A vertical pyrolysis furnace
By designing a vertical pyrolysis furnace, using heating and exhaust gas reuse technology in absolute oxygen state, the harmless problem of coal tar slag and dirty oil sludge treatment is solved, and efficient and economical harmless treatment is achieved, which is suitable for industrial applications.
Patent Information
- Application Number
- CN201910537873.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-06-20
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2039-06-20
AI Technical Summary
The existing technology lacks feasible and economical treatment methods to thoroughly treat coal tar residue and oil field dirty oil sludge, resulting in most of the final comprehensive treatment not being achieved and only partial reduction treatment is achieved.
A vertical pyrolysis furnace is designed, including a combustion machine, furnace body, bracket, cooling and dust removal pipeline and mixed gas collection pipeline. By heating the material in an absorptive state, hydrocarbon pollutants are evaporated and filtered through condensation and filtration. And absorb and recover oil steam, achieve 100% exhaust gas reuse, and eliminate toxic and harmful substances through high temperature decomposition.
It has achieved safe and reliable harmless treatment, with less investment in equipment, low operating costs, strong processing capacity, suitable for industrial promotion, and can quickly reduce quantities and eliminate toxic and harmful substances to the greatest extent.
Smart Images
Figure CN110760322B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of coal chemical industry, in particular to a vertical pyrolysis furnace of harmless treatment equipment for coal tar residue and oil sludge in oil field production areas. Background Art
[0002] In the field of coal chemical industry, due to the lack of "feasible and economical" treatment technology, more than 80% of coal tar residue and oilfield sludge have not been finally treated comprehensively, and at most they can be partially reduced. The reason is that there is no thorough, economical and reliable treatment technology. Summary of the invention
[0003] The main purpose of the present invention is to provide a vertical pyrolysis furnace, which is characterized by comprising a burner, a furnace body, and a bracket. The burner and the furnace body are installed on the upper side of the bracket, the burner and the furnace body are connected, and the outer side of the furnace body is wrapped with a heat-insulating layer. The furnace body is composed of a heat-resistant fan, a barrel, a quick-opening cover, an upper insulation cover, a cooling and dust removal pipeline, a mixed gas collection pipeline, a flue, a combustion chamber, and a lower insulation cover. A combustion chamber is arranged inside the furnace body, a feed port is opened on the upper side of the furnace body, and a discharge port is opened on the lower side. The feed port is located in the combustion chamber. On the upper side, the discharge port is located at the lower side of the combustion chamber, an upper insulation cover is installed at the feed port, a lower insulation cover is installed at the discharge port, a barrel is installed in the combustion chamber, quick-opening covers are installed at the upper and lower ends of the barrel respectively, the barrel connects the feed port, the discharge port and the combustion chamber, the upper side of the barrel is respectively connected to the cooling and dust removal pipeline and the mixed gas collection pipeline, one side of the combustion chamber is respectively connected to the burner and the heat-resistant blower, the heat-resistant blower is connected to the burner and is located on the upper side of the burner, and the other side of the combustion chamber is connected to the flue.
[0004] The cooling and dust removal pipeline consists of an outer pipeline, an inner pipeline, and a filtering structure. The inner pipeline is wrapped inside the outer pipeline. A water inlet and a water outlet are opened on the upper side of the outer pipeline. The water inlet is connected to a water pump through a water supply pipeline, and the water outlet is connected to a recovery pool through a water supply pipeline. A filtering structure is installed at one end of the inner pipeline, and the filtering structure is connected to the recovery pipeline. The filtering structure is a detachable structure.
[0005] The mixed gas collecting pipeline is connected to the air suction device.
[0006] The beneficial effects of the present invention are as follows: the present invention is safe and reliable, requires little equipment investment, has low operating costs, has strong processing capacity, and is suitable for industrial promotion and application. The present invention is used for harmless treatment of coal tar residue and dirty oil sludge. The design of the combustion chamber of the present invention allows the material to be heated to 450-600 degrees Celsius by the burner under anoxic conditions, and the hydrocarbon pollutants therein are rapidly volatilized and converted into oil vapor by normal pressure evaporation. The tail gas containing volatile oil vapor is recovered through the mixed gas collection pipeline through the process of condensation, filtration and adsorption to recover coal tar / pyrolysis oil; the purified tail gas is completely recovered through the cooling and dust removal pipeline, compressed and stored, and used as a supplementary energy supply for the heating system, so as to achieve 100% tail gas reuse. At the same time, after a series of comprehensive reactions such as high temperature decomposition, macromolecular hydrocarbons such as asphalt, wax, colloid and other difficult-to-degrade organic matter are pyrolyzed and carbonized, achieving the goal of rapid reduction, harmlessness, and maximum elimination of toxic and harmful substances. The pyrolyzed material is quickly cleaned out of the discharge barrel by a dedicated discharge mechanism after cooling and dust removal. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the structure of the present invention.
[0008] Figure 2 This is a schematic diagram of the cooling and dust removal pipeline structure of the present invention.
[0009] Figure 3 It is a cross-sectional view of the present invention.
[0010] In the figure: burner 1, furnace body 2, bracket 3, heat-resistant fan 2-1, barrel 2-2, quick-open cover 2-3, upper insulation cover 2-4, cooling and dust removal pipeline 2-5, mixed gas collection pipeline 2-6, flue 2-7, combustion chamber 2-8, lower insulation cover 2-9, material 2-10, thermal insulation layer 2-11, outer pipeline 2-51, inner pipeline 2-52, filter structure 2-53, water inlet 2-54, water outlet 2-55. DETAILED DESCRIPTION Example
[0011] The present invention is a vertical pyrolysis furnace, comprising a burner 1, a furnace body 2, and a bracket 3. The burner 1 and the furnace body 2 are installed on the upper side of the bracket 3. The burner 1 and the furnace body 2 are connected. The outer side of the furnace body 2 is wrapped with a thermal insulation layer 2-11. The furnace body 2 is composed of a heat-resistant fan 2-1, a barrel 2-2, a quick-opening cover 2-3, an upper thermal insulation cover 2-4, a cooling and dust removal pipeline 2-5, a mixed gas collection pipeline 2-6, a flue 2-7, a combustion chamber 2-8, and a lower thermal insulation cover 2-9. The furnace body 2 is provided with a combustion chamber 2-8. The furnace body 2 is provided with a feed port on the upper side and a discharge port on the lower side. The feed port is located on the upper side of the combustion chamber 2-8, and the discharge port is located on the lower side of the combustion chamber 2-8. On the lower side of the combustion chamber 2-8, an upper insulation cover 2-4 is installed at the feed port, and a lower insulation cover 2-9 is installed at the discharge port. A barrel 2-2 is installed in the combustion chamber 2-8, and quick-opening covers 2-3 are respectively installed at the upper and lower ends of the barrel 2-2. The barrel 2-2 connects the feed port, the discharge port and the combustion chamber 2-8 through and through. The upper side of the barrel 2-2 is respectively connected to the cooling and dust removal pipeline 2-5 and the mixed gas collection pipeline 2-6. One side of the combustion chamber 2-8 is respectively connected to the burner 1 and the heat-resistant blower 2-1. The heat-resistant blower 2-1 is connected to the burner 1 and is located on the upper side of the burner 1. The other side of the combustion chamber 2-8 is connected to the flue 2-7. The cooling and dust removal pipeline 2-5 is composed of an outer pipeline 2-51, an inner pipeline 2-52, and a filter structure 2-53. The inner pipeline 2-52 is wrapped inside the outer pipeline 2-51. A water inlet 2-54 and a water outlet 2-55 are opened on the upper side of the outer pipeline 2-51. The water inlet 2-54 is connected to a water pump through a water pipeline, and the water outlet 2-55 is connected to a recovery pool through a water pipeline. A filter structure 2-53 is installed at one end of the inner pipeline 2-52. The filter structure 2-53 is connected to the recovery pipeline, and the filter structure is a detachable structure. The mixed gas collection pipeline 2-6 is connected to the suction device. Example
[0012] When coal tar residue or dirty oil sludge is used as material 2-10, a certain amount of coal tar residue or dirty oil sludge is loaded into barrel 2-2, and quick-open cover 2-3 is closed. Since a high-temperature resistant sealing ring is installed between quick-open cover 2-3 and barrel 2-2, coal tar residue or dirty oil sludge can be safely heated in an anaerobic state. The gas containing light impurities in the gas generated during the pyrolysis of coal tar residue or oily sludge is lighter in weight and will rise and then be discharged to the outside through the cooling and dust removal pipeline 2-5 on the upper side. When the cooling and dust removal pipeline 2-5 is discharged, the space between the outer pipeline 2-51 and the inner pipeline 2-52 is filled with cold water, and the cold water cools the pipeline flue gas. During the cooling, the flue gas is filtered through the filter structure 2-53, and the filtered gas enters the recovery pipeline for recovery. At the same time, the heavier mixed gas is on the lower side. The mixed gas on the lower side is transmitted to the post-processing equipment through the mixed gas collection pipeline 2-6. The post-processing equipment recovers the coal tar / pyrolysis oil from the tail gas containing volatile oil vapor through the process of condensation, filtration and adsorption; the purified tail gas is completely recovered, compressed and stored as a supplementary energy supply for the burner 1, realizing 100% tail gas reuse and reducing the operating cost. The burner 1 can automatically adjust the heating time according to the temperature in the combustion chamber 2-8, while ensuring that the coal tar residue or oily sludge is fully and thoroughly pyrolyzed, while saving the operating cost to the maximum extent. The heat-resistant fan 2-1 can ensure that the temperature of the combustion chamber 2-8 is consistent, and the coal tar residue or oil sludge is quickly heated, reducing the pyrolysis time and improving the efficiency. The cooling and dust removal pipeline 2-5 can quickly cool the pyrolyzed material 2-10 and quickly clean the discharge barrel 2-2 by a dedicated discharge mechanism, further improving the efficiency of the present invention.
[0013] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A vertical pyrolysis furnace, characterized in that It includes a burner, a furnace body, and a bracket. The burner and the furnace body are installed on the upper side of the bracket. The burner and the furnace body are connected. The outer side of the furnace body is wrapped with a thermal insulation layer. The furnace body is composed of a heat-resistant fan, a barrel, a quick-opening cover, an upper thermal insulation cover, a cooling and dust removal pipeline, a mixed gas collection pipeline, a flue, a combustion chamber, and a lower thermal insulation cover. A combustion chamber is arranged inside the furnace body. A feed port is opened on the upper side of the furnace body, and a discharge port is opened on the lower side. The feed port is located on the upper side of the combustion chamber, and the discharge port is located on the lower side of the combustion chamber. side, an upper insulation cover is installed at the feed port, a lower insulation cover is installed at the discharge port, a barrel is installed in the combustion chamber, quick-opening covers are installed at the upper and lower ends of the barrel, the barrel connects the feed port, the discharge port and the combustion chamber, the upper side of the barrel is respectively connected to the cooling and dust removal pipeline and the mixed gas collection pipeline, one side of the combustion chamber is respectively connected to the burner and the heat-resistant fan, the heat-resistant fan is connected to the burner and is located on the upper side of the burner, and the other side of the combustion chamber is connected to the flue; The mixed gas collection pipeline is connected to the air suction device; A high temperature resistant sealing ring is arranged between the quick opening cover and the barrel.
2. A vertical pyrolysis furnace according to claim 1, characterized in that The cooling and dust removal pipeline consists of an outer pipeline, an inner pipeline, and a filtering structure. The inner pipeline is wrapped inside the outer pipeline. A water inlet and a water outlet are opened on the upper side of the outer pipeline. The water inlet is connected to a water pump through a water supply pipeline, and the water outlet is connected to a recovery pool through a water supply pipeline. A filtering structure is installed at one end of the inner pipeline, and the filtering structure is connected to the recovery pipeline. The filtering structure is a detachable structure.