between discharge pipe (3).

4. The petrochemical oil cracking hydrogenation furnace according to claim 1, characterized in that, The pushing device (5) includes driving motor (51), screw mechanism (52) and push plate (53), the driving motor (51) is installed on the inner wall of reaction agent storage bin (2), screw mechanism (52) is arranged along the radial direction of reaction agent storage bin (2), and push plate (53) is installed on the screw nut of screw mechanism (52).

5. The petrochemical oil cracking hydrogenation furnace according to claim 1, characterized in that, The driving device (6) includes rotating motor (61), driving gear (62) and gear ring (63), the rotating motor (61) is installed on the inner wall of furnace body (1), driving gear (62) is installed on the output end of rotating motor (61), and the gear ring (63) is installed on reaction agent storage bin (2).

6. The petrochemical oil cracking hydrogenation furnace according to claim 1, characterized in that, The feeding device (7) includes feeding bin (71) installed on furnace body (1), and electric closing door (72) that can be automatically opened and closed is installed on feeding bin (71).

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