Recycling device for coumarone resin filtrate

Abstract

The coumarone resin filter recycling device comprises a reaction kettle, a knockout pump, a filter, a conveyor belt, a grinder and a sealing pump, according to the method, unreacted polyaluminum chloride in the process of preparing coumarone resin from bisphenol A tar is recycled, ground and reused, so that cyclic utilization of the polyaluminum chloride is realized, resource waste is effectively reduced, and cost increase caused by treatment of the polyaluminum chloride as a hazardous waste is also avoided.

Description

Technical Field

[0001] The utility model belongs to the field of petrochemical industry, in particular to a coumarone resin filtered material recycling device. Background Art

[0002] Coumarone resin, also known as coumarone-indene resin, oxoindene resin or coal tar resin, is generally a yellow, brown or black block solid. It has good thermoplasticity, corrosion resistance, aging resistance and heat resistance. It is flammable and non-toxic. It is used in many industrial fields. It can be used as a rubber softener and reinforcing agent. It can also be used as a solvent-based tackifier, plasticizer and softener. It can also be used as a protective agent for coatings, inks, glues, etc. Bisphenol A tar is a by-product produced in the production process of bisphenol A. It has a high recycling value. At present, coumarone resin is obtained by reacting with polyaluminium chloride powder in industrial production. In this production process, part of the polyaluminium chloride in the reactor that does not participate in the reaction will agglomerate and flow out with the coumarone resin product. In industrial production, a filter is usually used to filter this part of the agglomerated polyaluminium chloride and send it to a qualified hazardous waste treatment company for treatment, which greatly increases the production cost and causes a waste of resources. How to recycle unreacted polyaluminium chloride is a difficult problem that needs to be solved urgently in the production of coumarone resin from bisphenol A tar. Utility Model Content

[0003] The utility model provides the following technical solution: a coumarone resin filtrate recycling device, comprising a reactor, a feed pump, a filter, a conveyor belt, a grinder, and a sealing pump; the characteristics are: the reactor is provided with a heat transfer oil inlet and a heavy component discharge port at the bottom; a bisphenol A tar feed port, a polyaluminium chloride feed port, a polyaluminium chloride circulation replenishment port, a light component outlet and a heat transfer oil outlet are provided at the top; one end of the feed pump is connected to the heavy component discharge port of the reactor through a pipeline; the other end is connected to the filter feed port through a pipeline; one end of the conveyor belt is placed below the filter discharge port, and the other end is placed above the grinder feed port; the grinder is connected to the sealing pump through a pipeline; the sealing pump is connected to the reactor feed port through a pipeline.

[0004] The reactor is a polymerization reactor, which is an industrial polymerization reactor and is heated by circulating heat transfer oil.

[0005] Preferably, the conveyor belt is a belt-type particle material conveyor belt, with baffles added on both sides to prevent the material from falling off.

[0006] Preferably, the grinding machine model is WF-40B.

[0007] Preferably, the filter model is GLJ-20.

[0008] Preferably, the feed pump model is IH32-20-160.

[0009] Preferably, the sealing pump model is LFB150.

[0010] Compared with the prior art, the utility model has the following improved effects: by recovering the unreacted polyaluminium chloride in the process of preparing coumarone resin from bisphenol A tar and grinding it for reuse, the recycling of polyaluminium chloride is achieved, the waste of resources is effectively reduced, and the cost increase caused by treating it as hazardous waste is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of a coumarone resin filtrate recycling device;

[0012] In the figure, 1. Reactor; 2. Feed pump; 3. Filter; 4. Conveyor belt; 5. Grinder; 6. Sealing pump. DETAILED DESCRIPTION

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] The present invention provides the following technical solutions: a coumarone resin filtrate recycling device, comprising a reactor, a feed pump, a filter, a conveyor belt, a grinder, and a sealing pump; characterized in that: the reactor is provided with a heat transfer oil inlet and a heavy component discharge port at the bottom; a bisphenol A tar feed port, a polyaluminium chloride feed port, a polyaluminium chloride circulation replenishment port, a light component outlet and a heat transfer oil outlet are provided at the top; one end of the feed pump is connected to the heavy component discharge port of the reactor through a pipeline; the other end is connected to the filter feed port through a pipeline; one end of the conveyor belt is placed below the filter discharge port, and the other end is placed above the grinder feed port; the grinder is connected to the sealing pump through a pipeline; the sealing pump is connected to the reactor feed port through a pipeline. Example 1

[0015] After the bisphenol A tar reacts with polyaluminium chloride in the reactor, the product coumarone resin passes through the discharge port of the reactor and enters the filter via a feed pump. The coumarone resin filtrate enters the next process for further treatment. The filtered polyaluminium chloride residue enters the conveyor belt, which transports the residue to the grinder. After the grinder grinds the aluminium chloride residue, it is sent into the reactor through a pipe via a sealing pump for recycling.

Claims

1. A coumarone resin filtrate recycling device, comprising a reaction kettle, a material pump, a filter, a conveyor belt, a grinder, and a sealing pump; characterized in that: The reactor is provided with a heat transfer oil inlet and a heavy component discharge port at the bottom; a bisphenol A tar feed port, a polyaluminium chloride feed port, a polyaluminium chloride circulation replenishment port, a light component outlet and a heat transfer oil outlet at the top; one end of the feed pump is connected to the heavy component discharge port of the reactor through a pipeline; the other end is connected to the filter feed port through a pipeline; one end of the conveyor belt is placed below the filter discharge port, and the other end is placed above the grinder feed port; the grinder is connected to the sealing pump through a pipeline; the sealing pump is connected to the reactor feed port through a pipeline.

Images