Reaction material mixing device in biodiesel production

Abstract

The utility model discloses a reaction material mixing device in biodiesel production. A reaction material mixer is vertically arranged, the upper end and the lower end of a mixer barrel are connected with large flanges, and the other face of the large flange at the lower end is connected with a conical liquid collecting hopper; a plurality of groups of baffles with a plurality of uniformly distributed small holes are uniformly arranged on the inner wall of the barrel body in a staggered manner; reinforcing rings are respectively arranged on the inner wall of the barrel body close to the upper and lower ends; the large flange at the upper end is connected with three reaction material pipelines with ball valves and knockout pumps, namely a raw material pipeline, a methanol pipeline and an auxiliary material pipeline; an outlet pipeline of the conical liquid collecting hopper is connected to the top of the alcoholysis kettle after being connected with a feeding ball valve of the alcoholysis kettle. The ester exchange reaction kettle is simple and compact in structure, low in manufacturing and maintenance cost, convenient and efficient to operate and good in mixing effect of various reaction materials, meets the requirement of continuous production of the ester exchange reaction kettle, and solves the problems of large manpower input, unstable production and low product yield of intermittent production of the ester exchange reaction kettle in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of biodiesel production devices, in particular to a reaction material mixing device in biodiesel production, and specifically to a reaction material mixing device in the alcoholysis process of biodiesel. Background Art

[0002] The production of biodiesel generally uses discarded animal and plant oils as raw materials to undergo esterification and transesterification with methanol to obtain fatty acid methyl esters, namely biodiesel. The transesterification method is divided into acid-catalyzed transesterification and base-catalyzed transesterification. The transesterification process of most domestic biodiesel production companies generally adopts reactor batch production. Since the reactor batch production process is relatively complex and has a low degree of automation, employees are prone to operating errors, which affects the stability of production, and the material loss is large, the product yield is low, and in addition, the intermittent operation requires more manpower. Therefore, it is necessary to develop a reactant material mixing device in the biodiesel production process to transform the intermittent production mode of the transesterification reactor into a continuous production mode. Summary of the invention

[0003] The utility model aims to provide a reaction material mixing device for biodiesel production which has a simple and compact structure, low manufacturing and maintenance costs, convenient and efficient operation, and good mixing effect of various reaction materials, so as to meet the requirements of continuous production of ester exchange reactors and solve the problems of large manpower input, unstable production and low product yield in intermittent production of ester exchange reactors in the prior art.

[0004] To achieve the above purpose, the utility model of the reaction material mixing device in the production of biodiesel comprises a raw material feed pump 1, a methanol feed pump 2, an auxiliary material feed pump 3, a raw material feed ball valve 4, a methanol feed ball valve 5, an auxiliary material feed ball valve 6, a reaction material mixer 7, an alcoholysis kettle feed ball valve 8 and an alcoholysis kettle 9; the reaction material mixer 7 is arranged vertically, and comprises a mixer barrel 7-2, the upper end of the barrel is connected to an upper end large flange 7-1, the lower end is connected to a lower end large flange 7-4, and the other side of the lower end large flange 7-4 is connected to a conical liquid collecting hopper 7-5; the mixer barrel 7-2 The inner wall is evenly and staggeredly provided with multiple groups of punching baffles 7-3 with multiple evenly distributed small holes, and a reinforcement ring is respectively provided on the inner wall of the barrel body near the upper and lower ends to ensure the overall mechanical strength of the barrel body; the large flange 7-1 at the upper end is connected to three reaction material pipelines, namely, a raw material pipeline with a raw material pump 1 and a raw material feed ball valve 4, a methanol pipeline with a methanol pump 2 and a methanol feed ball valve 5, and an auxiliary material pipeline with an auxiliary material pump 3 and an auxiliary material feed ball valve 6; the outlet pipeline of the conical liquid collecting hopper 7-5 is connected to the top of the alcoholysis kettle 9 after connecting the alcoholysis kettle feed ball valve 8.

[0005] The punching baffles 7-3 are made of 613L material and are provided with 6 groups in total.

[0006] The utility model of the reaction material mixing device in the biodiesel production has the following technical characteristics and beneficial effects:

[0007] 1. The advantages of the vertical reaction material mixer are: first, it has a compact structure, occupies relatively small space, and is easy to install and layout; second, it has high mixing efficiency and can achieve better mixing in a shorter time; third, the vertical mixing can utilize the gravity of the material for transportation, which is helpful for energy saving and consumption reduction; fourth, it has strong adaptability and can be applied to the mixing of various materials; fifth, it is convenient for daily cleaning and maintenance of the equipment, easy to clean and maintain, and reduce pollution and failures in production; sixth, it has good sealing performance, which can effectively prevent material leakage and the entry of external impurities, and ensure the safety and hygiene of the production process; seventh, because the methanol in the reaction material is easily gasified, the use of a vertical mixer can reduce the gas resistance phenomenon during material transportation.

[0008] 2. After passing through the vertical mixing device, various reaction materials are mixed in multiple stages and layers. The perforated baffle increases the contact area of ​​various raw and auxiliary materials, which is beneficial to the uniform mixing of various reaction materials. The mixing process of the entire reaction material is very smooth, which improves the mixing efficiency, so that the uniformly mixed reaction materials meet the requirements of continuous alcoholysis of the alcoholysis kettle 9, and the purpose of continuous production of the ester exchange reactor with continuous feeding of reaction materials and continuous discharge of alcoholysis kettle 9 is achieved.

[0009] 3. In actual production, the reaction materials are transported by a feed pump and then enter the alcoholysis reactor 9 after mixing. The resistance of the pipeline and each pipe fitting directly determines the selection of the feed pump and the energy consumption during the feeding. The utility model adopts a vertical structure and a punched baffle, which can reduce the resistance of the material when passing through the raw material mixer 7, thereby reducing the power consumption of the feed pump, which has a significant economic benefit for energy saving and consumption reduction and clean production.

[0010] 4. The entire device is made of 316L stainless steel, which has high corrosion resistance and long service life, and has great environmental benefits for clean production.

[0011] 5. The resistance generated by the reaction materials when mixed through the mixer is small, and the machine pump will not overflow or overload when punching materials, which meets the requirements of safe production.

[0012] 6. The whole device has a simple and compact structure and is easy to maintain. The upper and lower ends are connected by flanges, which is safe and reliable to use. The barrel can be directly removed during inspection and maintenance, and the operation is convenient, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the installation structure of a reaction material mixing device in biodiesel production.

[0014] Figure 2yes Figure 1 Schematic diagram of the enlarged structure of the reaction material mixer.

[0015] Figure numerals: raw material feeding pump 1, methanol feeding pump 2, auxiliary material feeding pump 3, raw material feeding ball valve 4, methanol feeding ball valve 5, auxiliary material feeding ball valve 6, reaction material mixer 7, upper large flange 7-1, mixer barrel 7-2, perforated baffle 7-3, lower large flange 7-4, conical liquid collecting hopper 7-5, alcoholysis kettle feeding ball valve 8, alcoholysis kettle 9. DETAILED DESCRIPTION

[0016] The specific implementation of the reaction material mixing device in biodiesel production of the utility model is further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 , Figure 2 As shown, the reaction material mixing device in the biodiesel production of the utility model comprises a raw material feed pump 1, a methanol feed pump 2, an auxiliary material feed pump 3, a raw material feed ball valve 4, a methanol feed ball valve 5, an auxiliary material feed ball valve 6, a reaction material mixer 7, an alcoholysis kettle feed ball valve 8 and an alcoholysis kettle 9; the reaction material mixer 7 is arranged vertically, and comprises a mixer barrel 7-2, the upper end of the barrel is connected to an upper end large flange 7-1, the lower end is connected to a lower end large flange 7-4, and the other side of the lower end large flange 7-4 is connected to a conical liquid collecting hopper 7-5; the inner wall of the mixer barrel 7-2 is uniformly Six groups of 613L perforated baffles 7-3 with multiple evenly distributed small holes are arranged alternately, and a reinforcement ring is provided on the inner wall of the barrel body near the upper and lower ends to ensure the overall mechanical strength of the barrel body; the large flange 7-1 at the upper end is connected to three reaction material pipelines, namely a raw material pipeline with a raw material pump 1 and a raw material feed ball valve 4, a methanol pipeline with a methanol pump 2 and a methanol feed ball valve 5, and an auxiliary material pipeline with an auxiliary material pump 3 and an auxiliary material feed ball valve 6; the outlet pipeline of the conical liquid collecting hopper 7-5 is connected to the top of the alcoholysis kettle 9 after connecting the alcoholysis kettle feed ball valve 8.

[0018] The above-mentioned reaction material mixing device in the production of biodiesel can reduce the manpower input in the production process of biodiesel, improve the automation degree of the production process, reduce the errors caused by manual operation, and continuous production is conducive to the stability of production conditions, which can reduce the use of auxiliary materials and the amount of saponification products produced in the production process, thereby improving the product yield. It also has good economic and environmental benefits in terms of energy saving, consumption reduction and clean production.

[0019] During operation, before starting the machine, first open the alcoholysis kettle feed ball valve 8, then open the raw material feed ball valve 4, methanol feed ball valve 5 and auxiliary material feed ball valve 6, and then open the raw material pump 1, methanol pump 2 and auxiliary material pump 3; various reaction materials from the three pumps enter the reaction material mixer 7 and impact the perforated baffle 7-3 made of 316L material. Under the action of the impact force, the materials form a torrent in the mixer, most of the materials are mixed step by step, and some materials pass through the plate holes of the perforated baffle 7-3 to form a multi-channel material mixing, so that various reaction materials form a multi-level and multi-channel mixture in the mixer, and a variety of reaction materials are dispersed and mixed uniformly; the mixed reaction materials are received by the conical liquid collecting hopper 7-5 and enter the alcoholysis kettle 9 through the material pipeline. When it is necessary to shut down, first turn off the three pumps and then close all the ball valves.

Claims

1. A device for mixing reaction materials in biodiesel production, characterized by: The invention comprises a raw material pump (1), a methanol pump (2), an auxiliary material pump (3), a raw material feed ball valve (4), a methanol feed ball valve (5), an auxiliary material feed ball valve (6), a reaction material mixer (7), an alcoholysis kettle feed ball valve (8) and an alcoholysis kettle (9); the reaction material mixer (7) is arranged vertically, and comprises a mixer barrel (7-2), the upper end of the barrel is connected to an upper end large flange (7-1), the lower end is connected to a lower end large flange (7-4), and the other side of the lower end large flange (7-4) is connected to a conical liquid collecting hopper (7-5); the inner wall of the mixer barrel (7-2) is evenly and staggeredly arranged There are multiple groups of perforated baffles (7-3) with multiple evenly distributed small holes, and a reinforcement ring is provided on the inner wall of the barrel body near the upper and lower ends to ensure the overall mechanical strength of the barrel body; the large flange (7-1) at the upper end is connected to three reaction material pipelines, namely a raw material pipeline with a raw material pump (1) and a raw material feed ball valve (4), a methanol pipeline with a methanol pump (2) and a methanol feed ball valve (5), and an auxiliary material pipeline with an auxiliary material pump (3) and an auxiliary material feed ball valve (6); the outlet pipeline of the conical liquid collecting hopper (7-5) is connected to the top of the alcoholysis kettle (9) after being connected to the alcoholysis kettle feed ball valve (8).

2. The device for mixing reaction materials in biodiesel production according to claim 1, characterized in that: The punching baffles (7-3) are made of 613L material and are provided in 6 groups.

Images