中English国际上广泛应用的浆料洗涤移动硬盘灌粉机水管接头湿度表电梯空调Frc

【中/English】国际上广泛应用的浆料洗涤设备

浆料洗涤是造纸行业制浆过程节能减排的重要环节，高效节能的洗浆设备是实现其功效的重要保障。汶瑞机械（山东）有限公司把握行业形势，紧跟国际前沿技术，积极开展创新工作，研发了高浓出浆的双辊压榨洗浆机，并实现了从小规格到大产能，从单机可靠到单高效的发展目标，达到了国际同类产品的先进水平。

Efficient pulp washing equipment plays a vital role in the energy conservation and emission reduction of the pulping process. The twin roll wash press with high outlet consistency was lately developed by Wenrui Machinery (Shandong) Co., Ltd. Being able to realize capacity expansion and efficient operation, it has achieved widespread application.

1、工作原理及特点 Operation principles and features

汶瑞公司生产的双辊压榨洗浆机，按结构主要分为SJA和SJB两种类型，前者从设备两侧进浆并具有置换洗涤功能，主要用于制浆过程的废液提取；后者从设备底部进浆没有置换功效，主要用于浆料浓缩。

Twin roll wash press manufactured by Wenrui has two series of SJA and SJB. The former refers to pulp feeding from both sides with replac ment washing function, applied to black liquor extraction in pulping line; the later refers to pulp feeding from bottom without replac ment function, applied to pulp concentration.

SJA双辊压榨洗浆机集过滤脱水、置换洗涤、压榨脱水于一体，浆料从设备两侧进入布浆装置，把浆料沿轴向辊面均匀分布，继而完成三个阶段的洗涤过程。首先，通过进浆压力和液位差的共同作用进行过滤脱水，在辊面形成连续均匀的浆层；其次，随着压榨辊转动把浆料浓缩到10%-14%的浓度，再用洗涤水进行置换洗涤；第三是利用两压辊的压榨力把置换洗涤后的浆料浓缩到预期的高浓状态。

SJA twin roll wash press is combined with dewatering, displacement and pressing functions. Pulp feeds to distributor from both sides, then uniformly distributed on roll surface in axial direction, and the three stages of washing shall be completed. Firstly, pulp dewaters due to feeding pressure and level differential, and forms continuously uniform sheet on roll surface; secondly, as rolls are rotating, pulp is thickened to consistency of 10%-14%, followed by displacement with washing water; thirdly, displaced pulp is thickened to desired high consistency by twin roll mechanical pressing force.

该设备主要特点如下：

（1） 集过滤脱水、置换洗涤和挤压浓缩于一体，用水量少，洗涤效率高。

（2） 单机生产能力大，可单线配套大规模生产项目，有效地降低建设投资及生产成本。

（3） 中浓进浆，高浓出浆，大幅度减少流体输送量，可节约能耗证券质押和提高流送效率。

（4） 重力脱水，不需高程布置，设备单位面积产能大，占地面积小，土建费用少。

（5） 提取的液体量少，回收的废液浓度高，废液提取率高，洗涤损失少，能降低蒸发成本和减少漂白药品消耗。洗车

（6） 自动化控制程度高，易于实现人工智能操作，安全性能可靠，生产效率高。

Major features:

(1)Combination of dewatering, displacement and pressing, less water consumption, higher washing efficiency;

(2)High production capacity, available to large-scale project, effectively reduce construction investment and production cost;

(3)Medium consistency feeding, high consistency out put , reduce feeding volume and energy consumption, improve concentrating efficiency;

(4)Dewatering by gravity, no requirement for highlevel building, high capacity for unit area, less area occupation, less civil work cost;

(5)Less extracted liquor with higher black liquor concentration, higher extraction rate, less washing loss, reduce evaporating cost and chemical consumption in bleaching;

(6)High automation, easy to artificial intelligent operation, reliable performance, high efficiency.

2、关键技术及优势Key techniques and advantages

双辊压榨洗浆机的研制，主要应用与优化了以下几方面的关键技术，使设备性能更加可靠，技术优势明显提升。

（1）专用的工艺装备和加工设备。采用专用工艺装备和热装成型工艺，同时购进大型精密数控加工机床，保证整支压榨辊的装配精度、加工精度和位置精度，确保设备结构性能；

（2）均匀的布浆装置。根据中、低浓浆料流体特性，切实设计流道截面和折流反射结构，既减少流体阻力，又保证布浆均匀，并彻底避免堵浆现象，提高洗涤效率；

（3）合理的流道结构。根据设备规格特征，设计适宜的流体通道，注重防止滤液倒流结构设计，以提高滤液流速和排液量，并防止滤液倒流反湿现象，提高出浆干度。

（4） 可靠捷便的密封结构。采用液压升降、锁紧、气囊密封等结构，在保证密封可靠的前提下，提高设备维护效率及降低劳动强度。

（5）先进的自动化控制手段。严格按照工艺及设备操作规程进行顺序控制设计，实现一键安全开机及一键安全停机，防止误操作。同时，根据影响双辊压榨洗浆机的诸多影响因素，确定关键的控制要素，对其关联要素进行自动判断控制，保证设备运行的可靠性、安全性和系统的稳定性。

(1)Special process facilities and machining equipment.

Apply tailored process equipment and heat assembly technique, large numerical machining lathe, to ensure the complete assembly accuracy , machining and positioning accuracy for the roll and the performance.

(2)Uniform pulp distributor. Design the channel section a自攻螺丝nd baffl ing refl ex structure. Reduce fluid resistance, ensure an uniform distribution, completely avoid blockage to improve washing efficiency.

(3)Reasonable channel structure. According to equipment specifi cations, a suitable fl ow channel was designed to prevent fi ltrate back fl ow, increase fi ltrate velocity and drainage amount to prevent rewetting and increase outlet consistency.

(4) Reliable, convenient seal arrangement. Apply hydraulic lifting, locking and air seal design to improve equipment maintenance efficiency and reduce labor strength while the seali万能材料实验机从最早利用于金属领域开始ng is reliable.

(5)Advanced auto化装品经过运输mation control. Implement sequence control design strictly according to process and equipment operation procedures, achieve one-key safe start-up and shutdown to avoid wrong operation. Meanwhile, depending on several factors related to twin roll wash press, decide essentially controlling factors, automatically judge and control related factors to ensure the equipment running reliability, safety and system stability.

3、产品应用及效果Product Application and Results

汶瑞公司根据市场需求，开发了适用于不同规模和浆种的￠700、￠900、￠1500、￠2200直径的系列投影幕布产品，现已生产90多台设备，成功用于国内麦草、苇（荻）、蔗渣、阔叶木化学浆和阔叶木化机浆及国外化学木浆的洗涤，进浆浓度为3%-8%，出浆浓度为20%-30%，运行效果比较理想。该设备在木浆ECF漂白项目成线配套时，洗选漂的吨浆用水量、污水量和蒸汽消耗分别不高于13m3、10m3和400kg，系统电耗也明显降低。设备规格已能够满足不同规模和不同浆种的配套需求，占企业产品销售额的50%以上。

Depending on market demand, different size则整批不得交货s have been developed in 700, 900, 1500, and 220 diameter suitable for different capacity and pulps. More than 90 sets were delivered to wheat straw, reed, bagasse, HW chemical pulping, and HW mechanical pulping mills in China, as well as chemical wood pulping mills overseas. With inlet consistency of 3%-8%, outlet consistency of 20%-30%, good operating performances were achieved. The equipment is also applied in wood based ECF bleaching system, water consumption, effluent discharge and steam consumption for washing and bleaching per ton pulp are 13m3, 10m3 and 400kg respectively, with power consumption obviously reduced. The series have met the demand for various capacity and various pulp grades, accounting for over 50% of the sales volume of Wenrui’s products.

4、结语Conclusion

汶瑞公司持续推进国际化发展战略，不断加大国际市场开发力度。目前已有30多台双辊压榨洗浆机销往印尼市场和印度市场，占企业出口产品份额的80%以上。在印尼OKI年产280万吨阔叶木化学浆项目中，配套了18台SJA2284（辊径￠2200mm，辊子长度8400mm）双辊压榨洗浆机，单机产能可达4500吨/d，一次性投运成功。

实践证明，双辊压榨洗浆机已是目前大规模洗漂项目首选的洗涤设备，标志着中国洗浆设备已迈入世界高端制浆装备业的行列，具备了国际市场竞争力，具有良好的发展前景。

Wenrui continues to push international development strategy and expand overseas market. Presently over 30 sets of twin roll wash press are in operation in Indonesia and India market, with over 80% share of products exported. 18 sets of SJA2284 (roll dia. 2200mm, roll width 8400mm) were delivered to a 2.8 million t/a hardwood pulping line in OKI Pulp Paper, Indonesia, with single machine production capacity reaching 4500t/d, and successfully started up at one trial. It’s proved that twin roll wash press can be a good choice for large-capacity pulping project. China homebred pulping equipment has gradually entered high-end market in the globe.

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