CN211291006U

CN211291006U - Hydrogenation catalyst regeneration is with gas-electricity hybrid heating kiln convenient to transportation

Info

Publication number: CN211291006U
Application number: CN201922036028.1U
Authority: CN
Inventors: 张锋; 张凤清
Original assignee: Hubei Zhongchao Chemical Technology Co ltd
Current assignee: Hubei Zhongchao Chemical Technology Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-18
Anticipated expiration: 2029-11-22

Abstract

The utility model provides a hydrogenation catalyst regeneration is with gas-electricity mixed heating kiln convenient to transportation, including the furnace body, be equipped with the mesh belt conveyor in the furnace body, the mesh belt conveyor include conveying mesh belt and with conveying mesh belt complex conveying roller, the conveying roller setting is in the frame, one of them conveying roller passes through the actuating mechanism drive, the furnace body includes a plurality of unit festival, and unit festival inner wall is equipped with the furnace wall, and unit festival tip is equipped with the connecting plate, and the connecting plate of adjacent unit festival passes through bolted connection, and the frame includes a plurality of unit support bodies that set up in unit festival, is equipped with a plurality of backing rolls that support conveying mesh belt in the frame, and conveying mesh belt's upside is equipped with a plurality of electrical heating mechanisms, and the downside is equipped. This heating furnace kiln can be convenient for transport, improves the heating degree of consistency simultaneously.

Description

Hydrogenation catalyst regeneration is with gas-electricity hybrid heating kiln convenient to transportation

Technical Field

The utility model belongs to hydrogenation catalyst production facility field, in particular to hydrogenation catalyst regeneration is with gas-electricity hybrid heating kiln convenient to transportation.

Background

The hydrotreating process of petroleum fractions is one of the effective means for producing clean fuels, and the core of the hydrotreating process is a hydrotreating catalyst. In the long-term use process, the surface of the catalyst forms macromolecular carbon-containing compounds due to chemical reactions such as condensation, dehydrogenation and the like, covers the active center of the catalyst, reduces the effective surface area of the catalyst reaction, and finally leads the catalyst to lose activity completely. The method recovers the activity of the old catalyst by a regeneration-reactivation means, reduces the treatment of the old catalyst, reduces the operation cost of a refinery, protects the environment and has certain social and economic benefits.

The hydrotreating catalyst contains active component oxides of the VIII family and the VIB family of the periodic table loaded into a carrier, and the carrier generally contains alumina, silica, titania, zirconia and the like. The active components are impregnated on the carrier through an impregnation process flow, and then the finished catalyst is prepared through drying and roasting processes. The catalyst regeneration mode is divided into two in-reactor regeneration and out-of-reactor regeneration. At present, the regeneration technology outside the device is adopted in the industry, and the advantages are that the local overheating is not easy to generate in the catalyst regeneration process, and the activity is recovered well.

The method for regenerating the catalyst outside the device is mainly used for contacting the catalyst with oxygen in a kiln to remove sulfur and carbon generated on the surface of the catalyst, namely regenerating the catalyst by burning the sulfur and the carbon. The existing kiln for regenerating the hydrogenation catalyst mainly adopts fuel gas for heating, but because the heating kiln is longer in length, overlarge in arrangement space, low in heating power and uneven in heating, the problem of temperature drop in front zone heating can be caused, and the quality of products is influenced. CN207862406U discloses a gas-electric hybrid mesh belt type heat treatment equipment with a heat insulation furnace lining, which comprises a furnace body and a quenching oil groove device, wherein the furnace body comprises a quenching furnace, the quenching furnace comprises a hearth heating section, a hearth soaking section and a hearth heat preservation section which are sequentially connected, and the hearth heat preservation section is connected with the quenching oil groove device; a plurality of gas burners are arranged in the hearth heating section, a plurality of electric heating radiant tubes are arranged in the hearth soaking section and the hearth heat preservation section, and the gas burners and the electric heating radiant tubes are both vertical to the longitudinal section of the quenching furnace; the furnace wall of the quenching furnace comprises a heat-insulating brick and an aluminum carbonate fiber blanket attached to the heat-insulating brick, and an aluminum carbonate fiber module is arranged between the heat-insulating brick and the aluminum carbonate fiber blanket. This firing equipment passes through gas-electricity hybrid heating, improves the heating degree of consistency and prevents to heat and fall the temperature. And the length of the heating kiln is long, which can reach several meters or even ten meters, so that the transportation is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problem that a hydrogenation catalyst regeneration is with gas-electricity hybrid heating kiln convenient to transportation is provided, can be convenient for transport, improves the heating degree of consistency simultaneously.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a hydrogenation catalyst regeneration is with gas-electricity mixed heating kiln convenient to transportation, includes the furnace body, is equipped with the mesh belt conveyor in the furnace body, the mesh belt conveyor include conveying mesh belt and with conveying mesh belt complex conveying roller, the conveying roller setting is in the frame, one of them conveying roller passes through the actuating mechanism drive, the furnace body includes a plurality of unit festival, and unit festival inner wall is equipped with the furnace lining, and unit festival tip is equipped with the connecting plate, and bolted connection is passed through to the connecting plate of adjacent unit festival, and the frame includes a plurality of unit support bodies that set up in the unit festival, is equipped with a plurality of backing rolls that support conveying mesh belt in the frame, and conveying mesh belt's upside is equipped with a plurality of electrical heating.

In a preferred scheme, the electric heating mechanism is an electric heating pipe, and the gas heating mechanism is a gas burner.

In a preferred scheme, the furnace lining is made of fiber cotton and refractory bricks.

In a preferred scheme, the outer side of the unit section is provided with a heat insulation layer.

In a further scheme, the heat-insulating layer is a ceramic fiber blanket.

In a further scheme, the butt seams of the adjacent unit sections and the corresponding butt seams of the heat-insulating layers are arranged in a staggered mode.

In a preferable scheme, lifting lugs are arranged on the outer sides of the unit sections.

The utility model provides a hydrogenation catalyst regeneration gas-electricity hybrid heating kiln convenient to transport, which adopts a gas-electricity hybrid heating mode, and can well improve the heating uniformity; set up to a plurality of unit festival through the furnace body, carry out single transportation to the centralized box with single unit festival difference hoist and transport, splice a plurality of unit festival after transporting to the building site to can transport in a flexible way according to the length of the heating furnace kiln of in-service use, for whole transportation or field processing, the transportation is convenient, and installation cycle is short.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 1;

in the figure: conveying mesh belt 1, conveying roller 2, frame 3, actuating mechanism 4, unit festival 5, furnace lining 6, connecting plate 7, backing roll 8, electric heating mechanism 9, gas heating mechanism 10, heat preservation 11, lug 12.

Detailed Description

As shown in fig. 1 and fig. 2, a gas-electric hybrid heating kiln for hydrogenation catalyst regeneration convenient to transport comprises a furnace body, a mesh belt conveyor is arranged in the furnace body, the mesh belt conveyor comprises a conveying mesh belt 1 and conveying rollers 2 matched with the conveying mesh belt 1, the conveying rollers 2 are arranged at two ends of the conveying mesh belt 1, the conveying rollers 2 are arranged on a frame 3, one conveying roller 2 is driven by a driving mechanism 4, in this embodiment, the driving mechanism 4 is a speed reducing motor fixed on the frame 3, the furnace body comprises a plurality of unit sections 5, a furnace lining 6 is arranged on the inner wall of each unit section 5, a connecting plate 7 is arranged at the end of each unit section 5, the connecting plates 7 of adjacent unit sections 5 are connected through bolts, the frame 3 comprises a plurality of unit frame bodies arranged in the unit sections 5, a plurality of supporting rollers 8 for supporting the conveying mesh belt 1 are arranged on the frame 3, a plurality of electric heating mechanisms 9, the electric heating mechanism 9 can adopt an electric heating wire or an electric heating pipe, a plurality of gas heating mechanisms 10 are arranged on the lower side of the electric heating mechanism, and the gas heating mechanisms 10 are gas burners. The electric heating mechanism 9 and the gas heating mechanism 10 are transversely arranged in the unit section 5, and the electric heating mechanism 9 and the gas heating mechanism 10 are arranged in a staggered mode.

The gas-electric hybrid heating mode is adopted, the heating uniformity can be well improved, the single power of the gas burner is high, the temperature rise is fast, and the problem that the temperature of the front area falls can be effectively solved.

During the specific use, carry out single transportation to concentrating the case respectively with single unit section 5, transport and splice a plurality of unit sections 5 behind the building site to can carry out nimble transportation according to the length of the heating furnace kiln of in-service use, for whole transportation or field processing, the transportation is convenient, and installation cycle is short.

Preferably, the furnace lining 6 is made of fiber cotton and refractory bricks. The furnace lining 6 can also be replaced by other refractory heat-insulating materials.

Preferably, the outer side of the unit section 5 is provided with an insulating layer 11. Through setting up heat preservation 11, can effectively prevent the internal heat loss of furnace, improve heat utilization rate.

In this embodiment, the heat insulating layer 11 is a ceramic fiber blanket. The insulating layer 11 may be replaced by a composite layer, for example, a ceramic fiber plate, a ceramic fiber blanket and aluminum silicate wool may be sequentially arranged on the outer side of the unit section 5 in layers.

Preferably, as shown in fig. 3, the butt seams of the adjacent unit sections 5 are staggered with the corresponding butt seams of the insulating layer 11.

The butt joint between the unit sections 5 and the butt joint between the heat preservation layers 11 are arranged in a staggered mode, the heat preservation effect of the furnace body is improved, and the heat loss amount of the butt joint between the unit sections 5 is reduced.

Preferably, the unit section 5 is provided with a lifting lug 12 on the outer side. The lifting lugs 12 are arranged, so that the unit sections 5 can be conveniently lifted. In this embodiment, the lifting lug 12 may be a steel cylinder, and the reinforcing rib is additionally arranged outside the steel cylinder, so as to ensure the strength and rigidity of the lifting lug 12.

Taking the 10-meter long specification as an example, the length of the unit section 5 is 2 meters, and the number is 5 sections, the specific operation is as follows: firstly, the processed unit sections 5 are transported to an installation place through a transport vehicle or a container; splicing the unit sections 5 by auxiliary transport of a travelling crane; after the splicing and fixing, the conveying net belt 1 of the net belt conveyor can be installed for use.

Claims

1. The utility model provides a hydrogenation catalyst regeneration is with gas-electricity hybrid heating kiln convenient to transportation, includes the furnace body, is equipped with the mesh belt conveyor in the furnace body, the mesh belt conveyor include conveying mesh belt (1) and with conveying mesh belt (1) complex conveying roller (2), conveying roller (2) set up in frame (3), one of them conveying roller (2) are through actuating mechanism (4) drive, its characterized in that: the furnace body includes a plurality of unit festival (5), unit festival (5) inner wall is equipped with furnace lining (6), unit festival (5) tip is equipped with connecting plate (7), connecting plate (7) of adjacent unit festival (5) are through bolted connection, frame (3) are including a plurality of unit support bodies that set up in unit festival (5), be equipped with a plurality of backing rolls (8) that support conveying mesh belt (1) in frame (3), the upside of conveying mesh belt (1) is equipped with a plurality of electrical heating mechanism (9), the downside is equipped with a plurality of gas heating mechanism (10).

2. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 1, wherein: the electric heating mechanism (9) is an electric heating pipe, and the gas heating mechanism (10) is a gas burner.

3. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 1, wherein: the furnace lining (6) is made of fiber cotton and refractory bricks.

4. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 1, wherein: and a heat-insulating layer (11) is arranged on the outer side of the unit section (5).

5. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 4, wherein: the heat-insulating layer (11) is a ceramic fiber blanket.

6. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 4, wherein: the butt seams of the adjacent unit sections (5) and the corresponding butt seams of the heat-insulating layers (11) are arranged in a staggered mode.

7. The transportable gas-electric hybrid heating kiln for regenerating a hydrogenation catalyst as recited in claim 1, wherein: lifting lugs (12) are arranged on the outer sides of the unit sections (5).